TED演讲 第11期:从20马赫的滑翔机到蜂鸟无人机的感想(6)

And more so than most,he saw the highs and the lows,the celebrations and the disappointments. 很多时候，他看到我生活的起伏，成功和失败。 And on one particularly dark day for me,Jason sat down and he wrote an email. 在我非常难过

TED演讲 第10期:从20马赫的滑翔机到蜂鸟无人机的感想(5)

Each lightning bolt heats the air to 44,000 degrees Fahrenheit hotter than the surface of the Sun. 每一道闪电都能把空气。加热到44,000华氏度比太阳表面还热。 What if we could use these electromagnetic pulses as beacons,beacons

TED演讲 第7期:从20马赫的滑翔机到蜂鸟无人机的感想(2)

40 years later, aero experts coined the term transonic. 40年后空气动力学专家创造了跨音速这个术语。 They debated, should it have one S or two? 他们争论这个术语应该用一个S，还是两个S? You see, they were having trou

TED演讲 第6期:从20马赫的滑翔机到蜂鸟无人机的感想(1)

You should be nice to nerds. 你们要对书呆子好点。 In fact, I'd go so far as to say, if you don't already have a nerd in your life, you should get one. 实际上，我想说如果你生活里还没有个书呆子赶紧找一个。 I'm just s

美国科学60秒 SSS 2012-10-17

Researchers have known about these high-pitched squeaky songs for years. But they only recently discovered that mice can learn the songs of other mice. Such vocal learning is a rarity among animals. We know of only three kinds of birdsparrots, hummin

美国语文：LESSON 21 蜂鸟

节目简介： 1、该读本从19世纪中期至20世纪中叶，一直被广泛用作美国学校的语文教材，据称有10000多所美国学校拿它当作教材。到了21世纪，西方一些私立学校（Private School)和家庭学校（Hom

英语听力：自然百科 黄石公园的夏天 Yellowstone—8

This pack seem prepared to allow their young a brief foray to experience the world beyond their den. Even in Yellow Stone it is extremely rare to see wolf pups like this. Before long they are summoned back into the forest by the pack. It will be wint

英语听力：自然百科 黄石公园的夏天 Yellowstone—9

This pack seem prepared to allow their young a brief foray to experience the world beyond their den. But his high-octane lifestyle critically depends on the summer sun. And in Yellowstone, that's never a guarantee. In the mountains surrounding the pl

诗歌－THE HUMMING-BIRD

THE HUMMING-BIRD Of all animated beings this is the most elegant in form and the most brilliant in colors. The stones and metals polished by our arts are not comparable to(1) this jewel of Nature(2).

VOA标准英语2012--Artist Uses Special Skills to Create Wood 'Fan Birds'

Artist Uses Special Skills to Create Wood 'Fan Birds' 艺术家专注于木制小鸟传统技艺 Cedar fan birds are not considered fine art, but still they require skill and artful hands. The birds carved from wood have deep roots in Europe of the p

美国小学英语教材4:第18课 兔子彼得拯救耧斗菜(1)

PETER RABBIT SAVES THE COLUMBINE 兔子彼得拯救耧斗菜 THORNTON W. BURGESS 桑顿W伯吉斯 The very last sentence in this story says 这个故事的最后一句话是： Why, oh, why, do people want to destroy such beautiful things? 为什么？

【时间旅行者的妻子】20

I roll over onto my back and Henry props his head on his hand and looks down at me. Our faces are about six inches apart. Its so strange to be talking, almost like we always did, but the physical proximity makes it hard for me to concentrate. Did I t

【时间旅行者的妻子】30

Okay, heres your cookie. And I get one for being right. But we have to save them til were done looking at the book; we wouldnt want to get crumbs all over the bluebirds, right? Right! He sets the Oreo on the arm of the chair and we begin again at the

60秒科学:Maple Seed Flight Aerodynamics

What do a hummingbird, a moth, and a maple tree have in common? They all use a similar trick to fly. Okay, okay, a maple tree doesnt fly. But its seeds kind of do. Maples make those little whirlybird seeds you see spiraling down in droves each sprin

The Humming-Bird

THE Humming-Bird Of all animated beings this is the most elegant in form and the most brilliant in colors. The stones and metals polished by our arts are not comparable to① this jewel of Nature②. She③ has placed it least in size of④ the order

英语听力：Wild China 美丽中国：彩云之南-5

On the far side of the great Nujiang gorge, the plant hunters made a remarkable discovery. Far from the tropics, they seemed to be entering a steamy, vibrant tropical jungle--the forest of Gaoligongshan. The flora here is unlike anywhere else in the

英语听力文摘 English Digest 123、美国薄荷

English born, John Bartram spent more than thirty years exploring Northeast America in search of new plants. He discovered Asters and Goldenrod and many others, despite numerous inconveniences such as rattlesnakes. Monarda, known also as Bee Balm was

欧美人文风情第40篇:芙烈达卡萝:卡萝戴荆棘和蜂鸟项链的自画像》

We're so pleased to have Frida Kahlo's self-portrait from 1940 back with us here in Austin. 我们很开心能让芙烈达卡萝1940年的自画像回到我们身边在奥斯汀这。 Over the last two decades, the self-portrait has traveled the worl

【英语时差8，16】自然直升机

Don: [TO SELF] Number 9...osprey. Yael: Hey Don. What's up? D: I'm making a top ten list of the best animals of all time. Y: What's on the list? D: Dingo, aardvark, python, tapir, rhesus monkey, black widow, bullfrog, owl, osprey. Y: That's only nine

【英语时差8，16】尾巴吱吱叫

Don: [WHISTLING A BIRDSONG-LIKE TUNE] Ya?l: Nice tune Don, but can you whistle with your tail like an Anna's hummingbird? D: Hummingbirds can whistle with their tails? Y: Male Anna's hummingbirds, which live along the west coast of North America, can