科学60秒:地球的兄弟Kepler 22b
Hints:Kepler 22bNASA's orbiting Kepler telescope has discovered its first planet in the habitable zone of another star. By "habitable," astronomers mean that a planet could harbor temperatures c...
科学60秒:足球运动员的"隐形杀手"
On February 17 former Chicago Bears football player Dave Duerson killed himself with a gun shot to the chest. Doctors later found that Duerson had a condition in common with more than 20 other ...
治疗辐射伤害缺乏有效方法
日本核泄漏引发的辐射恐惧Countries across Asia and beyond are reporting small amounts of radiation from the disabled nuclear reactors in Japan. But officials say these levels are not a threat to ...
照亮黑暗角落的光芒
短文Shining Light in Dark Corners "Dr.Papaderos, what is the meaning of life?" The usual laughter followed, and people stirred to go. Papaderos held up his hand a...