Polar Bears Must Work Harder On Faster Sea Ice Treadmill奔跑吧!北极熊 Polar bears live on floating rafts of sea ice, hunting for seals. But in the Arctic Ocean north of Alaska, the cold polar wind constantly blows that ice from east to west. Wh

发表于:2018-12-24 / 阅读(81) / 评论(0) 分类 2017年Scientific American(四)月

图片1 Harp is back by popular demand with more advice on looking for work. This time Harp gives advice on everything about the interview process. She talks about how to prepare, what to do during the interview, and how to follow up afterwards. Youl

发表于:2019-01-01 / 阅读(66) / 评论(0) 分类 英语博客-北美风情

After Higgs Hunt, Fermilab Charts New Paths in Physics Research At the Grid Computing Center at Fermilab - half a world away from the Large Hadron Collider in Switzerland - the key to understanding how the Higgs boson works and what it means for the

发表于:2019-01-14 / 阅读(81) / 评论(0) 分类 VOA标准英语2013年(三月)

MARY LOUISE KELLY, HOST: We learned late this afternoon that federal agents have gone into the office of President Trump's longtime personal attorney Michael Cohen. This was confirmed by Cohen's attorney. President Trump called the raid a disgraceful

发表于:2019-01-16 / 阅读(69) / 评论(0) 分类 2018年NPR美国国家公共电台4月

For thousands of years, weve wondered if we are alone in the cosmos. Life, is it a one-time event, or its something that's occurred lots of times throughout the universe.? And at this very moment, new discoveries are bringing us closer to the answers

发表于:2019-01-22 / 阅读(68) / 评论(0) 分类 自然百科2010年

Because these two bull mammoths both had broken tusks, they could have fought at closer quarters than they would do normally. Twisting and turning, they became locked in a deadly embrace. Even more bizarre, this twist of fate then caused a third fata

发表于:2019-01-23 / 阅读(170) / 评论(0) 分类 探索与发现2012年

SCOTT SIMON, HOST: Try to put these words together in a sentence - Scottish, zombie, Christmas, high school musical. Wait. Somebody already has. (SOUNDBITE OF FILM, ANNA AND THE APOCALYPSE) ELLA HUNT: (As Anna, singing) I'm not a princess sat in whit

发表于:2019-02-21 / 阅读(156) / 评论(0) 分类 2018年NPR美国国家公共电台12月