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The Ultimate Pitching Machine B y Tom McNichol / Originally published in WIRED Hardware and hard science are turning big-league ballplayers into precision-guided flamethrowers 1 I t’s the fastest hu

科学美国人60秒 SSS 2013-09-20

This is Scientific American 60-second Science,I'm Cynthia Graber.This will just take a minute.Iconic works of art get exhibited worldwide.But as those paintings age,they can become to fragile to extend travel around the globe.The paint can be visuall

SSS 2012-06-26

A planet sees what we see, a planet sees light. Danel ** director of NANA center for planet boi-sciences at tele university, and the author of a new book, what a planet knows?. so he takes someone who is completely blind and by observe in some way gi

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Short Conversation 询问有关产品方面的问题 A:Can you explain this product to me？ B:Our device analyzes material without damaging the product.Just point the infrared light to a target and the machine gives you numeric data. A:Very interest

有声英文阅读-彩虹来自何方

Where Do Rainbows Come From? Throughout history, rainbows have been a source of mystery and legend. Rainbows are also important symbols in a number of cultures around the world. In the Old Testament o

双语有声阅读:Where Do Rainbows Come From? 彩虹来自何

Where Do Rainbows Come From? 彩虹来自何方 Throughout history, rainbows have been a source of mystery and legend. Rainbows are also important symbols in a number of cultures around the world. In the Old Testament of the Bible, for example, God s

VOA慢速英语2017 高科技实验室使用飞机绘制亚马逊地图

Looking at a rainforest from high in the sky, you might think all the trees look about the same. 从天空高处向下看热带雨林，你可能会觉得所有的树木都是一样的。 But they are not. 但它们是不同的。 Take, for example,

VOA慢速英语2017--羊竟可以识别人脸

University of Cambridge scientists have trained sheep to recognize the faces of famous people. The scientists hope facial recognition may help with their understanding of neurodegenerative diseases. The researchers showed the sheep pictures of people

电信专业英英词典O-1

OAM operation administration maintenance OCC other common carriers Ohms Restriction Ohms Restriction is the same as Ohms resistance. Ohms are measures of resistance. A resistance of one Ohm allows one

万花筒 2010-03-30&04-01 真的有隐身斗篷？

-It's an amazing technology, and the trick to it is really creating a material that can bend light waves. In this case it's infrared waves. So we can't actually see them, that's next. -Well,let's see, I think we got a graphic here that describes how

SSS 2008-03-13

This is Scientific American's 60-Second Science. I'm Steve Mursky. Got a minute? Orbiting around stars far far away is sand. Astronomers have found sandy particles circling a pair of stars about 2,400 light years from us. And they think they might be

SSS 2010-11-05

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Five very old galaxies are now known to astrophysicists, thanks to Albert Einstein. A century ago, Einstein predicted an effect called cosmic gravitational lensing. Pictur

SSS 2012-03-15

This is Scientific American 60 Second Science, I am Karen Hopkin, this will just take a minute. Every year, about 10 million tons of paper winds up in American landfills and incinerators, which is not only wasteful but adds CO2 to the atmosphere. Rec

美国国家公共电台 NPR A 4 Billion Light-Year Journey Ends At The South Pole

MARY LOUISE KELLY, HOST: Scientists announced today that for the first time, they have been able to pinpoint the source of a particle called a high-energy neutrino. It was detected by an observatory at the South Pole. And as NPR science correspondent

VOA慢速英语2016 利用大窗户吸收太阳能

Large Windows Could Capture Solar Energy 利用大窗户吸收太阳能 Solar cells have been around since the 1950s. But now there is a race to develop transparent solar cell that can cover windows of buildings and still capture the suns light for e

VOA慢速英语2014 高新技术材料给建筑降温,将热量送入太空

High-Tech Material Cools Buildings, Sends Heat Into Space 高新技术材料给建筑降温,将热量送入太空 Researchers at Stanford University have developed a new material that can move heat out of buildings and into space. The researchers say

Mystery of star explosion 2000 years ago solved

BEIJING, Oct. 26 (Xinhuanet) -- The question, why the first documented supernova was super-sized and grew so fast, has puzzled astronomers for centuries. Now it is solved by US researchers. The supernova, an exploded star, was observed in 185 A.D. an

传说中,彩虹象征什么?

【原文】 Where Do Rainbows Come From? Throughout history, rainbows have been a source of mystery and legend. Rainbows are also important symbols in a number of cultures around the world. In the Old Testament of the Bible, for example, God shows N

经济学人: 热带疾病 (1)

Malaria killed 435,000 people last year, most of them in Africa. 去年435,000人死于疟疾，其中大部分在非洲。 The parasite that causes the illness is carried by females of some, but not all, species of mosquitoes of the genus Anopheles.

苹果手表又曝“纹身门”

With a variety of bands, and price tags ranging all the way from $349 $17,000, theres an Apple Watch for everyone. Except, possibly, the heavily tattooed. 面向大众推出的Apple Watch，款式多样，价格从349美元到17000美元不等。现在