文章列表

• 1.【英语时差8,16】用一根绳子连接地球和同步卫星（下）
• When you haul something up by rope, you generally think of the object being lifted as the weight. Something we dont consider is that the rope has to b...
• 2.【英语时差8,16】核电厂更安全了吗？（上）
• In 1979, there was an incident at a nuclear power plant on Three Mile Island, in Pennsylvania, when radioactive steam leaked into the open air. Nobody...
• 3.【英语时差8,16】核电厂更安全了吗？（下）
• According to the 2009 update of an MIT study first published in 2003, nuclear power plants in the United States have become more reliable and signific...
• 4.【英语时差8,16】录像机如何记录（上）
• Although audio tapes and video tapes look different, theyre based on the same principles. Each has a roll of magnetic material which slides past the s...
• 5.【英语时差8,16】鼻塞（下）
• Unfortunately, theres no quick and easy way to dry up a toddlers runny nose. Although anti-histamines may stop the drainage, they can also clog up the...
• 6.【英语时差8,16】鼻塞（上）
• As anyone whos had a toddler knows, theyre incredibly demanding creatures. Armed with an insatiable desire to eat and/or destroy just about everything...
• 7.【英语时差8,16】读心术（上）
• Sometimes we get letters here at Moment of Science asking whether psychics are for real. Well, despite the t.v. shows, there isnt any scientific evide...
• 8.【英语时差8,16】读心术（下）
• If, somehow, brains could read other brains directly, there would indeed be a very strong evolutionary advantage to it. In Asimovs example, even a sim...
• 9.【英语时差8,16】新陈代谢（下）
• In order to build tissue and repair it, however, anabolism requires energy, as well as material with which to build. This energy and building material...
• 10.【英语时差8,16】海獭之病（下）
• Toxoplasma gondii is a protozoan that is fatal to otters if its ingested. They may be getting in it from the shellfish they eat, or just drink it in s...