U.S. President Barack Obama announced on Thursday night he had
authorised the Pentagon to launch targeted airstrikes if needed to
protect Americans from Islamic militants in northern Iraq and help Iraqi
security forces protect civilians under siege, threatening to revive
U.S. military involvement in the country’s long sectarian war. In a televised late-night statement from the White House, Mr. Obama also
said American military forces had already carried out airdrops of
humanitarian aid to tens of thousands of Iraqi religious minorities
desperately in need of food and water. “Today America is coming to help,” he declared. The announcements reflected the deepest American engagement in Iraq
since U.S. troops withdrew in late 2011 after nearly a decade of war.
Friday, 8 August 2014
Sunday, 22 June 2014
Dinosaur sporting ‘wings’ on head found
Triceratops are passe. Here comes a new horned dinosaur
and its cranial ornamentation is even more flowery than the
three-horned dinosaur the world had earlier come to know, reveals a new
study.
A study of the recently discovered species,
Mercuriceratops gemini, provides more details on this flashy dinosaur
which possessed not only the standard trifecta of facial horns but also a
giant, wing-like frill protruding from the back of its skull.The research is based on fossil evidence collected from Montana and Alberta, Canada.The
dinosaur’s name, Mercuriceratops, is a combination of “Mercury” — the
Roman God best known for his winged helmet — and “ceratops,” a Greek
word meaning “horned face”.
“The butterfly shaped
frill, or neck shield, of Mercuriceratops is unlike anything we have
seen before,” said David Evans, curator of vertebrate paleontology at
Royal Ontario Museum in Canada.
“Mercuriceratops
shows that evolution gave rise to much greater variation in horned
dinosaur headgear than we had previously suspected,” he added.Mercuriceratops
gemini lived about 77 million years ago, during the Late Cretaceous
Period, and was approximately 6 metres long and weighed more than 2
tonnes, Live Science reported.
The findings appeared in the journal Naturwissenschaften.
Gene critical for brain development identified
Researchers have identified a gene which is required
for the proper development of a healthy cerebellum, a master control
centre in the brain for balance, fine motor control and complex physical
movements.Researchers have found that a specific gene, called Snf2h, plays an important role in the development of the cerebellum.Athletes
and artists perform their extraordinary feats relying on the
cerebellum. The cerebellum is critical for the everyday tasks and
activities that we perform, such as walking, eating and driving a car.By
removing Snf2h, researchers found that the cerebellum was smaller than
normal, and balance and refined movements were compromised.Led
by Dr. David Picketts, a senior scientist at the Ottawa Hospital
Research Institute and professor in the Faculty of Medicine at the
University of Ottawa, the team described the Snf2h gene, which is found
in our brain’s neural stem cells and functions as a master regulator.
When they removed this gene early on in a mouse’s development, its cerebellum only grew to one-third the normal size.It
also had difficulty walking, balancing and coordinating its movements,
something called cerebellar ataxia that is a component of many
neurodegenerative diseases.“As these cerebellar stem
cells divide, on their journey toward becoming specialised neurons,
this master gene is responsible for deciding which genes are turned on
and which genes are packed tightly away,” said Picketts.“Without
Snf2h there to keep things organised, genes that should be packed away
are left turned on, while other genes are not properly activated.“This
disorganisation within the cell’s nucleus results in a neuron that
doesn’t perform very well — like a car running on five cylinders instead
of six,” he said.The cerebellum contains roughly half the neurons found in the brain. It also develops in response to external stimuli.So,
as we practice tasks, certain genes or groups of genes are turned on
and off, which strengthens these circuits and helps to stabilise or
perfect the task being undertaken.
The researchers
found that the Snf2h gene orchestrates this complex and ongoing process.
These master genes, which adapt to external cues to adjust the genes
they turn on and off, are known as epigenetic regulators.
“These epigenetic regulators are known to affect memory, behaviour and learning,” said Picketts.
“Without
Snf2h, not enough cerebellar neurons are produced, and the ones that
are produced do not respond and adapt as well to external signals.“They
also show a progressively disorganised gene expression profile that
results in cerebellar ataxia and the premature death of the animal,” he
said.
The study was published in the journal Nature Communications.
Tuesday, 25 March 2014
Cosmic inflation no longer theory, now a fact
On March 17, the most important day for cosmology in over a decade, the
Harvard-Smithsonian Centre for Astrophysics made an announcement that
swept physicists off their feet. Scientists published the first pieces
of evidence that a popular but untested theory called cosmic inflation
is right. This has significant implications for the field of cosmology.
The results also highlight a deep connection between the theories of
relativity and quantum mechanics. This has been the subject of a
century-old quest in physics. Cosmic inflation was first hypothesized by
American physicist Alan Guth. He was trying to answer the question why
distant parts of the universe were similar even though they couldn’t
have shared a common history. In 1980, he proposed a radical solution.
He theorized that 10-36 seconds after the Big Bang happened, all matter and radiation was uniformly packed into a volume the size of a proton.
By the time it was 10-33 seconds old, its volume had increased by 1078
times — a period called the inflationary epoch. After this event, the
universe was almost as big as an orange, expanding to this day but at a
slower pace. While this theory was poised to resolve many cosmological
issues, it was difficult to prove. To get this far, scientists from the
Centre used the BICEP2 telescope.
Through the South Pole’s dry atmosphere, BICEP (Background Imaging of
Cosmic Extragalactic Polarization) 2 studies the 13.5 billion-year old
residual energy of the Big Bang called the cosmic microwave background
(CMB). This is a field of microwave radiation that permeates the
universe. The CMB consists of electric (E) and magnetic (B) fields,
called modes.
The B-mode patterns, in particular, have undergone some changes as the
universe aged. It is susceptible to gravitational effects. For example,
the E-mode can be twisted by the strong gravitational pulls of large
galaxies into the B-mode.
However, scientists were looking for effects of what are called
gravitational waves. These are waves of purely gravitational energy
capable of stretching or squeezing the space-time continuum.
The inflationary epoch is thought to have set off gravitational waves
rippling through the continuum. In the process, they etched their
effects on the B-mode, visible today as a curling pattern in the
magnetic field.
To find this, a team of radio-astronomers led by John Kovac from the
Harvard-Smithsonian Centre for Astrophysics used the BICEP2 telescope
from 2010 to 2012. It was equipped with a lens of aperture 26 cm,
scanning an effective area of two to 10 times the width of the Moon.
Then, they used the different datasets they’d collected to subtract
unwanted signals from one another until they were left with one that
showed only the amount of curl. Prof. Kovac said in a statement,
“Detecting this signal is one of the most important goals in cosmology
today.”
The curl due to gravitational waves was confirmed with a statistical
significance of 5.2 sigma — sufficient to claim evidence — but only in
the part of the sky they mapped. The team has set a significance of 2.7
sigma for the rest of the sky, and future work will focus on
strengthening this.
