万物简史 第478期:生命在前进(20)

Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s

SSS 2011-03-29

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

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its time again for the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive always been fascinated by volcanoes. So I was wondering: How well can scientists predict when and where a volcano will erupt? Intersting question. Th

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SSS 2008-04-17

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

SSS 2009-11-13

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

NPR 2010-07-04

A United Nations spokesman says at least 220 people are dead in the Democratic Republic of Congo after a fuel tanker overturned and exploded. Another 110 people were injured. The BBC's Tom Fessy reports from Kinshasa. The number of casualties may ris

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1. Authority investigators are looking for one or more arson suspects linked to several wildfires burning across central portion of the state. A witness told investigators someone in a car was spotted dropping something into an open field and fires

AP 2010-12-02

1. The White House is calling a decision by WikiLeaks to release hundreds of thousands of classified US diplomatic files reckless and dangerous. Government officials say the documents often contain incomplete information that could deeply impact US i

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美国国家公共电台 NPR 'American Fire' Tells A True Story Of Love And Arson In Rural Virginia

MICHEL MARTIN, HOST: Now to a story that's like so many others you've heard, and yet it's like nothing you've heard. It started with an abandoned house on the Eastern Shore of Virginia that burned to the ground. Night after night during that November

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Tunisia announces curfew following unrest

TUNIS, Jan. 12 (Xinhua) -- Tunisian Interior Ministry announced curfew in Grand Tunis region starting from 8:00 p.m. (1900 GMT) Wednesday to 5:30 a.m. (0430 GMT) Thursday following unrest spread to the capital on Wednesday. The move came after violen

英语故事:蜘蛛之丝 The Spider's Thread (上)

One day, the Buddha was strolling alone along the edge of a lotus pond in Paradise. The blooming lotus flowers in the pond were each pure white like jewels, and the place was filled with the indescribably wondrous fragrance continually emitted from e

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In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月，俄罗斯最大的大学图书馆之一发生了火灾

英语博客:Story time part 5, a Black history

It was dark by the time Thomas Black got home that night. He had lingered in the workshop, putting final details on cabinetry and tables. He had needed the time to be alone, and to digest Theo's words. He was disturbed by her account of the Whitcome

Researchers make sperm from stem cell in dish

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo