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Nobel prize in physics awarded to three physicists for discovery of gravitational waves

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Phy-nobel

[vc_row][vc_column][vc_column_text]The phenomenon was anticipated by Albert Einstein a century ago

Three American physicists Rainer Weiss, Barry Barish and Kip Thorne on Tuesday won the Nobel Prize in Physics for discovering the gravitational waves, ripples in the fabric of spacetime, a phenomenon anticipated by Albert Einstein a century ago.

Gravitational waves are extremely faint ripples in the fabric of space and time, generated by some of the most violent events in the universe.

The Royal Swedish Academy of Sciences in Stockholm announced that Rainer Weiss will be awarded one half of the 9m Swedish kronor (£825,000) prize, whereas  Kip Thorne and Barry Barish will share the other half of the prize.

The credit for discovering the gravitational waves will go to all three scientists who led the Laser Interferometer Gravitational-Wave Observatory, or Ligo, experiment, which enabled them to observe gravitational waves in September 2015.

Weiss, emeritus professor of physics at Massachusetts Institute of Technology is an experimentalist who made major contribution in the concept design, funding and the construction of the observatory.

Kip Thorne, who is the professor of theoretical physics at California Institute of Technology made crucial predictions of how to identify the gravitational wave and how it would look.

Barry Barish,  a former particle physicist at California Institute of Technology (now emeritus professor) is credited for getting the experiment off the ground. The scientist saw the project through – it was in danger of being cancelled when he took over as the second director of Ligo in 1994.

Ronald Drever, a Scottish physicist, who alongside Weiss and Thorne played a leading role in developing Ligo, died in March from dementia less than 18 months after gravitational waves were first detected. The Nobel prize is not normally awarded posthumously.

The Ligo is designed to detect a distortion of a thousandth of the diameter of an atomic nucleus across a 4 Km length of laser beam. The phenomenon detected was the collision of two black holes. With the most sophisticated detector, the scientists listened for 20 thousandths of a second as the two giant black holes, one 35 times the mass of the sun, the other slightly smaller, circled around each other. The two objects had begun by circling each other 30 times a second. By the end of the 20 millisecond snatch of data, the two had accelerated to 250 times a second before the final collision and a dark, violent merger.

Nobel Prize was first awarded in 1901 for achievements in science, literature and peace, in accordance to the will left by Swedish business tycoon Alfred Nobel who had bequeathed much of the fortune he generated from his discovery of dynamite.

Among the science prizes, physics has often taken centre stage with laureates including scientific superstars such as Einstein, Niels Bohr and Marie Curie, one of only two women to win a Nobel Prize for Physics.[/vc_column_text][/vc_column][/vc_row]

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Sri Lankan Minister Douglas Devananda says statements on reclaiming Katchatheevu island from Sri Lanka have no ground

Devananda told the media on Thursday that it is not unusual to hear such claims and counterclaims about Katchatheevu as elections are taking place in India.

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Sri Lankan Minister Douglas Devananda has said the statements from some political leaders in India on reclaiming Katchatheevu from the island nation have no ground. He told the media on Thursday that it is not unusual to hear such claims and counterclaims about the strategic island as elections are taking place in India.

The Sri Lankan Minister said he thought India is acting on its interests to secure this place to ensure Sri Lankan fishermen would not have any access to that area and that Sri Lanka should not claim any rights in that resourceful area. According to the 1974 agreement, Devananda said Indian and Sri Lankan fishermen can go fishing in the territorial waters of both countries until the pact was reviewed and amended in 1976.

The amended agreement resulted in fishermen from both countries being barred from fishing in neighboring waters. India’s ministry of External Affairs (MEA) on Thursday steered clear of the row surrounding Katchatheevu island. To a volley of questions on the Katchatheevu issue, MEA spokesperson Randhir Jaiswal reffered to External affairs Minister S Jaishankar’s recent comments on the matter.

He said he would like to talk about the issue that has been raised. He added the External Affairs minister has spoken to the press here in Delhi and also in Gujarat and has clarified all the issues. He said everyone should look into the press engagements and they would find the answers to their questions there.