Scientists were also looking for a ratio called the tensor-to-scalar
ratio. It denotes the amplitude of the gravitational waves. Its value
has been found to be 0.20 plus or minus 0.05. Although theoretical
predictions had pegged it between 0 and 0.3, scientists had expected it
to be less than 0.2. The higher value means the ancient gravitational
waves were more powerful than expected, and could explain why galaxies
formed so rapidly after the inflation.
Now, astrophysicists from other observatories around the world will try to replicate BICEP2’s results.
It is notable that gravitational waves are a feature of the theories of
relativity, and cosmic inflation is a feature of quantum mechanics.
Thus, the BICEP2 results show that the two previously exclusive theories
can be combined at a fundamental level. This throws open the door for
physicists to explore a unified theory of nature in new light.
NASA searches for ideas to bring asteroids closer to earth
U.S. space agency NASA has announced a formal proposal
worth $6 million for projects that would help robots and astronauts grab
an asteroid from deep space and bring it closer to earth for further
study.
In support of NASA’s Asteroid Redirect Mission
— a key part of the agency’s stepping stone path to send humans to Mars
— agency officials are seeking proposals for studies on advanced
technology development.
NASA envisages spending up to $6 million on over 25 proposals this year.
The
proposal should focus on technologies that can be used to identify
potential targets like sending robotic spacecraft to capture the
selected asteroid and put it in a stable orbit beyond the moon.
The
technology should also help astronauts get to the space rock and bring
back samples in the mid-2020s, NASA said in a statement.
“We
are reaching out to seek new and innovative ideas as we extend the
frontier of space exploration,” said Bill Gerstenmaier, NASA’s associate
administrator for human exploration and operations.
“To
reach Mars, we would rely on new technologies and advanced capabilities
proven through the Asteroid Initiative. We are looking forward to
exciting ideas from outside NASA as well to help realise that vision,”
he added.
The proposals have to be submitted before
May 5 and the space agency would reward the winners around July 1 for
projects that would wrap up in six months.
According
to Greg Williams, NASA’s deputy associate administrator for plans and
policy, the selection process would build on a workshop that generated
hundreds of ideas for asteroid exploration last year.
NASA
is already supporting projects such as the Asteroid Data Hunter
contest, which is offering $35,000 in awards over the next six months to
citizen scientists who come up with improved algorithms for identifying
asteroids.
Next year, the space agency would review
mission concepts for redirecting an asteroid up to 10 metres wide — or
breaking off a piece of a bigger asteroid and bringing it back.
Bad weather halts MH370 search
Bad weather has forced the suspension of the search for debris from Malaysia Airlines flight MH370.
Heavy
rain, gale force winds and low cloud made a search impracticable, said
the Australian Maritime Safety Authority, which is coordinating the
search in the southern Indian Ocean.
Air and searches could resume on Wednesday.
Planes
from five nations trawling a Lithuania-sized patch of ocean midway
between Australia and Antarctica have spotted objects they are trying to
locate in the 68,500 sqkm area, 2,500 kilometres south-west of Perth.
So far none of the objects spotted has been located.
The
latest sightings — “a grey or green circular object and the second an
orange rectangular object” — were spotted on Monday from an Australian
Orion maritime surveillance plane.
The Australian
Maritime Safety Authority said in its latest statement that all of the
various sightings had been in the search area.
The
area was plotted using computer modelling of where the plane would have
run out of fuel if, as the Malaysians now believe, it flew south after
doubling back during a March 8 flight from Kuala Lumpur to Beijing.
The
US Navy, which has a surface-skimming P8 Poseidon, described as the
world’s most sophisticated maritime patrol aircraft, in the search
fleet, is deploying a special undersea device to help find the black box
of the lost Boeing 777-200.
The towed pinger locator
can identify the characteristic “ping” emitted by the flight recorder
from an ocean depth of more than 6,000 metres, the US Defence Department
said.
Wednesday, 5 March 2014
NASA to send robotic mission to Europa
NASA is planning to send a daring robotic mission by 2025 to Jupiter’s watery moon Europa — one of the best bets for alien life beyond Earth in our solar system.
The American space agency has set aside $15 million in its 2015 budget proposal to start planning a mission to Europa.
NASA’s chief financial officer, Elizabeth Robinson, was quoted by The Times as saying that the Europa mission would be launched in the mid-2020s.
Laurie Leshin, astronomer at the Rensselaer Polytechnic Institute in New
York, said it would be “a daring mission to an extremely compelling
object in our solar system.”
It is the first time the White House has mentioned a Europa mission in its budget, according to Wired.com.
“Clearly this is a statement by NASA that they recognise the priority
and excitement of Europa exploration,” commented geologist Robert
Pappalardo from NASA’s Propulsion Laboratory (JPL).
Europa is one of the solar system’s most mysterious moons. There may be a
vast ocean beneath Europa’s icy crust, with more water in it than
exists on all of Earth.
A little bit of that water may be erupting from geysers near the
Europa’s south pole, sending plumes 200 kilometres into the air, a
recent study has found.
Scientists can send a spacecraft flying through these jets in order to sample their composition.
“I would not be overly optimistic until I see the words, ‘We want to go
to Europa’,” from the administration, said planetary scientist Alyssa
Rhoden of NASA’s Goddard Spaceflight Center.
Robinson said NASA will look at many competing ideas for a Europa
mission, so the agency does not yet know how big or how much it will
cost.
Putin orders troops to pull back from border
East-West tensions over Ukraine eased on Tuesday as
President Vladimir Putin said he saw no need “for now” to send troops to
the neighbouring state and ordered Russian armed forces to be pulled
back from Ukraine’s border.“As for the use of armed
forces, there is no such need for now,” Mr. Putin said in his first
public comments on the Ukraine crisis.Describing use
of force as a choice of “last, very last resort,” Mr. Putin warned that
he could still go for it if the violence that swept Kiev in recent
weeks spilled over to Ukraine’s Russian-speaking eastern regions.Looking
relaxed and confident Mr. Putin fielded questions on Ukraine from
Russian and foreign journalists for about 90 minutes at a news
conference at his state residence outside Moscow.“If
people ask us for help — and we have a formal request from [Ukraine’s]
legitimate President – we reserve the right to use all means available
to protect those citizens,” Mr. Putin said.Addressing
a U.N. Security Council emergency meeting on Monday Russia’s Ambassador
Vitaly Churkin read out a letter Ukraine’s ousted President Viktor
Yanukovych sent to Mr. Putin asking him to use military force in Ukraine
to help restore law and order.Mr. Putin denied
Russian troops had been deployed in Ukraine’s Crimea. He said the masked
armed men who had taken full control of the peninsula were “local
forces of self-defence.”The Russian leader confirmed
that 1,50,000 troops who had been holding snap military drills near the
Ukrainian border over the past seven days were returning to their
bases.Asked if he felt concerned that a war could
break out in Ukraine, Mr. Putin said: “I’m not worried because we have
no plans and will not fight a war against the people of Ukraine.”He
said Russia had no intention to annex Crimea. “We are not considering
this option. I think only people living on a territory can and should
decide their future.”Recalling the case of Kosovo,
which gained independence from Serbia, and the right to
self-determination enshrined in U.N. documents, Mr. Putin said: “But we
will never provoke anybody to take such a decision and will never
encourage such sentiments.”While Mr. Putin’s comments helped defuse tensions, the rift between Russia and the West over Ukraine appeared to be widening.Even
as U.S. Secretary of State John Kerry arrived in Kiev on Tuesday in a
high-profile gesture of support for Ukraine’s new authorities, Mr. Putin
denounced the makeover of power in Ukraine as an “unconstitutional coup
and armed power grab.”As Mr. Kerry prepared to meet
Ukraine’s Acting President Oleksandr Turchynov and Acting Prime
Minister Arseniy Yatsenyuk, Mr. Putin said both were “illegitimate” and
insisted that Mr. Yanukovych was still the lawful President, even if he
“has no political future.”Asked about U.S. threat to penalise Russia, Mr. Putin warned that sanctions would “hurt both sides.”Mr.
