Robotics, 3-D Printing, Drones Lead 2015 Tech Innovations

Robotics, 3-D Printing, Drones Lead 2015 Tech Innovations The waning years advances in computer hardware and software, mechanical devices, sensors and artificial intelligence brought the world another step closer to the robotic future. Electric cars

英语名篇名段背诵精华55 fog

Poems Fog The fog comes on little cat feet. It sits looking. Over harbor and cityon silent haunches and then moves on. By Carl Sandgurg

儿童英语读物 The Summer Camp Mystery CHAPTER 1 Shapes in the Fog

At five oclock on an August morning, the sun hadnt risen yet, but the Alden family was already up and about. The streetlamps were still on. In a few minutes, the headlights on James Aldens car were on, too. Four sleepy children trooped down the porch

英伦广角 打喷嚏形成的气流移动速度飞快

Sneeze and cough particles form a cloud whose turbulence pulls in surrounding air, which allows the goop to maintain buoyancy and move farther than expected. Cynthia Graber reports. Gordon: When you have to sneeze or cough, do it into the bend of you

60秒科学:Fog Found on Saturn's Moon Titan

Fog Found on Saturn's Moon Titan A study in Astrophysical Journal Letters reveals that Titan may be home to the familiar atmospheric condition known as fog--but made out of methane. Karen Hopkin reports The northeast just had its first big snow of th

SSS 2008-02-04

This is Scientific Americans' 60-Second Science. I'm Chelsea Wald. Got a minute? Vinaigrette dressing: when you shake it little vinegar droplets scatter through the oil, but when you put it down, the droplets merge and the dressing separates. That's

VOA标准英语2011--Cavers Explore Mysterious Hidden Wonders

Cavers Explore Mysterious Hidden Wonders Caves have a subconscious hold on our imaginations - for our ancestors, they were not just shelter from the elements but also symbols of the womb, gateways to the underworld, places of wonder and mystery. Not

VOA慢速英语 2007 1003a

This is the VOA Special English Health Report. Scientists continue to look for ways to deal with the deadly form of bird flu virus. Medical workers care for a bird flu patient in Medan, Indonesia, last year Researchers in Singapore, for example, hav

VOA标准英语2012--Dallas Attacks West Nile Virus by Land, Air

Dallas Attacks West Nile Virus by Land, Air The aerial and ground fumigation programs are blanketing around 1,400 square kilometers of the county, but don't target all mosquitoes. Laura McGowan, who works with Clarke, the company contracted to carry

VOA标准英语2010年-Dry Water Makes Waves in Fight Against

Ben Carter Powdered material called dry water, could provide a new way to store carbon dioxide in an effort to fight global warming. Dry water looks a lot like fine white sand, which isn't surprising since what makes it dry is that each tiny water dr

美国国家公共电台 NPR 'This Is Us' Creator Dan Fogelman Says He Didn't Mean To Make You Cry

ARI SHAPIRO, HOST: You might want to get your tissues. The season finale of This Is Us airs tonight. The freshman show has been a surprise hit for its network, NBC, and consistently inspired tears. The show's creator, Dan Fogelman, is getting praise

【英语时差8,16】浮云

Fact: liquid water is heavier than air. Fact: clouds, which consist of water droplets and ice crystals, seem to hover in the air. One final fact: the water droplets in a typical cloud together weigh many tons. Which raises a question: how do clouds s

英语博客(A cup of English):034 A Creeping Fog.

Beginners. Some people say that the weather is changing all over the world. Do you believe that? What do you think? I'm not sure if it is true, but sometimes the local weather does something unusual. Here in Wenatchee, the weather is normally very re

一次咳嗽会产生2万个病毒

一次咳嗽会产生2万个病毒 The next time you cough or sneeze, there is good reason to cover your mouth. As many as 20,000 viruses are expelled in an average cough, which may be sufficient to infect many people - particularly those who are not

Heavy fog delays flights in Xinjiang

URUMQI, Nov. 18 (Xinhua) -- Heavy fog in Urumqi, capital of northwest China's Xinjiang Uygur Autonomous Region, on Sunday left 87 flights delayed or diverted. Twenty-five inbound flights from cities such as Beijing, Dalian and Chengdu to Urumqi have

Fog shrouds east, central China; disrupts traffic

BEIJING, Jan. 12 (Xinhua) -- Heavy fog enveloped a large swathe of east and central China Saturday, causing highway closures and flight delays in several provinces. Beijing was shrouded in dense smog for a second straight day Saturday. The smoggy wea

Fog to hit central, E China

BEIJING, Jan. 21 (Xinhua) -- China's meteorological authorities said Monday that central and east China will be shrouded in fog through Tuesday morning. The National Meteorological Center (NMC) issued a blue alert for the fog. Blue is the lowest leve

经济学人236:金属,自己愈合吧 Metal,heal thyself

Metal, heal thyself 金属，自己愈合吧 Materials science: Researchers have devised an ingenious way for the damaged surfaces of metals to repair themselves when they come to harm 材料科学：研究人员构想出了一种新颖独特的方法，

英语听书《海底两万里》第232期 第18章 太平洋下四千里(4)

What's more, I've detected those falling and rising currents that make up the ocean's true breathing. 此外，我又注意过那些由上而下和由下而上的水流，形成真正的海洋呼吸作用。 I've seen a molecule of salt water heat up

英语听书《海底两万里》第233期 第18章 太平洋下四千里(5)

They absorb the marine salts, they assimilate the solid elements in the water, 它们吸收了海中的盐，消化了水中的固体物质， and since they create coral and madrepores, they're the true builders of limestone continents! 它们是真正