1364
물의 흐름에서 얻는 에너지
A number of companies have used the wind and sun to produce energy. Now, one company is using the force of flowing rivers and ocean currents.
1362
도시 생활의 영향
Are people happier in nature with blue skies overhead and fresh green grass underfoot? Could noisy streets, crowded with cars and people, make us unhappy?
1361
세계의 다이어트
We are what we eat. This is an old expression, but one worth knowing. A recent look at diets around the world shows that people who eat healthy food -- and not too much of it -- live longer.
1360
북극고래의 노래
Another interesting quality? Their underwater communication style has scientists comparing them to “jazz” artists.
1359
하수구에 빠진 소년 구하기
California officials are praising workers for rescuing a 13-year-old boy who fell into a river of sewage in Los Angeles.
1358
인기있는 견종
For the 27th year, the most popular purebred dog in America is the Labrador retriever.
1357
건강에 좋은 해초
Seaweed describes plants and algae that grow in oceans, lakes, rivers and other bodies of water.
1356
로봇 오케스트라
The two-man band performs with a robot that can play several musical instruments at the same time. The robot can sound like a guitar, keyboard, drum or other percussion instrument.
1355
낮잠의 효과
But what about getting rest during the middle of the day? Short periods of sleep may help our brains work better, or so says a recent study on napping.
1354
춘분
The word vernal comes from the Latin word vernalis, meaning “of the spring.” And equinox comes from the Latin words aequus, meaning equal, and nox, meaning night.