单词：ST_science_measurements-of-speed
单词：ST_science_measurements-of-speed 相关文章
04 美国的航空航天技术 DATE=2-21-01 TITLE=EXPLORATIONS #1940 - Space Digest BYLINE=Paul Thompson VOICE ONE: This is Steve Ember. VOICE TWO: And this is Shirley Griffith with the VOA Special En
科技之光
SCIENCE IN THE NEWS -February 5, 2002: Digest VOICE ONE: This is Sarah Long. VOICE TWO: And this is Bob Doughty with Science in the News, a VOA Special English program about recent developments in sci
科技之光
BARBARA KLEIN: This is SCIENCE IN THE NEWS, in VOA Special English. Im Barbara Klein. BOB DOUGHTY: And Im Bob Doughty. Today we remember Hurricane Katrina and tell about the science of severe ocean storms. (MUSIC) BARBARA KLEIN: Many Americans are ob
2010年VOA慢速英语(八)月
SCIENCE IN THE NEWS - Severe Ocean Storms: The Science of Nature's Power This is SCIENCE IN THE NEWS, in VOA Special English. Im Barbara Klein. And Im June Simms. Today we tell about the science of severe ocean storms. Severe storms that develop over
2012年VOA慢速英语(十)月
New Camera Takes Billions of Pictures Every Second 能每秒拍摄数十亿张照片的相机_ Imagine a camera that can take one hundred billion pictures a second -- that is enough to record the fastest movements in the universe. But we do not have
2015年VOA慢速英语(一)月
A Stationary Satellite, part 2 A geostationary satellite orbitsthe planet at the same rate as the planet rotates, so the satellite is always over the same patch of ground. Cool! you say. Id like to have one of those about twenty feet over my house. S
英语听力文摘 English Digest
In the 17th century, the French scientist Pierre Gassendi knew that light traveled faster than sound. When a gun fired far away, he could see the flash of gunshot long before he heard the report. Gassendi tried to measure the speed of sound by clocki
英语听力文摘 English Digest
Like many good things, the Garp started out as an idea. A boy had been told by his Science teacher to make an instrument involving specific measurements and the number eight. Well, the idea moved around in the mind of the boy for a few days, changing
英语博客 A cup of English
SCIENCE IN THE NEWS -May 21, 2002: First electronically controlled animals / Study of mothers and their sons / Effects of global warming Broadcast: VOICE ONE: This is Sarah Long. VOICE TWO: And this i
科技之光
This is scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Predicting a hurricanes strength and speed is crucial in order to save property and lives. Right now, the only way to get accurate information is to fly
Scientific American(四)月
This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. For folks whove engaged in the strange ritual of speed dating, finding that special someone is like winning a romantic game of musical chairs. Now scient
Scientific American(六)月
'Facebook' for Scientists Could Speed Advances Social networks like Facebook allow users to keep in up with their friends. Now, a social network for scientists hopes to use the technology to speed up scientific progress. As he worked on a medical ima
VOA标准英语2011年(四月)
10 世界卫生组织制定反癫痫症计划 DATE=3-7-01 TITLE=SCIENCE REPORT - WHO Campaign Against Epilepsy BYLINE=Nancy Steinbach (Start at 59
科技之光
Swinging Physics: Potential And Kinetic Energy Working Together 动能与势能相互作用 动能是所有能看到的运动的能量，包括物体的，微粒的或质点集的运动等。 势能(Potential energy )是位置的函数，例如把一个
英语听力文摘 English Digest
Reentry Heat [Why does a space shuttle get hotter on reentry than on liftoff?] 能想象航天飞机穿越大气层时受到摩擦产生的热量有多惊人吗？来一起听听吧。 M:Dolle,we now know that the space shuttle Columbia burned up whe
英语听力文摘 English Digest
The Lithic Principle 我们生活的星球上自然法则是亘古不变的吗？我们人类是不是自我感觉太过于良好？ Time again for the mailbox.Let's see.Here:A Moment Of Science,I heard recently that if the laws of nature were change
英语听力文摘 English Digest
世界上跑得最快的是什么？答案是光速。它每秒能跑186,280英里。因为即使在太空中，光速也大致相同，所以光年也就用于描述不同星球之间的距离。记住了哦，光年是距离单位，不是时间单位
英语听力文摘 English Digest
Zippy Aliens 爱因斯坦的狭义相对论认为物体的运动速度越接近光速，时间越慢。在1971年，物理学家理查德基廷和乔伊哈夫勒验证了这个假想。他们将4个极为精确的原子钟放在一架普通航行的飞
英语听力文摘 English Digest
The Front End of the Earth 火流星看上去非常明亮，像条闪闪发光的巨大火龙，发着沙沙的响声，有时还有爆炸声。有的火流星甚至在白天也能看到。火流星的出现是因为它的流星体质量较大(质量大
英语听力文摘 English Digest
Skinny Legs and All Why do horses have skinny legs? Find out on this Moment of Science. Why do horses have skinny legs? Okay, they arent entirely skinny its mostly the (1)bottom half, with a big muscle up at the top.Thats odd. Human legs are kind of
英语听力文摘 English Digest