紫外振动带

SSS 2009-12-22

In 2008 astronomers discovered surprising amounts of water molecules where planets were forming near young stars. But how, they wondered, could those molecules survive? They should have been destroyed by ultraviolet radiation. In theory, planetary du

发表于:2018-12-02 / 阅读(93) / 评论(0)

Scientific American(十二)月

VOA慢速英语20060705a

HEALTH REPORT - Health: Looking for Skin CancerBy Brianna Blake Broadcast: Tue, 4 Jul 2006 16:00:00 UTC I'm Faith Lapidus with the VOA Special English Health Report. Tanning beds produce ultaviolet ra

发表于:2018-12-07 / 阅读(90) / 评论(0)

2006年慢速英语（七）月

俄勒冈青蛙数量急剧减少的调查分析

21 俄勒冈青蛙数量急剧减少的调查分析 DATE=5-11-01 TITLE=ENVIRONMENT REPORT - Oregon Frog Study BYLINE=Cynthia Kirk （Start at 59

发表于:2018-12-07 / 阅读(55) / 评论(0)

自然探索

TED演讲：气味背后的科学(10)

Now, coumarin is a very common thing, a material, in fragrance which is derived from a bean that comes from South America. 香豆素是香水中一个十分平常的原料，从来自南美的豆子中提炼出来的。 And it is the classic syntheti

发表于:2018-12-19 / 阅读(64) / 评论(0)

TED演讲教育篇

TED演讲：气味背后的科学(5)

And...but...but...we have to go a little beyond that. 我们需要进一步深入。 Now let me explain why vibrational theory has some sort of interest in it. 现在我来解释为什么震动理论有一定的道理。 These molecules, as you saw i

发表于:2018-12-19 / 阅读(52) / 评论(0)

TED演讲教育篇

TED演讲：气味背后的科学(7)

However, I managed to get a hold of a Borane eventually, and here is the beast. 无论如何，我最终得到了一些硼烷，这就是那个怪物。 And it really does have the same -- if you calculate, if you measure the vibrational frequencies,

发表于:2018-12-19 / 阅读(75) / 评论(0)

TED演讲教育篇

TED演讲：气味背后的科学(9)

And every single part of this mechanism is actually plausible in biology. 实际上，这个机制的每一个步骤在生物领域中都是可行的。 In other words, I've taken off-the-shelf components, and I've made a spectroscope. 换句话讲，我

发表于:2018-12-19 / 阅读(41) / 评论(0)

TED演讲教育篇

SSS 2011-10-26

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Used to be if spies wanted to eavesdrop, they planted a bug. These days, it's much easier. Because we all carry potential bugs in our pocketssmartphones. One t

发表于:2018-12-24 / 阅读(94) / 评论(0)

Scientific American(十)月

80天攻克雅思核心词汇-43

automate自动化 carton纸箱 detergent去污剂 hardware硬件 harness利用 granary粮仓 junction交叉点 lever杠杆，工具 platform平台 portable便携 register注册 shield遮护 symbolize象征 tissue纸巾，组织 towel毛巾 ultraviole

发表于:2018-12-30 / 阅读(111) / 评论(0)

80天攻克雅思核心词汇

Earth and Sky:Sunscreened Plants 遮光植物

Sunscreened Plants 遮光植物 A NASA researcher is finding that alfalfa plants grow more poorly when exposed to UVB -- ultraviolet B radiation from the sun. Learn more about sunscreened plants -- today on Earth and Sky. JB: This is Earth and Sky. Eart

发表于:2019-01-02 / 阅读(144) / 评论(0)

(科普英语)Earth and Sky

英语口语大赢家Topic286:时尚太阳镜 Sun Glasses

时尚的太阳镜已经成为明星扮酷的焦点，当然粉丝们也就跟着追捧起来，古奇当然不会错过这种新兴的时尚啦，一起来领略一下时尚太阳镜的精彩吧！ Listen Read Learn Gucci: Have you read the latest issue of Hit Light Music? May: Sure. The cover star of this issue

发表于:2019-01-07 / 阅读(56) / 评论(0)

英语口语大赢家

VOA慢速英语-Health Report - Among Vitamins, D Seems Short for 'D

Studies are finding that the vitamin known for building strong bones may also help prevent many diseases. Transcript of radio broadcast: 15 July 2008 This is the VOA Special English Health Report. Vitamin D helps bones and muscles grow strong and he

发表于:2019-01-11 / 阅读(86) / 评论(0)

VOA慢速英语2008年（七）月

英语俚语天天说第325期:"防晒霜，晒伤，紫外线"英语怎么说?

Sunscreen 防晒霜 I need to apply some sunscreen every time I am going out in summer. 夏天我每次出去的时候，我都需要涂些防晒霜。 SPF 防晒系数 Sun Protection Factor An SPF of 30 means that you could be out in the sun 30 time

发表于:2019-01-17 / 阅读(50) / 评论(0)

英语俚语天天说

托福听力分学科词汇（二）

物理学 statics 静力学 motion 运动 inertia 惯性 gravitation 引力 relativity 相对 gravity 地心引力 vibration 震动 medium (media) 媒质 frequency 频率 wavelength 波长 pitch 音高 intensity 强度 echo 回声 resonance 回声，洪

发表于:2019-01-17 / 阅读(66) / 评论(0)

托福英语

NPR边听边练112:蜜蜂生活的新秘密

主餐一道：泛听练习以下段落是摘自新闻里的一些重要信息,并不是一个段落的听写。空内信息可在本新闻中全部找到,大家可以根据这些信息复述新闻。一、泛听建议： 1、完整听一遍，掌握

发表于:2019-01-22 / 阅读(91) / 评论(0)

NPR边听边练

公众人物毕业演讲第168期:比尔·奈马萨诸塞大学2014(15)

is a consequence of ultraviolet light, of latitude and climate. 这只不过是紫外线纬度和气候造成的。 There really is no such thing as race. 实际上并没有什么种族。 We're one species, each of us much much more alike than we a

发表于:2019-01-25 / 阅读(58) / 评论(0)

公众人物毕业演讲

HEALTH REPORT - Study: Sunshine and Vitamin D May Improve Lu

HEALTH REPORT - Study: Sunshine and Vitamin D May Improve Lung Cancer Survival By Cynthia Kirk Broadcast: Wednesday, May 18, 2005 I'm Gwen Outen with the VOA Special English Health Report. Sunlight he

发表于:2019-01-30 / 阅读(185) / 评论(0)

健康与经济

香港兴起怪异“食日”减肥法

A new 'health' trend in Hong Kong sees women staring straight at the sun in the belief that it will replace their need for food and even improve their vision and sleep quality, reports Oriental Daily. 据《东方日报》报道，香港女性中兴起

发表于:2019-02-15 / 阅读(139) / 评论(0)

阅读空间

日本奇葩霓虹面条你敢吃吗？

A man who created neon noodles is being scrutinised as he's refusing to reveal what exactly has given them their crazy colours. 由于拒绝披露关于五彩面条的上色细节，霓虹色面条的发明者受到严厉审视。 The fluorescent foo

发表于:2019-02-18 / 阅读(107) / 评论(0)

阅读空间

2016年CRI Secret Restaurant in Shanghai Refines High-end Dining

Kaleidoscope-like images are projected on the walls, and a long dining table lights up in a futuristic fashion. This is Ultraviolet, an exclusive eatery in Shanghai that resembles a scene from a science fiction film. The dining floor features a 10-se

发表于:2019-02-21 / 阅读(71) / 评论(0)

2016CRI中国国际广播电台

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accuracy of estimation