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[时差N小时] 时差N小时:地球磁场的变化(下)
By calculating how old the rocks are where we find these ancient compasses, we can figure out how long ago the magnetized parts were locked in. That tells us which direction was magnetic north tens o2011-11-15 编辑：beck
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[时差N小时] 时差N小时:享受阅读报纸的乐趣
许多人告诉我，网络已经替代了老式的阅读，但是我不应该担心这会导致年轻人的想象力得不到发展，PowerPoint展示，视频游戏，短消息的发送，YouTube还有无数的高科技发展会使年轻人的想象力保持活跃并增长。2011-11-16 编辑：beck
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[时差N小时] 时差N小时:让累人的室内装修变得轻松些
听力原文Amanda: I'm so exhausted, Mike. I've been shopping in gazillion department stores with my mom throughout the week. We're planning on renovating our house, so we're looking for2011-11-17 编辑：beck
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[时差N小时] 时差N小时:地球磁场的变化(上)
You’re a polar explorer and you’ve just reached the north pole. The huskies are yapping, the cameras are ready and you’re just about to unfurl the flag when, all of a sudden, the no2011-11-14 编辑：beck
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[时差N小时] 时差N小时:在企鹅蛋壳上行走
企鹅在海岸边坚硬的地表产蛋，如果土地合适，它们也会挖洞。因为它们更擅长游泳而不是走路，对企鹅来说要收集到很多柔软的筑巢的材料是很难的。2011-11-18 编辑：beck
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[时差N小时] 时差N小时:哪一个先落地?(下)
Why not? You cry.Well,ask yourself this question: which one is easier to move in the first place? The golf ball. So it takes more force to move the bowling ball. And the bowling ball is also the one2011-11-25 编辑：beck
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[时差N小时] 时差N小时:洗手的重要性
D: Today, it's time once again for another Gross Fact of the Month.[qh]今天再来谈下另一个令人厌烦的话题。[qh]Y: Uh oh! I hope no one's eating![qh]我希望没人在吃饭。[qh]D: Okay, ready? In a re2011-11-23 编辑：beck
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[时差N小时] 时差N小时:蚂蚁感染真菌变"僵尸“
科学家在巴西发现了“僵尸蚂蚁”，那是怎么回事？原来蚂蚁感染上一种真菌。事实上，科学家刚刚已经发现了能产生真菌的4种新物种。2011-11-21 编辑：beck
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[时差N小时] 时差N小时:蚂蚁感染真菌变"僵尸“(下)
Experiments have shown that if infected ants are moved from those locations, the fungus won’t develop. Once in ideal locations, the ants bite down on the leaf’s vein and the fungus grows2011-11-22 编辑：beck
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[时差N小时] 时差N小时:外婆担心外孙被宠坏(上)
Dear Annie:[qh]Annie你好:[qh]My daughter allows her 8-year-old son to stay up late at night, watch adult TV and eat lots of sweets. She strongly resents any suggestion that this is not a good thing.[2011-11-28 编辑：beck
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[时差N小时] 时差N小时:哪一个先落地?(上)
这是一个物理学的经典：设想你从帝国大厦上同时丢下一个高尔夫球和一个保龄球。那个先着地？2011-11-24 编辑：beck
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[时差N小时] 时差N小时:外婆担心外孙被宠坏(下)
Dear Grandma:[qh]祖母你好：[qh]Your daughter's parenting skills could use some improvement, and yes, it's possible those kids will grow up to be overweight, undereducated crooks, but she need2011-11-29 编辑：beck
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[时差N小时] 时差N小时:走路时为什么要甩胳膊？(上)
你想过为什么走路时我们要甩胳膊吗？这是很有趣的现象，因为胳膊在走路时并没有明显的作用。2011-12-02 编辑：beck
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[时差N小时] 时差N小时:蓝鲸是天生的歌唱家(上)
Did you know that blue whales sing their songs exactly on pitch, with unbelievable accuracy? Scientists at San Francisco State University analyzed over 4,000 blue whale songs off the coast of Califor2011-11-30 编辑：beck
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[时差N小时] 时差N小时:走路时为什么要甩胳膊?(下)
But although it happens passively, arm swinging plays an important role in making your stride more efficient. It does this by counterbalancing your torso and hips and keeping them from twisting and b2011-12-05 编辑：beck
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[时差N小时] 时差N小时:为什么马的腿很细?(上)
Why horses have skinny legs? What’s the use of a skinny leg? The answer is Running. The skinniest lower legs belong to the fastest runners. Think of how a deer can move, as opposed to a tortois2011-12-12 编辑：beck
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[时差N小时] 时差N小时:箱子底部的玉米薄片为什么不会被压碎(上)
Why don’t the cornflakes at the bottom of the box get crushed by the weight of the flakes on top? That’s the question on this Moment of Science. Research by mathematician Bruce Pitman of2011-12-07 编辑：beck
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[时差N小时] 时差N小时:有钱就一定幸福吗?
Does money make us happy? Well, according to that famous Beatles song, no: Money Can’t Buy Me Love. But, of course, the Beatles also had a hit with their cover of the Motown song Money, That&rs2011-12-09 编辑：beck
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[时差N小时] 时差N小时:风力发电机(上)
If you’ve ever driven by a wind farm, you may have noticed that the turbines most likely have three blades. Not two, not five, but three. Now, you may think that if the point of a wind turbine2011-12-14 编辑：beck
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[时差N小时] 时差N小时:风力发电机(下)
Turbines with one or two blades are actually even more efficient. But because they’re also lighter and tend to spin faster, they’re also noisier. These designs also require a special tilt2011-12-15 编辑：beck
