Science and technology 科技 Molecular Biology: Folding Stuff 分子生物学:折叠 Shape determines a protein's function. Determining that shape, though, is tricky. 蛋白质的结构决定功能,而结构的形成却很难。 ABOUT 120,000 ty

发表于:2018-12-05 / 阅读(56) / 评论(0) 分类 经济学人科技系列

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Are your car bumpers riddled with scars from encounters with tight parking spaces? Did the furniture movers scratch your floor? Wouldn't it be great if t

发表于:2018-12-24 / 阅读(85) / 评论(0) 分类 Scientific American(四)月

Science and Technology 科技 Sexual Attractiveness: My chemical romance 性感吸引:我的化学浪漫 Two putative human sex pheromones turn out not to be. 关于人类的两种性信息素的假说被证明是不成立的. For several decades b

发表于:2018-12-30 / 阅读(67) / 评论(0) 分类 经济学人科技系列

Three Scientists Win Nobel Prize in Chemistry Three scientists have won the Nobel Prize for chemistry for their work to simplify and improve the imaging of biomolecules. 三位科学家因为在简化和改善生物分子成像方面的成就获得了诺

发表于:2019-01-03 / 阅读(183) / 评论(0) 分类 2017年VOA慢速英语(十)月

This is Scientific American 60 second Science I am Sophie Bushwick, got a minute? As it ages, white paper turns a distinctive yellow. But why? To find out, scientists artificially aged modern paper to reveal the changes on the molecular level. The re

发表于:2019-01-08 / 阅读(90) / 评论(0) 分类 Scientific American(四)月

AS IT IS 2016-10-05 Nobel in Chemistry Goes to Makers of Worlds Smallest Machines 2016诺贝尔化学奖:世界上最小的机器 Three scientists have won the Nobel Prize in Chemistry for their work in developing tiny machines. The three men are Jea

发表于:2019-01-12 / 阅读(86) / 评论(0) 分类 2016年VOA慢速英语(十)月

Olive oil is 100% fat; there's nothing else in it. 橄榄油含有100%的脂肪,除此之外没有别的。 Pancake mix, on the other hand, is only about 11% fat. 相反,煎饼只有约11%的脂肪。 And, yet, olive oil is good for you, and panc

发表于:2019-01-17 / 阅读(77) / 评论(0) 分类 TED演讲教育篇

How many people here are 40 years old or older? You're afraid to admit it now. 在座的有多少人已经四十多岁了?你不想承认了吗? This initial step into the disease, this presence of amyloid plaques accumulating, can already be fou

发表于:2019-01-18 / 阅读(58) / 评论(0) 分类 TED演讲国际问题篇

乌东激战考验乌克兰 Government security forces faced fierce resistance Monday from pro-Russian separatists in eastern Ukraine, while officials in Kyiv say the military is steadily gaining control of the region. Some observers question whether

发表于:2019-01-19 / 阅读(71) / 评论(0) 分类 VOA双语新闻 2014年5月

Science and Technolgy 科技 Social science 社会科学 Wisdom about crowds 关于群体的思考 To model the behaviour of humans en masse, treat them as people, not molecules 在为人类的全体活动建立模型时,要将他们看作是人,而

发表于:2019-01-26 / 阅读(85) / 评论(0) 分类 经济学人科技系列

Science and Technology 科技 Combating addiction 打擊毒瘾 Can a vaccine stop drug abuse? 疫苗能阻止药物滥用吗? It may be possible to vaccinate people against addictive drugs 人们也许能通过疫苗来阻止成瘾药物的使用 T

发表于:2019-01-26 / 阅读(99) / 评论(0) 分类 经济学人科技系列

MOSCOW, April 8 (Xinhua) -- Russia's secret service confirmed Tuesday that Doku Umarov, listed as a terrorist by both Russia and the United States, had been killed in an anti-terror operation. In the first quarter of 2014, the activity of Umarov, the

发表于:2019-01-30 / 阅读(68) / 评论(0) 分类 英语新闻

科学技术 Combating addiction 打击毒瘾 Can a vaccine stop drug abuse? 疫苗能阻止药物滥用吗? It may be possible to vaccinate people against addictive drugs 人们也许能通过疫苗来阻止成瘾药物的使用 THE idea of vaccin

发表于:2019-02-05 / 阅读(114) / 评论(0) 分类 经济学人科技系列

ISTANBUL There have been more clashes in Turkey's capital, Ankara, between anti-government protesters and security forces, as civil unrest in the country continues. The prime minister condemned the protesters and called for calm. Protests are also co

发表于:2019-02-08 / 阅读(72) / 评论(0) 分类 英语新闻

[1] The worst may be over in the Northeast as a strong winter storm is tapering off. Already, more than 21 inches of snow has fallen in New York. Crews at airports from Philadelphia North are now trying to clear the runways. [2] The shows are going o

发表于:2019-02-11 / 阅读(134) / 评论(0) 分类 美联社新闻一分钟2010(三月)

But of course, life is more than just exotic chemistry. 但是当然,生命不仅仅是奇异的化学物质。 How do you stabilize those huge molecules that seem to be viable? 那是怎么稳定那些大量的、似乎有存活的分子的呢?

发表于:2019-02-14 / 阅读(69) / 评论(0) 分类 TED演讲教育篇

Proteins are what you get when you string amino acids together, and we need a lot of them. 你把氨基酸串在一起,就得到了蛋白质。我们需要大量的蛋白质。 No one really knows, but there may be as many as a million types of pro

发表于:2019-02-17 / 阅读(52) / 评论(0) 分类 万物简史

The temperature six miles up can be -70 degrees Fahrenheit, and you would need, or at least very much appreciate, supplementary oxygen. 10公里高空的温度会降至零下57摄氏度,你需要补充氧气,至少很希望这么做。 After you

发表于:2019-02-25 / 阅读(59) / 评论(0) 分类 万物简史

Nor does abundance necessarily relate to importance. 风度与重要程度也不一定有关系。 Carbon is only the fifteenth most common element, accounting for a very modest 0.048 percent of Earth's crust, but we would be lost without it. 碳只居

发表于:2019-02-25 / 阅读(65) / 评论(0) 分类 万物简史

Amd of course, you've just heard and you already know that we're running out of antibiotics. 当然,你一定听说过,而且你早就知道了,我们快要没有有效的抗生素了。 Bacteria are incredibly multi-drug-resistant right now, a

发表于:2019-03-04 / 阅读(89) / 评论(0) 分类 TED演讲教育篇