sun-凯发k8官网

10-08-04 call it the anti- sunscreen（遮光剂） . that's more or less the description of what many solar energy researchers would like to find -- light-catching substances that could be added to photovoltaic（光电的） materials in order to convert more of the...

10-06-18 the four seasons the sun starts shining. plants start growing. flowers startopening. birds start singing and making their nests. spring is here. the hot sun'shining. we start having fun. we start swimming. we start eating ice cream. the holidays are...

10-06-14 many of the most well known comets, including halley, hale-bopp and, most recently, mcnaught, may have been born in orbit around other stars, according to a new theory by an international team of astronomers（天文学家） led by a scientist from the s...

10-05-25 solar physicists at the university of california, berkeley, have captured for the first time the collision of a comet with the sun. using instruments aboard nasa's twin stereo spacecraft, four post-doctoral fellows at uc berkeley's space sciences la...

10-04-07 in an analysis of the past 1.2 million years, uc santa barbara geologist lorraine lisiecki discovered a pattern that connects the regular changes of the earth's orbital（轨道的，眼窝的） cycle to changes in the earth's climate. the finding is report...

09-10-30 the first solar system energetic particle maps show an unexpected landmark occurring at the outer edge of the solar wind bubble surrounding the solar system. scientists published these maps, based mostly on data collected from nasa's interstellar bo...

09-10-30 the moon is a big sponge（海绵） that absorbs electrically charged particles given out by the sun. these particles interact with the oxygen present in some dust grains（颗粒） on the lunar surface, producing water. this discovery, made by the esa-is...

09-10-21 sun microsystems has said it will cut 3,000 jobs in the next year as it awaits the verdict of an eu probe into a takeover by oracle corp. 太阳微系统称，明年将削减3000个工作岗位以等待欧盟关于甲骨文集团收购的调查。 sun has suffered long-running financ...

09-08-30 众所周知，日照与情绪息息相关，最明显的例子就是季节性情感障碍抑郁症的一种，其症状随着季节的变化而不同，通常是患者病情在秋冬季节加重，而光照多的季节得到缓解。但是，光照能影响人们思考和记忆，却是个新话题。根据一项最新的研究显示，经过两周的观察，生活在...

09-08-18 three in four parents are risking their child's eyesight by exposing them to bright sun without appropriate protection, experts warn. 专家警告道，四分之三的父母将自己的孩子的双眼直接曝与日光之下而没有任何保护。 some children may resist wearing sungl...