[网络] 准周期

WHISPERS FROM ABOVE

The story of how we have systematically observed the heavens begins in the days before recorded time. For primitive man, the sun reigned supreme. Its recurring cycles of light and darkness formed the

发表于:2018-11-28 / 阅读(142) / 评论(0)

疯狂英语2001年

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(72) / 评论(0)

数学英语

心灵歌汤 cycles of time

发表于:2019-01-01 / 阅读(86) / 评论(0)

心灵歌汤

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(72) / 评论(0)

Scientific American(十)月

【英语语言学习】蔬菜们的生物钟

This is SCIENCE FRIDAY. I'm Ira Flatow. You open the door of your fridge and the light goes on, right? What if the light in your fridge could stay on and be programmed to help your veggies taste better or be more nutritious? Why? Well, it turns out t

发表于:2019-02-16 / 阅读(39) / 评论(0)

英语语言学习

英语小达人 342 Dog Property Laws

Dog Property Laws 狗的财产法则 1. If I like it,it's mine. 1. 我喜欢的东西，就是我的。 2. If it's in my mouth, it's mine. 2. 在我嘴里的东西，就是我的。 3. If I can take it from you, it's mine. 3. 我能从你那儿拿过来

发表于:2019-02-17 / 阅读(45) / 评论(0)

英语小达人

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beehive type radiator