by yangheng

Interstellar travel has always been a dream of mankind, but transportation is a major issue. In the science fiction TV series "Star Trek," people use dark matt......

Recharging mobile phones or MP3 players by walking only? Pretty soon, thanks to nanofibers able to convert mechanical energy into electric power, the dream of ......

The year 2009 was declared the "International Year of Astronomy" by the United Nations to mark the 400th anniversary of Galileo's first use of the telescope fo......

"Mona Lisa", the immortal masterpiece of the great Italian painter Leonardo da Vinci, has always been surrounded by many mysteries. However, a unique scientifi......