Symbolic 'Doomsday Clock' moves closer to midnight

January 27, 2017

Washington, Jan 27: Comments by US President Donald Trump on nuclear weapons and climate change have helped make the world less safe, the Bulletin of the Atomic Scientists warned on Thursday, moving its symbolic "Doomsday Clock" 30 seconds closer to midnight.

doomsdayThe clock which serves as a metaphor for how close humanity is to destroying the planet was last changed in 2015, from five to three minutes before midnight.

It is now set at two and a half minutes to midnight, amid concerns about "a rise in strident nationalism worldwide, President Donald Trump's comments on nuclear arms and climate issues, a darkening global security landscape that is colored by increasingly sophisticated technology, and a growing disregard for scientific expertise," said a statement by the group of scientists and intellectuals, including 15 Nobel laureates.

Trump has made contradictory statements about climate change, at times calling it a hoax and other times saying he would keep an open mind about it.

On the nuclear issue, Trump said in December that the US must build up its nuclear arsenal+ .

Responding to a statement by Russian President Vladimir Putin that Moscow needs to strengthen its own nuclear force, Trump responded with a tweet: "The United States must greatly strengthen and expand its nuclear capability until such time as the world comes to its senses regarding nukes."

"The Doomsday Clock is closer to midnight than it has ever been in the lifetime of almost everyone in this room," Lawrence Krauss, chair of the Bulletin's board of sponsors, told reporters at the National Press Club in Washington.

"The last time it was closer was 63 years ago in 1953 after the then Soviet Union exploded its first hydrogen bomb, creating the modern arms race," he added.

"More than that, this is the first time that the words and stated policies of one or two people placed in high positions have so impacted on our perception of the existential threats we believe the world faces," he said, alluding to Trump and Putin.

Krauss cited intelligence reports that accuse Russia of interfering with the US presidential campaign to favor Trump's victory as symbolic of the "deeper global threat" posed by cybertechnology.

"The question of whether the fabric of democracy may be imperiled by reducing faith in both the integrity of election and the very information on which an informed public can base their voting becomes suspect," said Krauss, a theoretical physicist at Arizona State University.

He also said the bulletin "is extremely concerned about the willingness of governments — including the current US administration — to ignore or discount some science or evidence during their decision-making process."

Last year, the warmest year in modern times due to human-driven climate change, world leaders "actually increased the threat of nuclear war and unchecked climate change through a variety of provocative statements and actions including careless rhetoric about the use of nuclear weapons," said Krauss.

An amid escalating rhetoric on the nuclear front, he called on Russia and the United States, which possess the large majority of the world's nuclear weapons, to focus in the coming year on reducing their arsenals.

"President Trump and President Putin, who claim great respect for each other, can choose to act together as statesmen or act as petulant children risking our future," he said.

"Regardless, these issues are too important to be left in the hands of a few men. We therefore call upon all people to speak out and send a loud message to your leaders that you will not allow them to needlessly threaten your future and the future of your children."

In an opinion piece published in the New York Times, Krauss and another bulletin scientist, David Titley, wrote that Trump was a key factor in their decision.

"Never before has the Bulletin decided to advance the clock largely because of the statements of a single person," they wrote.

"But when that person is the new president of the United States, his words matter."

The Doomsday Clock was created in 1947. It has changed 19 times since then, ranging from two minutes to midnight in 1953 to 17 minutes before midnight in 1991.

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News Network
May 6,2020

Hyderabad, May 6: Away from city lights, two hours before Sunrise, people in India and across the world can witness Annual Meteor Shower called Eta Aquarids till May 28.

Observed since time immemorial, Meteor shower are commonly known as shooting stars which are nothing but dust flakes of comet/asteroid entering earth atmosphere.

This Annual Eta Aquarids Meteor Shower peaked on Wednesday at 02.30 am on Wednesday whereas presence of Full Moon was an obstacle outshining bright streaks of lights of this meteor shower zipping across the South Eastern sky.

As this meteor shower is active till May 28, people can still watch this celestial spectacle in early morning every day, Planetary Society of India (PSI) Director N Sri Raghunandan Kumar interacting with UNI said.

As per International Meteor Organization (IMO), 50 meteors per hour are expected to be seen on day of peak today. And this number would vary as days pass on till May 28 while earth passes through dust cloud of comet debris in its orbit.

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Agencies
June 22,2020

New delhi, Jun 22: As consumer sentiment runs high amid growing chorus for boycotting Chinese goods in the country, the fluid market situation offers new opportunities for various smartphone makers, especially the non-Chinese ones like Samsung, Apple, Nokia, Asus and others, to realign their strategies and regain the lost market share in the face of fierce Chinese competition.

The challenge here would be not to look "opportunistic" and leverage the current explosive situation on just riding on the anti-Chinese sentiment but to offer real challenges in the form of top-end devices with solid internals at affordable price points, feel industry experts.

"The current market conditions in India are fluid and open up new opportunities for smartphone original equipment manufacturers (OEMs) to focus and leverage," Prabhu Ram, Head-Industry Intelligence Group, CyberMedia Research (CMR), told IANS.

In the first quarter (January-March) this year, Samsung's shipments were driven by its upgraded A and M series (A51, A20s, A30s, and M30s).

