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Two scientists share 2015 Nobel Prize in Physics

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Stockholm:  The 2015 Nobel Prize for physics has been awarded to two scientists, Japan’s Takaaki Kajita and Canada’s Arthur B. McDonald, the Royal Academy of Sciences in Stockholm announced on Tuesday.

According to an official statement issued by the academy, Takaaki, 56, and McDonald, 72, were awarded for their key contributions to the experiments which demonstrated that neutrinos change identities.

This metamorphosis requires that neutrinos have mass. The discovery has changed our understanding of the innermost workings of matter and can prove crucial to our view of the universe, the statement said.

Takaaki had presented the discovery that neutrinos from the atmosphere switch between two identities on their way to the Super-Kamiokande detector in Japan.

Meanwhile, the research group in Canada led by McDonald could demonstrate that the neutrinos from the Sun were not disappearing on their way to Earth. Instead they were captured with a different identity when arriving to the Sudbury Neutrino Observatory in Ontario, Canada.

The discovery rewarded with this year’s Nobel Prize in Physics have yielded crucial insights into the all but hidden world of neutrinos, the statement added.

(IANS)

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Fukushima’s Nuclear Power Plant: Japan Begins Removing Fuel

The three units at Fukushima Daiichi nuclear power plant melted down after a major earthquake, followed by a tsunami struck Japan in 2011, killing about 18 thousand people and forced the evacuation of areas near the plant.

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Tour guide Katsuaki Shiga, right, and a tourist check radiation levels at Joroku Park, near Tokyo Electric Power Co.'s tsunami-crippled Fukushima Daiichi nuclear power plant, in Namie town, Fukushima prefecture, Japan, May 17, 2018. VOA

The operator of Japan’s Fukushima nuclear power plant began removing fuel rods Monday from one of three reactors that melted down in 2011.

The Tokyo Electric Power Company (TEPCO) said workers started removing the first of the used and unused fuel units from a cooling pool at reactor 3.

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The three units at Fukushima Daiichi nuclear power plant melted down after a major earthquake, followed by a tsunami struck Japan in 2011, killing about 18 thousand people and forced the evacuation of areas near the plant. Pixabay

The operation was was more than four years behind schedule, and had a short further delay Monday afternoon, after a problem with the equipment, but resumed after the mishap was addressed.

TEPCO has estimated that it will take up to two years to remove 566 of nuclear fuel rods from that reactor.

 

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After the cleaning operation at Unit 3, TEPCO expects to continue with the removal of 1000 nuclear fuel rods from the storage pools of reactors one and two. VOA

 

The work is being managed remotely from a control room about 500 meters away, because of high radiation level still present inside the building of Unit 3.

After the cleaning operation at Unit 3, TEPCO expects to continue with the removal of 1000 nuclear fuel rods from the storage pools of reactors one and two.

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The three units at Fukushima Daiichi nuclear power plant melted down after a major earthquake, followed by a tsunami struck Japan in 2011, killing about 18 thousand people and forced the evacuation of areas near the plant. (VOA)