Notes:
LED (Light-emitting diode) 順方向に電圧を加えた際に発光する半導体素子のことである;
separately 別々に;

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This year, the Nobel Prize in Physics has gone to Akasaki Isamu, Amano Hiroshi, and Nakamura Shuji for their work on blue LEDs. They did research separately, but they all helped to make LED lighting possible. Usually the prize for physics goes to research that seems very far from everyday life, but this time the prize is very easy to understand. LEDs have changed the world so much. LEDs use much less energy and last longer than older types of lighting. Traffic lights and flashlights are made with LEDs now, and LEDs light up computer and smartphone screens. (by Prof. Douglas Jarrell)
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Notes:
app アプリ;
nephew 甥(おい);
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There is a new app called Snapchat that is very popular among young people in the U.S. It is like LINE, but instead of writing a message or making a phone call, most people use it to send photos. You can also send short videos. The interesting thing about this app is that your photo or video disappears after a few seconds. My nephew said that he uses the app to let friends know where he is, but he also uses it to take strange photos of himself. He likes to surprise people, but he doesn’t want them to keep the photos. He said that he has to look quickly or he may miss the photos he gets. (by Prof. Douglas Jarrell)
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