2010年Scientific American's Six

This is Scientific Americans 60-Second Science, Im Steve Mirsky. Got a minute? The 2010 Nobel Prize in Physics goes to the University of Manchesters Andre Geim and Konstantin Novoselov for their investigations of the two-dimensional material graphene

发表于:2019-01-08 / 阅读(225) / 评论(0) 分类 Scientific American(十)月

This is Scientific Americans 60-Second Science, Im Steve Mirsky. Got a minute? The 2010 Nobel Prize in Chemistry goes to the University of Delawares Richard Heck, Purdues Ei-ichi Negishi and Hokkaido Universitys Akira Suzuki for their work in develop

发表于:2019-01-08 / 阅读(211) / 评论(0) 分类 Scientific American(十)月

The clues are adding up to give a picture of a distant Martian past, when the planet had a thick atmosphere that was warm enough for water to stream on the surface. But now the waters gone, and the atmosphere is so thin that any water would boil away

发表于:2019-01-08 / 阅读(193) / 评论(0) 分类 Scientific American(十)月

You're in the supermarket, and a man collapses. He's gasping. It's CPR time. But wait, was it 20 compressions, two breaths, or 15 to every one breath? Can't remember? Well you may not have to. Because theres hands-only CPRpressing the chest fast and

发表于:2019-01-08 / 阅读(227) / 评论(0) 分类 Scientific American(十)月

This is Scientific Americans 60-Second Science. Im Christie Nicholson. Got a minute? Is it an old wives tale or can deaf people actually see better? Scientists have long thought that the structure of our brain is fixed. For instance, from birth the a

发表于:2019-01-08 / 阅读(254) / 评论(0) 分类 Scientific American(十)月

This is Scientific Americans 60-Second Science, Im Karen Hopkin. This will just take a minute. Blackjack, slot machines, good ol Texas holdem. People love to gamble. And were not the only ones. A new study shows that pigeons will also pass up a sure

发表于:2019-01-08 / 阅读(194) / 评论(0) 分类 Scientific American(十)月

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? You don't have to be a champagne buff to want the best flavor from your bubbly. So the secret to a perfect glass? It's all in the pour, according to a study in

发表于:2019-01-08 / 阅读(185) / 评论(0) 分类 Scientific American(八)月

Which of these guys would you guess is stronger? Him? One of us is in deep trouble. Or him? Im having a party, and youre invited! If you chose Arnold over Pee Wee, its not just because youre an astute student of popular culture. A new study shows tha

发表于:2019-01-08 / 阅读(198) / 评论(0) 分类 Scientific American(六)月

Thats a shout World Cup enthusiasts dont hear too frequently. Soccers known for low-scoring games, which makes it difficult to find an objective means of measuring the skill of top players. In a given game, a couple might nail a goal or have an assis

发表于:2019-01-08 / 阅读(204) / 评论(0) 分类 Scientific American(六)月

Over the years, people have put forth a lot of theories to explain why intelligence differs, from person to person and even around the world. Health, wealth, schooling, nutrition, and even climate have all come up. Now, researchers at the University

发表于:2019-01-08 / 阅读(180) / 评论(0) 分类 Scientific American(七)月

Sometimes it seems theres only so much we can learn about dinosaurs. We cant know what their coloration looked like, we cant watch them interact with each other. We can only extrapolate from their remains. But now scientists say we can discern a hint

发表于:2019-01-08 / 阅读(247) / 评论(0) 分类 Scientific American(七)月

Teachers get exasperated at studentsthey dont pay attention, theyre sleepy, they have bad attitudes. But improvement could be a matter of timingjust start school later. Thats according to a study in the Archives of Pediatrics and Adolescent Medicine.

发表于:2019-01-08 / 阅读(175) / 评论(0) 分类 Scientific American(七)月

Die-hard advocates of alternate energy might fantasize about cars that could one day run on water. But scientists in India have gone a step further. Theyve mathematically modeled an engine that should allow a motorcycle to run on aircompressed air, t

发表于:2019-01-08 / 阅读(209) / 评论(0) 分类 Scientific American(七)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. When it comes to elections, sometimes we vote with our heads and sometimes with our hearts. But scientists at Stanford say we might also be voting with our

发表于:2019-01-08 / 阅读(167) / 评论(0) 分类 Scientific American(七)月

More carbon dioxide emissions lead to more CO2 dissolving in the oceans, which turns the water acidic. Those sour seas slow the growth of corals. And it turns out acidic seawater also makes clownfish and damselfish suicidally bold and reckless, accor

发表于:2019-01-08 / 阅读(183) / 评论(0) 分类 Scientific American(七)月

City planners and citizens alike frequently push for better public transportation. They argue that it can lessen traffic and reduce emissions from cars. Now theres a new reason to be gung-ho about public transitit helps make people skinnier. Thats ac

发表于:2019-01-08 / 阅读(159) / 评论(0) 分类 Scientific American(七)月

Being beautiful has its advantages. It can make you more popular, even make you seem more competent. Now, University of Haifa researchers have found that, if youre a politician, good looks will also make you seem more newsworthy. Because better-looki

发表于:2019-01-08 / 阅读(174) / 评论(0) 分类 Scientific American(七)月

Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated some of the essential genes that allow bacteria to tolerate their harsh living conditionsbecause these same genes might help in the creation of

发表于:2019-01-08 / 阅读(256) / 评论(0) 分类 Scientific American(七)月

This is Scientific Americans 60-Second Science, Im Karen Hopkin. This will just take a minute. Youve tried everything to lose weight: portion control, fasting, liquid diets, even eating meals on a treadmill. Now, a new study suggests that maybe you s

发表于:2019-01-08 / 阅读(189) / 评论(0) 分类 Scientific American(十)月

Clothing is so yesterday. I mean, really, what can it do? It cant pick up sound, or beep at us if somethings wrong. Or can it? M.I.T. researchers say theyve developed a fiber that would allow clothing to eventually do those things. Their study is in

发表于:2019-01-08 / 阅读(187) / 评论(0) 分类 Scientific American(七)月
学英语单词
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acheilia
acid - base indicator
Adams, Henry Brooks
aerial contact line
agarfitine
algophobias
antihepatotoxic
Aphis glycines Matsumura
areatas
arsenic diiodide
axially-ventilated motor
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benzenamine
beta contamination indicator
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brass-plated
building mortar
business circles
Callitroga macellaria
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distincin
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drove-road
drug metabolism enzyme
duty receipt
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electro-control converter
endorphines
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ganglia plexuum sympathicorum
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multiplecore
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non-central chi-square distribution
number of lengths
oil spoon
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pergelic temperature regime
photoelemen
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picket
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roll subsidence mode
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tear sb away
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update data
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