According to Counterpoint Research, Samsung managed to hold third position in Q1 2020 due to launches across several price tiers, especially in the affordable premium segment (S10 Lite, Note 10 Lite).

The South Korean smartphone maker last week announced a Rs 4,000 price drop on its popular Galaxy Note10 Lite smartphone that will now cost Rs 37,999 (6GB variant).

Earlier this month, Samsung launched two new smartphones, Galaxy M11 and Galaxy M01, with powerful batteries under Rs 15,000 in India.

Galaxy M11 comes in two variants. The 3GB+32GB will be priced at Rs 10,999 while the higher 4GB+64GB variant will be available for Rs 12,999.

Samsung has also launched an affordable Galaxy A21s smartphone with quad-camera system and 5,000mAh battery at a starting price of Rs 16,499.

Also read: Boycott China? OnePlus 8 Pro sold out within minutes of going on sale

On the other hand, Apple grew a strong 78 per cent YoY driven by strong shipments of iPhone 11 and multiple discounts on platforms like Flipkart and Amazon in Q1, according to Counterpoint.

Apple has also brought its cheapest yet powerful new iPhone SE that costs Rs 38,900 (64GB) in India with a special offer from HDFC Bank. The new iPhone SE is powered by the Apple-designed A13 Bionic, the fastest chip in a smartphone and features the best single-camera system ever in an iPhone.

According to Tarun Pathak, Associate Director, Counterpoint Research, consumer sentiments are running high and a section of users will look for alternatives, benefitting global and Indian brands.

"However, we do not think non-Chinese brands will run aggressive campaigns based on the situation as it might look like being opportunistic," Pathak told media.

It may actually let brands of Chinese origin try to run aggressive campaigns on their presence and scale.

"Some of these Chinese brands have been active in scaling up local value addition, creating jobs and investing in research and development," Pathak noted.

On Saturday, market leader Xiaomi said that it is "more Indian" than any other smartphone brand.

The company's India head Manu Kumar Jain said that the company's mobile phone R&D centre and product team is in India, it employs 50,000 people in the country, the entire leadership team is Indian and that the company pays its taxes in India.

Earlier, Realme India CEO Madhav Sheth who is also very active on social media said that Realme is an Indian startup.

In his latest episode of Ask Madhav' series on YouTube, Sheth said: "I can proudly say Realme is an Indian startup, which is now a global MNC (multinational corporation)".

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Agencies
June 8,2020

Washington DC, Jun 8: Astronomers acting on a hunch have likely resolved a mystery about young, still-forming stars and regions rich in organic molecules closely surrounding some of them.

They used the National Science Foundation's Karl G Jansky Very Large Array (VLA) to reveal one such region that previously had eluded detection and that revelation answered a longstanding question.

The regions around the young protostars contain complex organic molecules which can further combine into prebiotic molecules that are the first steps on the road to life.

The regions, dubbed "hot corinos" by astronomers, are typically about the size of our solar system and are much warmer than their surroundings, though still quite cold by terrestrial standards.

The first hot corino was discovered in 2003 and only about a dozen have been found so far. Most of these are in binary systems, with two protostars forming simultaneously.

Astronomers have been puzzled by the fact that, in some of these binary systems, they found evidence for a hot corino around one of the protostars but not the other.

"Since the two stars are forming from the same molecular cloud and at the same time, it seemed strange that one would be surrounded by a dense region of complex organic molecules and the other wouldn't," said Cecilia Ceccarelli, of the Institute for Planetary Sciences and Astrophysics at the University of Grenoble (IPAG) in France.

The complex organic molecules were found by detecting specific radio frequencies, called spectral lines, emitted by the molecules. Those characteristic radio frequencies serve as "fingerprints" to identify the chemicals.

The astronomers noted that all the chemicals found in hot corinos had been found by detecting these "fingerprints" at radio frequencies corresponding to wavelengths of only a few millimetres.

"We know that dust blocks those wavelengths, so we decided to look for evidence of these chemicals at longer wavelengths that can easily pass through dust," said Claire Chandler of the National Radio Astronomy Observatory, and principal investigator on the project.

"It struck us that dust might be what was preventing us from detecting the molecules in one of the twin protostars," added Chandler.

The astronomers used the VLA to observe a pair of protostars called IRAS 4A, in a star-forming region about 1,000 light-years from Earth. They observed the pair at wavelengths of centimetres.

At those wavelengths, they sought radio emissions from methanol, CH3OH (wood alcohol, not for drinking). This was a pair in which one protostar clearly had a hot corino and the other did not, as seen using the much shorter wavelengths.

The result confirmed their hunch. "With the VLA, both protostars showed strong evidence of methanol surrounding them. This means that both protostars have hot corinos. The reason we did not see the one at shorter wavelengths was because of dust," said Marta de Simone, a graduate student at IPAG who led the data analysis for this object.

The astronomers cautioned that while both hot corinos now are known to contain methanol, there still may be some chemical differences between them. That, they said, can be settled by looking for other molecules at wavelengths not obscured by dust.

"This result tells us that using centimetre radio wavelengths is necessary to properly study hot corinos," Claudio Codella of Arcetri Astrophysical Observatory in Florence, Italy, said.

"In the future, planned new telescopes such as the next-generation VLA and SKA, will be very important to understanding these objects," added Codella.

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