

The award ceremony for other Nobel Prizes has been held in the Swedish capital, Stockholm. This year, three Japanese-born scientists received the prize in physics.
Professor Isamu Akasaki of Meijo University, Professor Hiroshi Amano of Nagoya University, and Professor Shuji Nakamura of the University of California, Santa Barbara, won the prize for their contribution to the development of the blue light-emitting diode, or LEDs.
(Anne L'Huillier / Nobel Committee for Physics)
"You have been awarded the 2014 Nobel Prize in Physics for your invention of efficient blue light-emitting diodes, which has enabled bright and energy-saving white light sources."
Swedish King Carl Gustaf handed the medals to the scientists. A member of the Nobel Committee praised them for their efforts in creating gallium nitride crystal, which allowed for the development of blue LEDs. She says blue LEDs are environmentally friendly and can be found lighting up streets and homes around the world.
◆light-emitting diode 発光ダイオード、LED
◆gallium nitride 窒化ガリウム
◆crystal 結晶
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Tom and I have been playing phone tag.
15857.give~a ring(~に電話をかける)
Could you tell him to give me a ring?
15858.secretly(秘かに)
Tom secretly admires his father.
15859.get hold of(~を捕まえる)
I have been trying to get hold of you.
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Sorry, I was tied up at work.
今日の英語ニュースを聞こう!NHK WORLD Daily News

Tom and I have been playing phone tag.
15857.give~a ring(~に電話をかける)
Could you tell him to give me a ring?
15858.secretly(秘かに)
Tom secretly admires his father.
15859.get hold of(~を捕まえる)
I have been trying to get hold of you.
15860.be tied up at work(仕事で手が離せない)
Sorry, I was tied up at work.
今日の英語ニュースを聞こう!NHK WORLD Daily News
