文章列表

• 1.【英语时差8,16】蟑螂对抗全球变暖: 谁是赢家？ -下
• Since cockroaches live underground or in small crevices, one hypothesis was that they might hold their breath because of the build-up of carbon dioxid...
• 2.【英语时差8,16】地球同步卫星：速度和轨道-下
• A satellite has to move at a certain speed to balance out gravity; o the rwise it wont stay in orbit. Now, a geo must move at the speed the earth turn...
• 3.【英语时差8,16】地球同步卫星：速度和轨道-上
• A geostationary satellite orbits the planet at the same rate as the planet rotates, so the satellite is always over the same patch of ground. Cool! Id...
• 4.【英语时差8,16】波恩茅斯-下
• Its got a really interesting history. Its only about 200 years old, but it already has about 175,000 people living the re. Its famous for its really c...
• 5.【英语时差8,16】地球腰间赘肉横生！-下
• The earth bulges around its equator by about twenty-seven extra miles, which is a three-tenths percent difference from its diameter measured pole-to-p...
• 6.【英语时差8,16】波恩茅斯-上
• Neil: Feifei, do you know which is the happiest town in England? Feifei: The happiest town in England? I am not sure, which one is it? Neil: Listen to...
• 7.【英语时差8,16】地球腰间赘肉横生！-上
• Some folks have a kind of middle-torso bulge known affectionately as love handles. Well, if you are such a person, take heart: the entire planet suffe...
• 8.【英语时差8,16】虫子，涟漪与水上行走-下
• How Do Water Bugs Move? The answer lies in the little dimples that a water bugs feet make in the otherwise flat surface. If the waters surface really ...
• 9.【英语时差8,16】大本钟
• John: Welcome to On the Town with me, John. Chen Li: And me, Chen Li. John: Today were going to investigate one of the most famous London landmarks. C...
• 10.【英语时差8,16】虫子是如何浮在水面的？-下
• This creates whats called surface tension-a somewhat compressed layer of water molecules right at the ponds surface. You can think of this layer as be...