The remarks from Devananda, a Sri Lankan Tamil, came days after the Narendra Modi government accused the Congress and its ally DMK in Tamil Nadu of overlooking national interests by handing over Katchatheevu island to Sri Lanka in 1974. The BJP has also been slamming the 2 parties for not ensuring the rights of the fishermen wanting to fish in waters around the island.

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US reiterates its call for fair, transparent, legal process for Delhi CM Arvind Kejriwal, speaks on Congress frozen accounts

The US spokesperson said that they are also aware of the Congress party’s allegations that tax authorities have frozen some of their bank accounts in a manner that will make it challenging to effectively campaign in the upcoming elections.

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A day after India summoned an US diplomat over their remarks on the arrest of Delhi Chief Minister Arvind Kejriwal in the liquor policy case, the US reiterated its call for fair, transparent, timely legal processes on Wednesday.

Responding to questions on India summoning Gloria Berbena, the US Acting Deputy Chief of Mission in New Delhi, US State Department spokesperson Matthew Miller said that they will continue to follow these actions closely, including the arrest of Delhi Chief Minister Arvind Kejriwal. Notably, the meeting at the foreign ministry’s South Block office lasted nearly 40 minutes yesterday with India objecting strongly to the US remarks on the arrest of Arvind Kejriwal.

Matthew Miller also responded to a question on the Congress party’s frozen bank accounts. The US spokesperson said that they are also aware of the Congress party’s allegations that tax authorities have frozen some of their bank accounts in a manner that will make it challenging to effectively campaign in the upcoming elections. He added that the US encourages fair, transparent and timely legal processes for each of the issues.

Arvind Kejriwal was arrested last week by the Enforcement Directorate (ED) in connection to the Delhi liquor policy scam. Earlier, AAP leaders Manish Sisodia, Satyendar Jain and Sanjay Singh were arrested in the same case.

The External Affairs Ministry had earlier stated that states are expected to be respectful of the sovereignty and internal affairs of others, and this responsibility is even more so in case of fellow democracies, adding that it could otherwise end up setting unhealthy precedents.

The Ministry further emphasized that India’s legal processes are based on an independent judiciary which is committed to objective and timely outcomes. It mentioned that casting aspersions on India’s legal procedure is unwarranted.

The United State’s remarks followed days after Germany’s Foreign Office stressed that Delhi CM Arvind Kejriwal is entitled to a fair and impartial trial. The Indian government labelled their remark as blatant interference in internal matters.

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5 Chinese nationals killed in suicide bomb attack in Pakistan

This is the third major attack on Chinese interests in Pakistan within a week.

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Nearly five Chinese nationals were killed in an explosion during an attack on their convoy by a suicide bomber in northwest Pakistan on Tuesday. Reportedly, the suicide bomber rammed an explosives-laden vehicle into a convoy of Chinese engineers travelling from Islamabad to their camp in Dasu, situated in the Khyber Pakhtunkhwa province.

Regional police chief Mohammad Ali Gandapur said that five Chinese nationals and their Pakistani driver were killed in the attack. As yet, none has claimed responsibility for the attack. Bisham Station House Officer (SHO) Bakht Zahir asserted that the incident was a suicide blast and the authorities concerned were collecting the evidence.

The Station House Officer further added that security arrangements were tightened at the spot and the bodies were being shifted to a hospital. He added that they will investigate from where and how the vehicle of a suicide bomber came and how it happened. Notably, this is the third major attack on Chinese interests in Pakistan within a week.

Previously, two attacks hit an airbase and a strategic port in the southwest province of Balochistan where China is investing billions in infrastructure projects. Several Chinese engineers and Pakistani construction workers have for multiple years been working on hydroelectric projects as part of Beijing’s Belt and Road Initiative in the western province of Khyber-Paktunkhwa.

Notably, Dasu is home to a significant dam project, has been a target of previous attacks. Earlier in 2021, the attack in Dasu resulted in the deaths of nine Chinese nationals, along with two Pakistani children. The incident occured when a bus carrying Chinese engineers and workers to the Dasu Hydropower Project site was targeted.

There was confusion surrounding the nature of the attack initially, with some reports suggesting it was a bus accident. Nonetheless, subsequent investigations revealed that it was indeed a terrorist attack. The bus was hit by a blast, leading it to plunge into a ravine.

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