Almost three centuries after his death, Antonio Stradivari is still a legend for the sound of his instruments, from the rich depths of his cellos [cello sound] to the soaring clarity of his violins [violin sound]. Theories are often put forth that St

发表于:2018-12-24 / 阅读(196) / 评论(0)

Scientific American(十二)月

SSS 2009-12-21

Its the season for celebrating and many of those celebrations include imbibing alcohol. Which sometimes leaves us the next morning with uncomfortable reminders of our excesses. But does what we drinksay bourbon versus vodkamake a difference? Apparent

发表于:2018-12-02 / 阅读(242) / 评论(0)

Scientific American(十二)月

SSS 2009-12-22

In 2008 astronomers discovered surprising amounts of water molecules where planets were forming near young stars. But how, they wondered, could those molecules survive? They should have been destroyed by ultraviolet radiation. In theory, planetary du

发表于:2018-12-02 / 阅读(245) / 评论(0)

Scientific American(十二)月

SSS 2009-12-23

Picture a gamer, someone who spends countless hours immersed in one of those online role-playing alternate realities. And what do you see? Is it a physically fit female closer to 40 than 14? If not, you may need to rethink your assumptions about geek

发表于:2018-12-02 / 阅读(233) / 评论(0)

Scientific American(十二)月

SSS 2009-12-24

The northeast just had its first big snow of the season. Meanwhile, on Titan, it was foggy. That weather report brought to you by researchers publishing in the journal Astrophysical Journal Letters. The scientists found that Titan, Saturns largest mo

发表于:2018-12-02 / 阅读(230) / 评论(0)

Scientific American(十二)月

SSS 2009-12-28

Did you ever sit down to take a test and discover that the person next to you mumbles his way through the whole thing. You probably thought, What kind of doofus cant add a few numbers without moving his mouth? Turns out the answer may be: a very clev

发表于:2018-12-02 / 阅读(222) / 评论(0)

Scientific American(十二)月

SSS 2009-12-29

Could there be a substance that both gives us the munchies and can help combat obesity? There may indeed be, according to research published in the Proceedings of the National Academy of Sciences. The Monell Center in Pennsylvania partnered with Kyus

发表于:2018-12-02 / 阅读(229) / 评论(0)

Scientific American(十二)月

SSS 2009-12-31

So 2009 was, in part, a year of powerful people behaving badly. We had Kanye West stealing Taylor Swifts moment at the VMA awards, South Carolina governor Mark Sanford disappearing to, ahem, hike the Appalachian trail, and of course David Letterman,

发表于:2018-12-02 / 阅读(340) / 评论(0)

Scientific American(十二)月

SSS 2009-12-30

Before you pay big money for caviar, check with two New York City high school students. Brenda Tan and Matt Cost worked with DNA barcoding experts at Rockefeller University and other researchers at the American Museum of Natural History to identify h

发表于:2018-12-02 / 阅读(232) / 评论(0)

Scientific American(十二)月

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

adjustable reference mismatch

aegithalos concinnus concinnus

anisotropic permanent-magnetic material

bilateral weft supply

bird table

burdensomeness

calculated distribution