Putin’s economic adviser Sergei Glazyev said on Tuesday that should the
U.S. resort to sanctions, Moscow might drop the dollar as a reserve
currency and refuse to repay loans to U.S. banks.
As
the Ukrainian Parliament ratified an agreement with the European Union
to receive a 610-million Euro loan and the U.S. offered another $1
billion in loan guarantees, Mr. Putin said Gazprom would scrap a heavy
price discount it extended to Ukraine in December because of piling
debts for earlier supplies.
China hikes defence spending
China on Wednesday announced its biggest hike in military spending in
three years, with its defence budget set to cross $ 130 billion in the
coming year.Chinese military analysts explained the 12.2 per cent hike as driven by
the need to counter a "high risk security environment" in the region,
marked in recent months by rising territorial tensions with many
neighbours.A draft budget report, which is expected to be approved during the
week-long annual session of the National People's Congress (NPC) or
Parliament, which opened here on Wednesday morning, proposed a 12.2 per
cent hike in defence spending to 808.2 billion Yuan, or $132 billion.This reflected an $ 18 billion rise from the previous year, when the
budget rose by 10.7 per cent, and the highest percentage increase since
2011, when spending was hiked by 12.7 per cent.
While Chinese officials said the increase was in keeping with the size
of China's growing economy and in line with what most countries spend in
terms of percentage of GDP, the 12.2 per cent hike is certain to stir
the attention of the region, and particularly China's neighbours.China's spending now dwarfs that of most countries in the region, and is
second only to the United States, which spends more than $ 600 billion
on defence.Last month, India announced a 10 per cent hike in military spending
during the interim budget. On account of the weakening rupee, however,
India's effective defence spending in dollar terms actually fell from
last year, down to $ 36.2 billion from $ 37.5 billion."There is a yawning gap emerging in the conventional capabilities
between China and India," warned Brig. (Retd) Arun Sahgal, Director of
the Forum for Strategic Initiative in New Delhi."This asymmetry is increasing by the day, and the fundamental point is
that the Chinese, because of a strong economic position and a very
definite plan, are focused on military modernisation".Chinese Premier Li Keqiang, who presented the government's annual report
to the NPC's opening session, vowed to carry out "coordinated planning
for military preparedness in all scenarios" and to push the development
of "new and high technology weapons and equipment". He said China would
also enhance border, coastal and air defences and "place war
preparations on a regular footing".At the same time, his work report said China would "advance
neighbourhood diplomacy" and "speed up" infrastructure links with
neighbours. Mr. Li specifically highlighted the on-going plans to build a
Bangladesh-China-India-Myanmar (BCIM) economic corridor, a "maritime
silk road" linking Asia and the Indian and Pacific Oceans, and a
corridor linking China and Pakistan as priorities.Chinese military analysts explained the defence hike as a response to
China's challenges in the region, such as on-going territorial
differences with Japan over East China Sea islands, and recent disputes
in the South China Sea."In order to protect the country and safeguard regional peace and
stability, China has to enhance its national defence," said Chen Zhou, a
researcher with the People's Liberation Army's Academy of Military
Sciences and a member of the NPC, adding that China was facing
"increasing strategic pressure" with some countries in Asia "speeding up
strategic adjustments and strengthening military alliances", in a
reference to the U.S. "pivot"."The comparatively low level of input into national defence, coupled
with a high-risk security environment, dictates that we must raise our
defence budget on a moderate scale," he told the official Xinhua news
agency.Asked about fears voiced by some countries in the region, such as Japan,
about China's military spending, Qin Gang, the Foreign Ministry
spokesperson, said the PLA was not made up of "boy scouts with spears"."Some foreigners always expect China to be a boy scout. In that way, how
can we safeguard national security and world peace? Even as a scout
grows up, his former dress and shoes will not fit anymore and thus he
will have to change into bigger ones," he said.The spending hike will, nevertheless, likely raise concerns, analysts
say, as the gulf in military capabilities continues to widen even as
territorial disputes remain unresolved.Brig. (Retd) Sahgal said with the increased spending, China's "coercion index" vis-Ã -vis countries like India had increased."In India, unfortunately, the last decade has been a lost decade," he
said. "The Chinese are now increasing their budget by the total Indian
defence budget. In the past four years, there hasn't been a single
purchase, or modernisation of the three services, while our equipment is
getting depleted. What we are seeing," he added, "is that we are now
getting out of their league".
Friday, 21 February 2014
Ukraine President gave in to protesters demands, deal signed
Yielding to hard Western pressure, Ukraine’s embattled President Viktor
Yanukovych has agreed to call early presidential election, cede key
powers to Parliament and form a coalition caretaker government.
Ukrainian and Russian analysts described Mr Yanukovych’s decision as
total surrender.
The Ukrainian leader made the announcement on his website after marathon
talks with opposition leaders brokered by the Foreign Ministers of
Germany, France and Poland. The talks, which began on Thursday, went
through the night and resumed on Friday. Russia was represented at the
talks by human rights ombudsman Vladimir Lukin.
The three opposition leaders, Arseny Yatsenyuk, Vitaly Klitschko and
Oleh Tyahnibok, approved the deal after “consulting” protesters in the
streets.
Poland’s Foreign Minister Radoslaw Sikorski called the agreement “a good
compromise,” but analysts said Mr Yanukovych merely accepted the
opposition’s demands.
“What compromise are you talking about? Yanukovych has signed an act of
capitulation,” wrote Vladimir Kornilov, a Ukrainian political scientist.
“The West has dictated its terms of capitulation to Yanukovych, who did
not even try to resist,” said Vigen Akopyan, editor of Russia’s Regnum
online news service.
Mr Yanukovych gave no timeline for the proposed steps, but Vladimir
Oleynik, a senior lawmaker from the President’s Party of the Regions,
said that within the next 48 hours the Parliament should vote on
reverting to the 2004 Constitution, which took away from President and
gave to Parliament the right to appoint Prime Minister and the cabinet.
The Constitution was scrapped after Mr Yanukovych won presidential
elections in 2010.
According to Mr Oleynik, a coalition government is to be formed within
10 days and new presidential elections will be held before the end of
the year, about six months earlier than scheduled.
It was not immediately known whether radical protesters from the Right
Sector group would accept the agreement between Mr Yanukovych and
leaders of the Parliamentary opposition. The radicals wrecked a truce
negotiated on Tuesday and unleashed deadly violence in Kiev.
Over the past three days 77 people have died and 580 have been wounded
in clashes between protesters and police, according to Ukraine’s Health
Ministry. The Interior Ministry said 16 police officers had been killed
and 130 suffered gunshot wounds.
Late on Thursday the Ukrainian Parliament voted to call off an
“anti-terrorist operation” the security forces had launched earlier this
week to clear central Kiev from protesters. By Friday afternoon all
riot police were withdrawn from the scene of recent fighting.
The agreement reached in Kiev is a setback for Moscow, which had been
urging Mr Yanukovych to get tough with the protesters and do not let
them “wipe their feet on the authorities like a doormat.”
Akash medium-range missile test-fired

The
indigenously-developed missile, with a 27 km range and an effective
ceiling of 15 km, was test-fired from the Integrated Test Range of
Chandipur in the coastal district of Balasore, 230 km from Bhubaneswar.
“It
was test fired by the scientists of (state-run missile system
manufacturer) Bharat Dynamic Limited and (state run defence electronics
company) Bharat Electronics for the armed forces,” test range director
M.V.K.V. Prasad told IANS. “The test was successful,” he added.
The
700-kg all-weather missile can carry a 60-kg warhead at speeds of up to
Mach 2.5. It can operate autonomously and simultaneously engage and
neutralise different aerial targets.
It can be launched from static or mobile platforms, enabling flexible deployment by the armed forces.
Preparation are underway for a few more tests of the missile from the same base within next fortnight, Mr. Prasad said.
Tuesday, 11 February 2014
INS Arihant all set for sea trials
India’s first indigenously built nuclear-powered ballistic missile
submarine, INS Arihant would be going to sea trials within “a few weeks
or months” as its preliminary harbour acceptance trials are over and
various systems, including nuclear propulsion, have proceeded
satisfactorily and as per the time schedule.
The submarine would undergo sea trials, during which all the systems,
including its ballistic missiles, would be tested before it is finally
commissioned into the Indian Navy, Assistant Chief of Naval Staff Rear
Admiral L.V.S. Babu, said here on Tuesday.
Incidentally, INS Arihant, which is the lead ship of India's
Arihant-class of nuclear-powered ballistic missile submarines, would
also figure on the Indian Navy tableaux at this year’s Republic Day
Parade.
The sub-surface ballistic nuclear missile (SSBN) submarine would be
“indigenously designed, built, operationalised and maintained,” said
Rear Admiral Babu, adding that “there were no hiccups in the progress of
harbour trials” at Vishakhapatnam. Once the sea trials, which would
test the capability of various systems in real deep sea scenario, are
over the Navy would announce its arrival, he said, as it would be a
“stabilising force in the Indian Ocean”.
Stating that “it is a fact that we (Indian Navy) would like to have more
submarines”, the Rear Admiral denied that clearance for three SSBNs has
been obtained. “That is our wish, it has not been cleared,” he said,
adding that finance and infrastructure were major considerations.
He also made a mention of the Scorpene submarines, being developed at
the Mazagaon docks, and said these are scheduled to be inducted from
2016. “We would be looking at inducting one submarine per year till we
have six of them in the fleet.”
China building second aircraft carrier
A senior Communist Party official in
northeastern China said that China was at work on a home-built aircraft
carrier and had plans to operate a fleet of at least four of the
vessels, a Hong Kong newspaper reported.
The comments by Wang Min, the party secretary
of Liaoning Province, are an official indication of what outside
observers have long predicted: that China’s commissioning of a
refurbished aircraft carrier in 2012 was only a first step in its effort
to develop its capacity to build and sail its own aircraft carriers.
According to the Hong Kong-based Ta Kung Pao,
Mr. Wang said on Saturday that China’s second aircraft carrier was
being built at a shipyard in the coastal city of Dalian and should be
completed in six years. The newspaper has ties to the Communist Party,
although it is not an official mouthpiece.
China’s first aircraft carrier, named Liaoning for the city where it was refurbished, was purchased from Ukraine and towed to China, where it underwent years of work before joining the Chinese fleet in 2012. Late last year, while on exercises in the South China Sea, a Chinese support vessel sailing with the Liaoning had a near collision with a United States Navy cruiser, the Cowpens, that had apparently been monitoring the Chinese flotilla.
China’s first aircraft carrier, named Liaoning for the city where it was refurbished, was purchased from Ukraine and towed to China, where it underwent years of work before joining the Chinese fleet in 2012. Late last year, while on exercises in the South China Sea, a Chinese support vessel sailing with the Liaoning had a near collision with a United States Navy cruiser, the Cowpens, that had apparently been monitoring the Chinese flotilla.
The Ta Kung Pao report
has since been removed from the newspaper’s website, and reposts
carried on the websites of domestic Chinese media outlets have also been
deleted.
Other mainland media sought to downplay Mr.
Li’s statement. News of China’s aircraft carrier “isn’t worth fussing
over,” Li Jie, a professor at the People’s Liberation Army’s Naval
Military Studies Research Institute, wrote in Global Times, a newspaper run by the Communist Party’s People’s Daily Group.
Mr. Li argued that the United States, with 11
aircraft carriers, had attempted to play up China’s naval development
as a threat. India, with two aircraft carriers and a third under
construction, also has an advantage over China, he wrote. “We should
confidently develop aircraft carriers and promptly respond to the
outside world’s questions,” he wrote, “so that this ‘China threat
theory’ won’t find a market in international society.”
Last year the United States Department of Defense predicted in its annual report
on China’s military development that China would “likely build multiple
aircraft carriers over the next decade,” with the first of those
becoming operational before 2020.
INS Vikramaditya enters Indian Navy's area of operation
It was a sight to behold. As India’s newest aircraft carrier INS
Vikramaditya entered the Indian Navy’s area of operation in north
western Arabian Sea, accompanied by three other vessels, it was
rendezvoused — in Naval parlance RVed — with the Western Fleet that had
gone all the way from Mumbai to receive it.
