This is Scientific Americans 60-Second Science. I am Katherine Harmon. It will take just a minute. Jupiter's great red spots, it is one of the most familiar site in our solar system, it is also one of the most mysterious. Because based on most calcul

发表于:2019-01-20 / 阅读(119) / 评论(0)

Scientific American(十二)月

美国科学60秒 SSS 2013-01-15

How do you to find 1 kilogram? Easy. It's the exact mass of medal cylinder called the international prototype kilogram. IPK, for short. Kept in controlled conditions in France. But the standard kilogram has gained weight since its creation in 1875. T

发表于:2018-12-24 / 阅读(120) / 评论(0)

Scientific American(一)月

美国科学60秒 SSS 2013-01-17

This is Scientific American 60 second Science, I am Sophie Bushwick. Got a minute? Medicinal tablets are nothing new. Doctors have been dispensing pills for thousands of years. And now archaeologists have turned up some of those ancient medicines, wh

发表于:2018-12-24 / 阅读(111) / 评论(0)

Scientific American(一)月

美国科学60秒 SSS 2013-01-18

Medicinal tablets are nothing new. Doctors have been dispensing pills for thousands of years. And now archaeologists have turned up some of those ancient medicines, which were preserved in a shipwreck for close to two millennia. The 2nd-century Pozzi

发表于:2018-12-24 / 阅读(119) / 评论(0)

Scientific American(一)月

科学美国人60秒 SSS 2013-10-28

This is Scientific American 60 Seconds Science. I'm Elly Wilkeson, got minute? Our homes glow at night. Lightbulbs, TVs and now computers, E-readers, tablets and smart phones expose people to an increasing amount of light after dark. And the color of

发表于:2018-12-24 / 阅读(128) / 评论(0)

Scientific American(十)月

科学美国人60秒 SSS 2013-10-18

This is Scientific Americans 60-second science. I am Karen Hopkin. It will take just a minute. Thanks for the Wifi we can watch TV, play games and check email from the comfort of the couch. And soon we maybe able to repurpose our Wifi signals so we c

发表于:2018-12-24 / 阅读(107) / 评论(0)

Scientific American(十)月

科学美国人60秒 SSS 2013-10-25

Called grass hopper mice have an unusual favorite food. Not grass hopper, no, they really like scorpions. You can see theproblem. But the mice shrug off any scorpion things(stings).And the new study shows how. Researcher injected common house mice of

发表于:2018-12-24 / 阅读(164) / 评论(0)

Scientific American(十)月

科学美国人60秒 SSS 2013-09-17

This is Scientific Americana 60 Seconds Science, I'm Christopher Intagliata, got a minute.The Sahara desert isn't known for its greenery, but there's evidence it was once much lusher than today, dotted with waterfall and lakes, now a study suggests t

发表于:2018-12-24 / 阅读(107) / 评论(0)

Scientific American(九)月

科学美国人60秒 SSS 2013-09-18

This Scientific American 60 Second Science, I'm Sophie Bushwick, got a minute.Developed countries spend about 3 percent of all their electrical power treating waste water, the juice purified contaminated material so it can be returned safely to the e

发表于:2018-12-24 / 阅读(103) / 评论(0)

Scientific American(九)月

科学美国人60秒 SSS 2013-09-19

This Scientific Americans 60 Seconds Science. I'm Wit Games, got a minute.A bad infection can make you delirious, but mind clears once germs are gone, usually. Not so when researchers recently injected mice with taxol plasma Ganede, this parasites pr

发表于:2018-12-24 / 阅读(111) / 评论(0)

Scientific American(九)月

科学美国人60秒 SSS 2013-09-23

Iconic works of art get exhibited worldwide but as these painting's age they can become to fragile to estan travel around the globe.The pink can be visually examined to gage the integrity,but the only way to check the canvas had been to move a piece

发表于:2018-12-24 / 阅读(138) / 评论(0)

Scientific American(九)月

科学美国人60秒 SSS 2013-10-17

This is Scientific American's Sixty Seconds Science. I am K.H., this will just take a minute. Thanks to WiFi, we can watch movies, play games and check email from the comfort of the couch. And soon we may be able to repurpose our WiFi signal so we ca

发表于:2018-12-24 / 阅读(98) / 评论(0)

Scientific American(十)月

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

.scp

absolute age of groundwater

adductor muscle

aeruginosin

amorists

ampangabeite (samarskite)

Amygdalus communis L.

antihanging

apparent source

ascending face

automatic folding and thread-sealing machine