拟离散谱

数学英语 23 What are the Range and Standard Deviation?

by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(209) / 评论(0)

数学英语

什么叫“蓝牙”（二）

Air interface tailored to minimize current consumption Basic Technical Information—Based upon a small, high performance integrated radio transceiver, each of which is allocated a unique 48-bit addre

发表于:2018-12-08 / 阅读(197) / 评论(0)

新概念英语第一册Flash第2版

真实的美国总统林肯

发表于:2018-12-11 / 阅读(160) / 评论(0)

万花筒2006年

健康生活:长生不老不是梦

Hong Kong was the staging point for a conference described as Asia's first transhumanism event, in late 2011. 2011年底，香港举办了据说是亚洲第一个超人类主义（transhumanism）活动。 (Note: don't bother to check the English-Chi

发表于:2018-12-12 / 阅读(159) / 评论(0)

实用英语

SSS 2011-03-23

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

发表于:2018-12-24 / 阅读(255) / 评论(0)

Scientific American(三)月

SSS 2009-04-29

This is Scientific Americans 60-Second Science. Im Adam Hinterthuer. Got a minute? Netflix isnt satisfied with the way its system recommends new movies to customers based on their viewing habits. So the mail-order DVD rental company has offered outsi

发表于:2018-12-24 / 阅读(185) / 评论(0)

Scientific American(四)月

新玩具帮助孩子建立情绪智力

New Playthings Help Build Emotional Intelligence in Children Children of all ages gathered in New York City recently for the International Toy Fair. Hidden among already popular toys were new, high-tech educational products. Educational products are

发表于:2019-01-03 / 阅读(228) / 评论(0)

2018年VOA慢速英语(二)月

默克尔正式宣布谋求连任德国总理

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

发表于:2019-01-07 / 阅读(403) / 评论(0)

英语新闻

SSS 2010-02-16

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

发表于:2019-01-08 / 阅读(194) / 评论(0)

Scientific American(二)月

SSS 2011-10-05

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.

发表于:2019-01-08 / 阅读(304) / 评论(0)

Scientific American(十)月

新技术：开灯就有无线宽带

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

发表于:2019-01-08 / 阅读(233) / 评论(0)

轻松英语

经济学人23:高速而廉价的光学Wi-Fi即将问世

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

发表于:2019-01-26 / 阅读(235) / 评论(0)

经济学人科技系列

中国布局引力波探测

Chinese scientists have announced a gravitational wave research plan they're dubbing Taiji. The Chinese Academy of Sciences says their research plans will be finalized later this year. Academy member Wu Yueliang says their research will focus on low

发表于:2019-02-02 / 阅读(212) / 评论(0)

英语新闻

经济学人221:可见光通信与光共舞

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

发表于:2019-02-06 / 阅读(214) / 评论(0)

经济学人科技系列

经济学人: 热带疾病 (1)

Malaria killed 435,000 people last year, most of them in Africa. 去年435,000人死于疟疾，其中大部分在非洲。 The parasite that causes the illness is carried by females of some, but not all, species of mosquitoes of the genus Anopheles.

发表于:2019-02-16 / 阅读(199) / 评论(0)

经济学人科技系列

It’s Time to Change Your Life

Its Time to Change Your Life Too often we come home after a long day at work and open the takeout food, then plop down on the couch and watch TV until its time for bed. The next day, we do the same thing again. While I have been known to indulge in t

发表于:2019-02-18 / 阅读(163) / 评论(0)

阅读空间

英语歌曲:Someone's Got A Crush On Me

Ally Kerr是来自苏格兰的Indie pop乐队（也是主唱的名字），融合了苏格兰传统民谣和清新独立流行风格，旋律悦耳而淳朴。如此清新系的男声一向是小编的大爱，每每听到这样的声音就觉得生活

发表于:2019-02-18 / 阅读(190) / 评论(0)

好听的英文歌曲

深入浅出的英语口语

Glossary for Telecomunications This glossary helps explain some of the acronyms and technical phrases Bluetooth A short-range wireless technology designed to allow connection of portable devices in a wire-free manner. For example connection of a wire

发表于:2019-02-18 / 阅读(208) / 评论(0)

实用英语

TED演讲:电击疗法如何改变了我(5)

And they tried everything they had. 住院后，医生尽其所能。 They tried the usual psychotherapy. 他们试了常规的心理疗法， They tried every medication available in those days. 也尝试了那个时候所有可能的药物。 And t

发表于:2019-03-04 / 阅读(226) / 评论(0)

TED演讲教育篇

经济学人385:巴基斯坦的移动通信业

Mobile telecoms in Pakistan 巴基斯坦的移动通信业 At last, 3G 终于等到你，3G The government raises a bit of money and gets a long-awaited industry started 政府筹集到了一定资金，启动了长期停滞的产业 Now we can reall

发表于:2019-03-09 / 阅读(261) / 评论(0)

经济学人商业系列

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artificial obstruction

axial force on blade wheel