INS Vikramaditya, which was accompanied by INS Trikand, which is a
Talwar class frigate, INS Delhi which is a Delhi class destroyer and INS
Deepak, the fleet tanker, fired ceremonial guns to salute the flag of
the fleet commander Rear Admiral Anand Chawla, who was leading the
flotilla of the Western Fleet, that also comprised aircraft carrier INS
Viraat.
The other ships besides INS Viraat which had gone to receive INS
Vikramaditya included two Delhi class destroyers, three Trishul class
stealth frigates, a Godavari class frigate and a couple of offshore
vessels.
All this happened about 1200 nautical miles from the country's shores on
New Year’s eve and thereafter all the aircraft carriers, frigates and
destroyers together set sail for India.
INS Vikramaditya, which was commissioned into the Indian Navy on
November 16 last at the North Russian shipyard of Sevmash at
Severodvinsk, is now headed for its home port at Karwar in Karnataka
where it is scheduled to reach in a week’s time.
Commanded by Captain Suraj Berry, INS Vikramaditya -- which took eight
years to refurbish at the Russian yard -- would reach Karwar on
completing a near 8500 nautical mile journey.
On reaching Karwar, the aircraft carrier would re-equip and prepare and
get ready for the next phase which would be its integration with the air
wing, comprising about 30 Mig 29K aircraft and six Kamov Ka-31 “Helix”
reconnaissance and anti-submarine helicopters.
It would take around four to six months for the full integration of the
aircraft carrier after which it will become the spearhead of the carrier
battle group. During this period, the aircraft carrier would also be
equipped with surface-to-air missile (SAM) and close-in weapon system
(CIWS) to safeguard it from aerial attack.
At the time of commissioning of INS Vikramaditya Indian Navy Chief
Admiral D.K. Joshi had indicated that Indian naval fighter pilots would
be certified to carry out flying operations from the carrier deck within
weeks of the carrier’s arrival in India.
While a batch of combat fliers from ‘Black Panther’ squadron has
undertaken simulator training in Moscow, before the flying operations
from the carrier deck, they are also scheduled to perfect take-off and
landing on the shore-based test facility (SBTF) at INS Hansa in Goa.
Thursday, 29 August 2013
Iran to work with Russia to stop strike on Syria
Iranian President Hassan Rouhani said his country will press efforts to ward off military action by the U.S. and its allies against the Tehran-backed regime of Syrian President Bashar Assad, Iranian state TV reported on Thursday.
The report said the remarks came late Wednesday during a phone conversation between Mr. Rouhani and his Russian counterpart Vladimir Putin.
Mr. Rouhani was quoted as saying “military action will bring great costs for the region” and “it is necessary to apply all efforts to prevent it.”
According to the report, he said both Iran and Russia would work in “extensive cooperation” to prevent any military action against Syria. Rouhani also called such military action an “open violation” of international laws.
While condemning chemical weapons, Mr. Rouhani was quoted as saying, “Early judgment can be dangerous, before clarification” can be made of allegations that Syria used the weapons.
“Western countries have found some excuse to prepare the ground to weaken the stance of Syria in further talks” after the Syrian government has won the upper hand in confronting rebels, Mr. Rouhani said.
The president also predicted regional consequences for any military strike.
“Syria has a strategic and sensitive situation, and any sort of military invasion would lead to instability in the entire Middle East,” he said.
Sunday, 31 March 2013
Russia’s war games catch West off guard
Russia’s unscheduled war games in the Black Sea that
began on Thursday without prior notice have taken the West by surprise,
with NATO calling on Moscow to show greater openness.
President
Vladimir Putin issued a snap order to launch large-scale naval and air
manoeuvres in the Black Sea at 4 a.m. on Thursday when he was on the way
back from the BRICS summit in Durban, South Africa.
On
Friday Mr. Putin watched sea landing operations as part of the surprise
three-day drill that involves 36 warships, 20 aircraft and 7,000
troops.
The Kremlin said the main goal of the
exercise was to check “combat readiness and coordination among the
various branches of the Armed Forces”.
Russia’s
unannounced military muscle flexing has caused unease in Brussels. The
war games are being held in a strategic region within striking distance
of several NATO countries and Georgia, with whom Russia fought a war in
2008.
“In future it would be useful to make our
relations more predictable and ensure maximum transparency,” the
Interfax news agency quoted NATO Secretary-General Alexander Vershbow as
commenting on the Black Sea drill.
A ranking NATO diplomat told the Russian business daily
Kommersant
that even though Russia was not obliged to notify NATO of the war games, “partners should not act like this”.
Mr.
Putin’s press secretary Dmitry Peskov said Russia was under no
obligation to give advance warning of military exercises as long as they
involved fewer than 7,000 ground troops.
Moreover, naval manoeuvres do not require any notification at all.
The current military drill is the second snap manoeuvre Russia has conducted this year after a break of 20 years.
Largest ever public cyber attack jams Internet
A squabble between a group fighting spam and a Dutch
company that hosts websites said to be sending spam has escalated into
one of the largest computer attacks on the Internet, causing widespread
congestion and jamming crucial infrastructure.
Millions
of ordinary Internet users have experienced delays in services or could
not reach a particular website for a short time.
However,
for the Internet engineers who run the global network, the problem is
more worrisome. The attacks are becoming increasingly powerful, and
computer security experts worry that if they continue to escalate,
people may not be able to reach basic Internet services, like e-mail and
online banking.
The dispute started when the
spam-fighting group, called Spamhaus, added the Dutch company
Cyberbunker to its blacklist, which is used by e-mail providers to weed
out spam.
Cyberbunker, named for its headquarters, a
five-story former Nato bunker, offers hosting services to any website
“except child porn and anything related to terrorism”, according to its
website.
A spokesman for Spamhaus, which is based in
Europe, said the attacks began March 19 but had not stopped the group
from distributing its blacklist.
Patrick Gilmore,
chief architect at Akamai Networks, a digital content provider, said the
attacks, which are generated by swarms of computers called botnets,
concentrate data streams that are larger than the Internet connections
of entire countries. He likened the technique, which uses a long-known
flaw in the Internet’s basic plumbing, to using a machine gun to spray
an entire crowd when the intent is to kill one person.
The
attacks were first mentioned publicly last week by Cloudflare, an
Internet security firm in Silicon Valley that was trying to defend
against the attacks and as a result became a target.
“These
things are essentially like nuclear bombs,” said Matthew Prince, chief
executive of Cloudflare. “It’s so easy to cause so much damage.”
The
so-called denial of service, or DDoS, attacks have reached previously
unknown magnitudes, growing to a data stream of 300 billion bits per
second. “It is a real number,” said Mr. Gilmore. “It is the largest
publicly announced DDoS attack in the history of the Internet.”
Spamhaus,
one of the most prominent groups tracking spammers on the Internet,
uses volunteers to identify spammers and has been described as a
vigilante group.
