文档公开 苹果自动驾驶系统曝光!

Apple has been granted a permit to test self-driving cars by the California Department of Motor Vehicles but the company has never said anything about its plan. 苹果公司已经获得了加利福尼亚州车辆管理局允许其进行自动驾驶汽车

英国学生科学读本 第4期:黑铅

Lesson 4 Black-lead 第四课 黑铅 What is the black-lead in your pencil made of? If you take a bit of the metal which we call lead, you will find that it is grey in colour, very heavy, and not at all like the black-lead in your pencil. But the lea

The New Age of Nuclear Power

The New Age of Nuclear Power By Spencer Reiss / Originally published in Wired . Get ready for the mass-produce, meltdown -proof future of nuclear energy 1 A team of Chinese scientists advising the Bei

美国科学60秒 SSS 2012-12-17

This Scientific Americans podcast is sponsored by audible.com, the number-one online resource for best-selling audio books and more. And now audible.com is offering Scientific American listeners a free audio book of your choice. For details go to aud

VOA常速英语2008年-Australia, New Zealand Lead Earth Hour Environm

By Phil Mercer Sydney 29 March 2008 Australians switched off their lights for 60 minutes Saturday to mark Earth Hour, a campaign by environmentalists to raise awareness about global warming. The event was started a year ago in Sydney by the World Wil

SSS 2011-09-09

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Common batteries are electrochemical cells. And they may get better thanks to living cells: the multicellular organism called brown algae. Lithium ion

未来家庭和办公室的样子

Microsoft has unveiled its vision of what the home and office of the future will look like - and there are giant screens everywhere. 微软展示了未来家庭和办公室的愿景，四处都是大屏幕。 The computer giant produced the concept v

VOA慢速英语2011-Health Report - Iron, Vitamin D May Lead

This is the VOA Special English Health Report. Many people have low iron in their blood. But pregnant women need extra iron for their own health and their baby's health. Iron is important to the development of a baby's brain and central nervous syste

英国学生科学读本 第64期:红色金属--铜(2)

Copper can be rolled or hammered out into thin sheets, and so we say that it is malleable. It can also be easily drawn out into wire, and for this reason we call it ductile. Sheet copper is much used for covering the bottoms of ships, and for making

原汁原味商务英语播客 第70课:考虑提议(下)

This is the second in a two-part Business English Pod series about an internal meeting to consider a proposal. 这是2节商务英语播客的第2节，将要学习到在内部会议中考虑提议。 As we saw in the last episode, this type of meeti

TED演讲：学校扼杀创造力(12)

What I think it comes to is this: Al Gore spoke the other night about ecology and the revolution that was triggered by Rachel Carson. 现在，我想说的是：AL Gore曾在这里做过一次演讲，内容是关于生态学以及Rachel Carson引发的

美国军队将参加约旦多国军事演习

WASHINGTON, May 19 (Xinhua) -- U.S. troops will take part in a multinational military exercise in Jordan next week in a bid to demonstrate the U.S. commitment to security and stability in the region, the Pentagon said Monday. About 6,000 U.S. troops,

学个词Learn a Word 第1506: bearing

今天我们要学的词是bearing. Bearing is spelled b-e-a-r-i-n-g, bearing. Bearing 意思是关系，意义。我们常用 to have bearing on something 意思就是同某事有关系，对某事有影响。The decision had much bearing on the way

英国学生科学读本 第39期:柔韧的软金属-铅(2)

When the sheets are very thin, they are called lead-foil. A great deal of lead-foil is used in China, to line the chests in which tea is sent to Europe. 特别薄的薄片儿就叫做铅箔, 中国就是用大量的铅箔来垫在茶叶箱里, 做成铅

中英双语新闻——130 If zombies invade...

Zombie apocalypses. Robot revolutions. These may seem like impossibilities, but many people prepare for these events on a daily basis. 僵尸启示录，机器人革命。这些听起来像是天方夜谭，但很多人日复一日地为这些事变时

别人家的马路：巴黎自行车将被允许闯红灯

Cyclists in Paris are to be allowed to ride through some red lights in a bid by the mayors office to get more people on their bikes. 在巴黎骑自行车的人将被允许闯一些红灯，市长办公室此举是为了鼓励更多的人骑自行车。

经济学人:货币的半衰期 (2)

To make the numbers easier to grasp, they have provided an alternative way to express them. 为了让大家更好理解这些数据，他们提供了另一种表述方式。 They calculate how long it would take for prices to double, if inflation per

女性单独外出的十大注意事项

1. Awareness 有自我保护意识 True self-defence begins long before any actual physical contact: awareness of yourself, your surroundings, and your potential attacker's likely strategies. 在遭受任何攻击前，就要早早地有真正的自卫

俄罗斯确认恐怖袭击导致空难

The head of Russia's Federal Security Service Alexander Bortnikov revealed that the plane crash was the result of a terrorist attack, and that explosives were used to orchestrate it. According to our experts, a homemade explosive device equivalent to

TED演讲 4D打印机的诞生(5)

So I know you're probably thinking, okay, that's cool, 我知道大家现在大概会想，好吧，看着挺酷的， but how do we use any of this stuff for the built environment? 但是我们怎么把它应用到生产环境里？ So I've started