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[时差N小时] 时差N小时:什么是太阳能龙卷风(下)
Consider a pilot who’s flying in clouds, so she has no visual clues.假设一个飞行员正穿梭于云层之中，看不到任何东西。2017-09-01 编辑：clover
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[时差N小时] 时差N小时:高压烹饪食物的原理(上)
When you boil potatoes on the stove top, it can take half an hour to cook them ’til tender.如果你用炉子烹煮土豆，那么需要半小时才能煮熟。2017-09-04 编辑：clover
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[时差N小时] 时差N小时:高压烹饪食物的原理(下)
Now here’s the secret of speedy pressure cooking.接下来就是高压锅快速烹饪的秘诀。2017-09-05 编辑：clover
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[时差N小时] 时差N小时:什么是条件反射(上)
If you’ve ever blinked at a sudden light, jerked your hand away from something hot,如果你在突然的灯光下眨眼，或碰到滚烫的物品立刻抽回手，2017-09-06 编辑：clover
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[时差N小时] 时差N小时:什么是条件反射(下)
Once it reaches the spinal cord, the impulse is routed speedily back to the muscle originally stimulated.一旦到达脊髓，神经冲动便会迅速返回至最初受到到刺激的肌肉。2017-09-07 编辑：clover
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[时差N小时] 时差N小时:为什么夜晚比白天平静(下)
But with cooler air sitting tight at ground level, the usual temperature pattern turns upside down for a few hundred feet above the ground.但是随着冷空气在地表停留，地表上方几百英尺处的气温模式就会发生颠倒。2017-09-13 编辑：clover
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[时差N小时] 时差N小时:你知道保鲜膜的原理吗?(上)
But with cooler air sitting tight at ground level, the usual temperature pattern turns upside down for a few hundred feet above the ground.但是随着冷空气在地表停留，地表上方几百英尺处的气温模式就会发生颠倒。2017-09-14 编辑：clover
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[时差N小时] 时差N小时:你知道保鲜膜的原理吗?(下)
Now that you know the secret to plastic wrap’s elasticity, let’s explore why it’s sticky.既然你已经知晓保鲜膜弹性的原理了，现在就探究下保鲜膜的粘性吧。2017-09-15 编辑：clover
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[时差N小时] 时差N小时:爆米花是健康的零食?(上)
I love to snack, but I also want to lose weight. The problem is, I really hate vegetables and fruit, at least as snack foods.我喜欢吃零食，但也想减肥。问题在于我非常讨厌蔬菜和水果，至少作为零食而言。2017-09-18 编辑：clover
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[时差N小时] 时差N小时:爆米花是健康的零食?(下)
But plain, simple popcorn is not only a healthful snack but also one of the most nutritious foods you can eat.但是普通的爆米花不仅是一款健康的零食，而且是你能吃到的最有营养的食物之一。2017-09-19 编辑：clover
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[时差N小时] 时差N小时:如何利用X射线检测米勒作品?(上)
In the 1840s, a new painting by Jean Francois Millet was unveiled in Paris.19世纪40年代，米勒的一幅新作在巴黎展出。2017-09-20 编辑：clover
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[时差N小时] 时差N小时:如何利用X射线检测米勒作品?(下)
In the 1840s, a new painting by Jean Francois Millet was unveiled in Paris.19世纪40年代，米勒的一幅新作在巴黎展出。2017-09-21 编辑：clover
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[时差N小时] 时差N小时:蜜蜂的年龄与分工(上)
Bees take on different jobs in a bee hive according to their age.蜜蜂的年龄不同,在蜂群中的分工也不同。2017-09-22 编辑：clover
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[时差N小时] 时差N小时:蜜蜂的年龄与分工(下)
Nest scouts, who search for new hive locations, were three times more likely to be nectar scouts when older.寻找新蜂巢的筑巢蜂在年老时有三倍的可能性会成为寻蜜蜂。2017-09-25 编辑：clover
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[时差N小时] 时差N小时:熊为何在夏季觅食?(上)
In the movie “The Jungle Book,” Balloo the bear spends his days singing and dancing and munching paw-paws.在电影《奇幻森林》中，棕熊巴鲁整天的生活就是唱歌、跳舞和咀嚼番木瓜。2017-09-26 编辑：clover
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[时差N小时] 时差N小时:熊为何在夏季觅食?(下)
Unless humans surprise the bear or threaten the cubs, bears will avoid human contact.除非受到惊吓或幼仔受到威胁，否则它们会尽量避免与人类接触。2017-09-27 编辑：clover
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[时差N小时] 时差N小时:为何挡风玻璃如此结实?(上)
We tend to think of glass as fragile–but in fact, glass is pretty strong stuff.我们往往认为玻璃是易碎的，而事实上，玻璃十分坚固。2017-09-28 编辑：clover
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[时差N小时] 时差N小时:为何挡风玻璃如此结实?(下)
We tend to think of glass as fragile–but in fact, glass is pretty strong stuff.我们往往认为玻璃是易碎的，而事实上，玻璃十分坚固。2017-09-29 编辑：clover
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[时差N小时] 时差N小时:你知道植物也有夜生活吗?(上)
Most plants grow buds, flower, or lie dormant at specific times of year.大多数植物都在每年特定时间里发芽，开花，或者冬眠。2017-09-30 编辑：clover
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[时差N小时] 时差N小时:你知道植物也有夜生活吗?(下)
Midway through the day, the biologists exposed the plants to a brief period of complete darkness.生物学家在白天期间让植物暂时陷入完全的黑暗。2017-10-01 编辑：clover