In the past, blacklisted sites have
retaliated against Spamhaus with denial-of-service attacks, in which
they flood Spamhaus with traffic requests from personal computers until
it falls offline. But in recent weeks, the attackers hit back with a far
more powerful strike that exploited Internet’s core infrastructure,
called the Domain Name System, or DNS.
That system
functions like a telephone switchboard for the Internet. It translates
the names of websites like Facebook.com or Google.com into a string of
numbers that the Internet’s underlying technology can understand.
Millions of computer servers around the world perform the actual
translation.
In the latest incident, attackers sent
messages, masquerading as ones coming from Spamhaus, to those machines,
which were then amplified drastically by the servers, causing torrents
of data to be aimed back at the Spamhaus computers.
When
Spamhaus requested aid from Cloudflare, the attackers began to focus
their digital ire on the companies that provide data connections for
both Spamhaus and Cloudflare.
Questioned about the
attacks, Sven Olaf Kamphuis, an Internet activist who said he was a
spokesman for the attackers, said in an online message, “We are aware
that this is one of the largest DDoS attacks the world had publicly
seen.”
Mr. Kamphuis said Cyberbunker was retaliating
against Spamhaus for “abusing their influence”. “Nobody ever deputised
Spamhaus to determine what goes and does not go on the Internet,” said
Mr. Kamphuis. “They worked themselves into that position by pretending
to fight spam.”
A typical denial of service attack
tends to affect only a small number of networks. But in the case of a
Domain Name System flood attack, data packets are aimed at the victim
from servers all over the world. Such attacks cannot easily be stopped,
computer security experts say, because those servers cannot be shut off
without halting the Internet.
Friday, 1 March 2013
Russia to re-establish permanent naval presence in the Mediterranean
Russia will re-establish its permanent naval presence in the
Mediterranean, more than two decades after it withdrew from the region,
Russian military sources said.
A naval task force, drawn from the Black Sea Fleet, will be deployed for
round-the-year duty in the Mediterranean in 2015, a General Staff
official told Russian news agencies on Monday.
“The force will accomplish scheduled and urgent missions on the
Mediterranean theatre of operations, including deterrence of threats to
Russian national and military security originating from that region,”
the military official said.
The deployment of a new naval task force was practised during the
largest war games of Russia’s three naval fleets in the Black Sea and
the Mediterranean last month, he added.
The Mediterranean task force will be modelled on a Soviet Navy group
that used to patrol the region during the Cold War, the official
revealed.
The Fifth Operation Squadron of the Soviet Navy was set up in the
Mediterranean in 1967, shortly after the six-day Arab-Israeli war.
Russian historians believe the move deterred the United States from
using its Sixth Fleet on the side of Israel.
The Fifth squadron, numbering up to 80 warships at its peak strength, was disbanded in 1992.
Petrol price hiked in India
Petrol price was on Friday hiked by Rs. 1.40 per litre, the second big increase in rates in as many weeks.
A rise in international oil prices and depreciation in rupee have
necessitated a Rs. 1.40 per litre increase in price of petrol with
effect from Friday midnight, said a statement by Indian Oil Corporation
(IOC).
The hike is excluding local sales tax or VAT and the actual increase in
rate for consumers will be higher after including the tax incidence.
The previous petrol price hike was Rs. 1.50 a litre excluding VAT on February 16, 2013.
The increase in price for consumers in Delhi will be Rs. 1.68 per litre
and the new rate will be Rs. 70.74 a litre from Saturday as against Rs.
69.06 a litre currently.
“The price increase has been necessitated by two factors — the
international gasoline (petrol) prices have increased from $128.57 per
barrel to $131.00 a barrel since the last revision; and the rupee has
depreciated from Rs. 53.43 to Rs. 54.15 per dollar during the period,”
the statement said.
Petrol in Mumbai will cost Rs. 77.66 a litre as against Rs. 75.89 per litre currently.
“The trends of international oil prices and rupee-dollar exchange rate
shall be closely monitored and the same shall be reflected in future
price changes,” said IOC, the nation’s largest oil retailer.
Apart from losses on sale of petrol, oil firms are suffering
under-recovery (revenue loss) on sale of diesel of Rs. 11.26 per litre,
kerosene of Rs. 33.43 a litre and LPG of Rs. 439 per cylinder. The loss
on diesel has risen from Rs. 10.72 a litre on February 16, when its
rates were increased by 45 paise excluding VAT.
IOC said it will end the fiscal with a revenue loss of Rs. 86,500 crore
on sale of diesel, LPG and kerosene. The industry, comprising of IOC and
two other state firms, will be Rs. 163,500 crore during current year.
Following are the revised prices of petrol at Indian Oil Corp (IOC) petrol pumps in four metros.
Rates at pumps of Bharat Petroleum Corp Ltd (BPCL) and Hindustan Petroleum Corp Ltd (HPCL) vary by a few paise.
| Region | Current price | Revised Price |
| Delhi | 69.06 | 70.74 |
| Kolkata | 76.59 | 78.34 |
| Mumbai | 75.89 | 77.66 |
| Chennai | 73.95 | 72.17 |
Saturday, 16 February 2013
Meteor strike in Russia
The meteor which closely missed the Russian city of Chelyabinsk on
Friday is likely to go down in history as the largest celestial body to
have hit the Earth over the past hundred years.
NASA scientists said the object was a tiny asteroid that released 300 to
500 kilotons of energy when it exploded, which is roughly equivalent to
20 atomic bombs of the type dropped on Hiroshima and Nagasaki. This
would make the Chelyabinsk meteor the largest since 1908 when a meteor
hit Tunguska in Siberia, levelling an estimated 80 million trees. The
energy of the Tunguska blast is estimated to have been up to 50
megatons.
Scientists believe the Chelyabinsk meteor was about 17 metres across and
weighed 10,000 tons. Shock waves from its explosion over Chelyabinsk
wounded 1,200 people and shattered doors and windows in 3,724 apartment
houses, 671 schools and 235 hospitals and outpatient clinics. What saved
the city was that the explosion occurred 30 to 50 km above the ground.
Chelyabinsk governor Mikhail Yurevich said it was a very close brush for the region with a population of 3.5 million people.
It was the biggest celestial body ever observed on its flight through
the atmosphere and there was a good chance of finding its fragments
before they get contaminated by exposure to the elements.
Divers on Saturday searched the bottom of frozen Lake Chebarkul about 80
km from Chelyubinsk where a chunk of the meteor is believed to have
plunged, but found nothing.
Scientists said the Chelyabinsk meteor's close miss should serve a
wake-up call for the international community to set up a system for
monitoring meteors of similar size and providing advance warnings to the
population.
“Today we can spot about 10 percent of such objects as the Chelyabinsk
meteor in the solar system,” said Dr. Malkov. “Ninety percent go
undetected and some of them may crush on Earth any time.”
Politicians backed calls for greater international effort to combat cosmic threats.
