单词:liapunov exponent spectrum
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This is Scientific American's 60-Second Science. I'm Steve Mirsky. This will just take a minute. Pregnant women shouldn't drink. It's become gospel, because of the danger of fetal alcohol spectrum disorder. Alcohol can disturb the normal development
A Magical Glow? Have you ever wondered why fluorescent colors, like you see in highlighters or clothing dyes, for instance,seem so much brighter than other colors? Its because they seem to reflect more light than they receive! It may sound like a mag
Leaves Inspire Better Solar Panels What do leaves and solar panels have in common? Both absorb sunlight and turn it into energy. But while solar panels typically have smooth surfaces, leaves have tiny wrinkles and folds that allow for maximum light a
Angela Merkel, who has steered Germany through several global crises as its first female leader, said last Sunday that she will seek a fourth term as chancellor in general elections next year. 安吉拉默克尔上周日宣称,将在明年举行的大
Some call it the hormone of love. Its oxytocin and it helps moms bond with and breast-feed their babies, and even keeps romantic couples content. Now a study suggests that this same hormone might also help people with autismby improving their social
Don Gonyea: John Kenneth Galbraith, economist, diplomat, prolific author, Harvard professor, and iconoclast , died yesterday in Cambridge, Massachusetts. He was 97 years old, born in Canada to a farming family, Galbraith became the country's leading
新技术:开灯就有无线宽带 Bulbs could soon be used to broadcast household broadband 英国爱丁堡大学的一位教授研究出了一项新技术,能够让普通的电灯泡作为无线网络信号传输器,只要开灯,就能无线上
A new film about the adventures of Tintin, the Belgian boy reporter, opens across Europe this week. 上周,一部讲述比利时少年记者丁丁历险故事的新电影在欧洲地区上映。 The movie, directed by Steven Spielberg, faithfully d
So if Charles I was collecting, in a sense, to self-aggrandise and to make a statement about himself, whereas George III was collecting because he thought that's what a king should do, because he loved art? Yes. He would never have commissioned an im
After Luiz Gonzaga died in 1989, a statue was erected just outside Recife, the capital of his home state, Pernambuco. It marks the start of the Luiz Gonzaga Highway. Gonzaga had reminded Brazils city dwellers of the depth of music that exists out in
In Rio, African rhythms began to mix with European styles. And it was at the house of a Candomble practitioner, a priestess named Tia Ciata, Auntie Ciata, that the first song widely recognized as Carioca samba, samba from Rio, was performed in 1916.
Carmen Miranda came to symbolize Brazil for the outside world, though she had been criticized at home for becoming too westernized. Her sophisticated light-hearted songs had little to do with the everyday struggles of many ordinary Brazilians. They f
Science and Technolgy. 科技。 Visible-light communication. 可见光通信。 Tripping the light fantastic. 与光共舞。 A fast and cheap optical version of Wi-Fi is coming. 一个高速而廉价的光学Wi-Fi即将问世。 AMONG the many new
Science and technology 科学技术 Visible-light communication 可见光通信 Tripping the light fantastic 与光共舞 A fast and cheap optical version of Wi-Fi is coming 一个高速而廉价的光学Wi-Fi即将问世 AMONG the many new gadgets u
Before I talk about that, 谈到这之前 I've written down at the bottom there 我在底下标出了 the slope of this curve, this straight line. 这条曲线的斜率,即这条直线 It's three-quarters, roughly, 大约为3比4 which is less than
The renowned Taiwan cartoonist Zhu Deyong - an exponent of the hand-drawn artform - is presenting sketches showing his process to a finished product. Zhu Deyong has attended the festival several times, but this is the first time he has had an entire
How Eggs Get Their Color 鸟蛋颜色的形成 Depending on the species, bird eggs can be any color rang ing from chickens plain white to a robins blue, streaked , spotted, bright, pale, and anything in between. We take a look at some of the reasons
托福8000词汇怎么背?新东方托福考试网分享托福熟词僻义词汇总结:,让我们一起背单词吧。 address v. 应付,处理(问题等) aging n. n陈酿 appropriate v. 擅用,挪用,占用,盗用 article n. 物品;制品,