“Instead of building a European missile defence system, the United
States should join us and China in creating the AADS – the Anti-Asteroid
Defence System,” said Alexei Pushkov, head of the International
Committee of the State Dume, the lower house of the Russian Parliament.
Monday, 11 February 2013
Pope Benedict XVI resigns
Pope Benedict XVI pronounced at the Vatican on
Monday said he had decided to resign. This is the first time a Pope has
decided to step down in 600 years. He said he was resigning in “full
freedom” ,which is necessary ,and would devote the rest of his life to prayer. The Pope said
he no longer had “the strength of body or mind” to “fully serve the
Petrine Ministry.
Pope Benedict XVI, formerly known as Cardinal Joseph Aloisius Ratzinger
before he assumed Pontifical office on 19 April 2005, made the
declaration in Latin, during a consistory in the Vatican.
The Holy See’s spokesperson, Father Federico Lombardi said the
resignation would go into effect at the end of the month. “The Pope has
announced he will give up his ministry at 8 pm on the 28th of February.
That is when the period known as “sede vacante” or the Empty Chair will
commence”. The next Pope will be elected before Easter which this year
falls on March 31. The voting could well begin during Holy Week which
begins on March 24.
Friday, 8 February 2013
10 new species of freshwater earthworms
Scientists have discovered 10 new species of semi-aquatic freshwater earthworms in river systems in Thailand.
According to a report published in the journal "ZooKeys",
the earthworms in the genus Glyphidrilus occur in a wide range of
natural freshwater habitats which include rice fields, where they might
play an important role in the development of organic farming.
The newly-discovered worms have a rounded body tip, while the end is
square shaped. When twisted, the posterior end, which is normally above
the soil surface, forms U-shaped channels. These are used to allow water
circulation down the burrow.
This is probably an evolutionary adjustment that ensures oxygen
transport to the deeper surface of the worms, while their bodies remain
in the burrows.
Another peculiar feature are the so-called “wings”, or the expanded part
of epidermis near the body tip. The function of the wings is still
unknown to scientists, but it has been suggested that they evolved to
assist breathing in such aquatic habitats.
Tuesday, 20 November 2012
ICC Test rankings rise for Ojha and Pujara
Indian left-arm spinner Pragyan Ojha, who starred with a
nine-wicket haul in the first Test against England, rose nine places to get to the top-five of the latest ICC rankings issued in Dubai on
Tuesday 20/11/2012.
The 26 year old helped India win by nine wickets in Ahmadabad to take
a 1-0 lead in the four-match series.
The other Indian in the top-20 are Zaheer Khan (up one place to 14th) R Ashwin (steady at 18th).
Cheteshwar Pujara, who struck a doubled hundred in the Ahmadabad Test,
has jumped 35 places to the 24th position.England
captain Alastair Cook, who scored a 176 in his side’s second
innings, has returned to the top 10 by rising four places to seventh.Matt
Prior, on the other hand, has become the fifth England batsman inside
the top 20 after achieving a career-best ranking of 18th.
Indian opener Virender Sehwag is now in 22nd position after gaining one place following his 23rd Test century.
Sunday, 18 November 2012
Israel threatens to send Gaza back to Middle Ages
Israel struck Gaza enclave with a barrage of missiles from land and sea for a fifth day on Sunday, killing at least three children, targeting media houses.At least eight Palestinian journalists were injured when air raids hit buildings housing local media offices. One of the injured Palestinian journalists had to have a leg amputated. Medics said three children were killed, one of them as young as 18 months old, when a refugee camp in central Gaza became the target of Israeli attacks. The attacks also wounded 12 people. Even as media reports said efforts for a ceasefire were on, Prime Minister Benjamin Netanyahu stated that Israel was ready to "significantly expand" its operation in Gaza. Israel's Interior Minister went a step ahead when he said "the goal of the operation is to send Gaza back to the Middle Ages".It said that its navy had also shelled Gaza. Egypt, meanwhile, stepped up efforts to achieve a truce as it hosted Palestinian and Israeli officials for ceasefire talks. French diplomat Fabius meanwhile termed it "an emergency situation" and pleaded that "war must be avoided". While US President Barack Obama declared that he respects Israel's right to defend itself, British Foreign Secretary William Hague warned Israel that a ground assault by it may cost it international support. Egyptian President Mohammed Mursi also warned that an Israeli ground invasion would have "serious repercussions". He said Egypt would never accept it "and neither will the free world".
Saturday, 17 November 2012
Tycho Brahe not poisoned by mercury
Two years after Tycho Brahe was removed from his grave in Prague, chemical analyses of his corpse show that mercury poisoning did not kill the prolific 16th-century astronomer. The results should put to bed rumors that Brahe was murdered when he most likely died of a burst bladder. He is known for making the accurate measurements of stars and planets without the aid of a telescope, proving that comets are objects in space and not in Earth's atmosphere. Analyses of Brahe's teeth are not yet complete, tests on his bones and beard hairs show that mercury concentrations in his body were not high enough to have killed him, the team of Danish and Czech researchers said. Brahe's mercury levels even dropped to the low end of normal in the weeks leading up to his death, tests on Brahe's beard revealed.
"In fact, chemical analyses of the bones indicate that Tycho Brahe was not exposed to an abnormally high mercury load in the last five to 10 years of his life," said researcher Kaare Lund Rasmussen, an associate professor of chemistry at the University of Southern Denmark.
Thursday, 26 April 2012
RISAT-1 satellite launched
The PSLV-C19, the newest in the series of polar satellite launch
vehicles of the Indian Space Research Organisation (ISRO), burst off the
launch-pads of Sriharikota in the wee hours of Thursday on its space
mission of placing indigenously developed Radar Imaging Satellite the RISAT-1 in a polar circular orbit.
After a customarily tense countdown at the ISRO's Satish Dhawan Space Center in Sriharikota, at precisely 5.47 a.m., the launch vehicle’s core
stage igniters and set of six strap-on motors ignited within seconds of
each to signal the successful lift-off of the PSLV-C19 with the RISAT
-1
The RISAT-1 with a payload of 1858 kg, the heaviest satellite being
launched yet by the PSLV, is a state-of-the-art Active Microwave Remote
Sensing Satellite carrying a Synthetic Aperture Radar (SAR) payload that
will operate in the C-band. In simpler terms, the RISAT-1 can beam back
imaging of the earth surface features during day and night and under
all imagined weather conditions. The SAR which gives the RISAT-1 its
magic lens also makes it superior to the generation of optical remote
sensing satellites in terms of clearer imaging at all times and under
any condition.
Once the PSLV-C19 successfully completed each of the four stages of its
flight in a span of 18 minutes and reported normal parameters,
congratulatory scenes broke out at the Mission Directorate at
Sriharikota.
Addressing the team of scientists and engineers, ISRO Chairman K.
Radhakrishnan said he was happy to announce that the PSLV-C19 was a
“grand success” and had injected into polar orbit India's first Radar
Imaging Satellite. source:The Hindu, ISRO
Wednesday, 25 April 2012
Chelsea beats Barcelona
Chelsea are through to the Champions League final after a draw against Barcelona in their semi-final second-leg encounter was enough to hand them a 3-2 aggregate victory over the holders.
Roberto Di Matteo's team defended brilliantly throughout, and will now travel to Munich on May 19 despite playing the majority of the match with 10 men.The Catalans appeared to be home and dry after goals by Sergio Busquets and Andres Iniesta either side of a John Terry red card appeared to put the Blues out of the competition before half-time.However, Ramires put the tie back into Chelsea's hands with a fantastic effort just before the interval.Lionel Messi missed a penalty early in the second-half, and the Blues combined superb defending with a bit of luck, before Fernando Torres put the icing on the cake by finishing off a counterattack at the death.
The game plan from Di Matteo was simple as Chelsea, much as they had done in the first leg, looked to defend deep in numbers and relieve pressure on the counter whenever they could.
Barca continued to control the game, and opened Chelsea up once more with a delightful passing move, with only the legs of Petr Cech preventing Messi from opening the scoring.
Cesc Fabregas and Didier Drogba each found the side netting before Javier Mascherano sent an unlikely 25-yard piledriver just over the bar as the home side continued to search for a way through.
The hosts were forced to bring on Dani Alves after 26 minutes for Gerard Pique, who failed to recover sufficiently from an earlier clash of heads with Victor Valdes.
The Brazilian played a part in the opener 10 minutes after his arrival, releasing Isaac Cuenca down the left, whose cutback evaded multiple bodies before Busquets tapped in.
However, Chelsea’s advantage was left intact as Messi smacked the spot-kick off the crossbar.
But it was proving to be the same story as the first leg, as Chelsea’s doggedness at the back was just enough to keep Guardiola’s men at bay.
They were almost caught out 10 minutes before the end though, but Messi could only strike the post after being put clear with only the keeper to beat.
But the Catalans were out of ideas in attack, and were finished for good by substitute Torres in the final minute of injury time. With almost every Barca player committed in the opposition half, the Spaniard latched onto a pass from defence by Ashley Cole, rounded Valdes and fired home.
Chelsea continue their incredible renaissance under Di Matteo, and will await either Real Madrid or Bayern Munich in the final at the Allianz Arena on May 19.
India tops in spam email
India is now the top
spam-spewing nation on the planet overtaking America, according to a
report of the security firm Sophos which ranks nations by the amount of
junk mail routed through computers in each country.
The report said that some ten per cent of all junk mail sent across the
web came from or passed through computers in India with America in the
second place at 8.3 per cent and South Korea third at 5.7 per cent.
It attributed India’s dramatic rise up the ``spam chart’’ partly to the inexperience of many of first-time internet users. The report reckoned that about 80 per cent of all junk email was routed
through PCs hijacked by hi-tech criminals who used computer viruses to
seize control of the machines. Once a computer was under their control
they used them to send out mail on their behalf, typically relaying it
from another nation.
New species of crab discovered in the Philippines
Four new species of
crab have been discovered in the Philippine island of Palawan. And one of them has an unusually bright purple shell.National Geographic reports that the crab may use its uniquely colored shell to help identify its own kind."It is known that crabs can
discriminate colours. Therefore, it seems likely that the colouration
has a signal function for the social behaviour, e.g. mating," Hendrik
Freitag of the Senckenberg Museum of Zoology in Dresden, Germany told AFP."The particular violet coloration
might just have evolved by chance, and must not necessarily have a very
specific function or reason aside from being a general visual signal
for recognition,"said Freitag. Freitag's report on
the new species of crabs was published in the Raffles Bulletin of
Zoology.The crabs are quite small in stature, each from about an inch to two inches wide.
While many species of crab are
known by their red rust hues, some differently colored crab species are
quite popular around the world, perhaps most notably the Chesapeake blue crab.
Freitag said the purple crabs
likely have several natural predators, including some humans in remote
areas. But he said the greatest threat to the species is ongoing forest
clearing for farming, mining and home building.
Thursday, 19 April 2012
Cautious Response From China Concerning Agni V
China on Thursday said the two countries are not rivals and enjoy “sound” relations though the sources in the Chinese establishment feel that the launch can give rise to another round of arms race in the region.
“China has taken note of reports on India’s missile launch. The two countries have sound relationship.
“During the (recently held) BRICS meeting (in Delhi) the leadership had
consensus to take the relationship further and to push forward bilateral
strategic cooperative partnership,” Chinese Foreign Ministry spokesman
Liu Weimin told a media briefing in Beijing when asked about the launch.
In Delhi, the diplomatic sources in the Chinese embassy said the “Agni-V
launch can give rise to another round of arms race in this part of the
world.”
Asked whether China was concerned as most of the country would come
under the Agni’s range, Mr. Liu said in Beijing that “both the countries
are emerging powers. We are not rivals. We are cooperative partners. We
should cherish the hard earned momentum of cooperation.”
To another question whether it would affect the regional stability, he
said “we hope Asian countries can contribute to peace and stability.”
However, China’s state-run Global Times came out with a strong
editorial criticising the launch, claiming that the Chinese nuclear
power is more “stronger and reliable” and New Delhi has “no chance” to
catch up.
Agni-5 Launched
India successfully demonstrated its Inter-Continental Ballistic Missile (ICBM) capability by launching its most powerful and longest range missile, Agni-V, from the Wheeler Island off the Odisha(Orissa) coast.
The 17-metre-long surface-to-surface ballistic missile lifted off
majestically from a rail mobile launcher at 8.04 a.m. After a flight
time of 20 minutes, the missile re-entry vehicle impacted the per-designated target point more than 5,000 km away in the Indian Ocean
with a high degree of accuracy.
V. K. Sarawat who is Scientific Adviser to the Defence Minister told that with that missile launch, India has
emerged as a major missile power. It has joined a select group of
countries possessing technology to design, develop, build and
manufacture long range missiles of this class and technological
complexity.”
It was a flawless flight and the three stages jettisoned on time. The
third stage fired the re-entry vehicle into the atmosphere at perfect
angle at an altitude of 100 kms. The pay load withstood the searing
temperatures of around 3000 degree Celsius.
This is the first time India has test fired a three-stage, all
solid-fuelled missile. Many new technologies including the state of art
navigation system and carbon composite rocket motor casings were tested
in the missile. All the radar telemetry and electro optical stations
along the coast besides three ships tracked the flight trajectory of the
missile and final terminal event at the impact point.
The fireball that erupted when the dummy payload hit the waters of the
Indian Ocean was recorded by the cameras on board the ships stationed
around the impact point. The missile weighed 50 tonnes and is capable of
carrying a nuclear war head weighing 1.1 tonne.
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