蓝电气石

科学美国人60秒 SSS Oldest Known Indigo Dye Found in Peru

Many people remember the colors of the rainbow by the acronym ROY G. BIV. For red, orange, yellow, green, blue, indigo and violet. Well, the color indigo just made news. Indigo gets its name from the plant Indigofera tinctoria and its relatives, whic

发表于:2018-12-24 / 阅读(60) / 评论(0)

2016年Scientific American(九)月

Numbers 民数记26

26After the plague the Lord said to Moses and Eleazar son of Aaron, the priest, 2Take a census of the whole Israelite community by families-all those twenty years old or more who are able to serve in the army of Israel. 3So on the plains of Moab by t

发表于:2018-12-30 / 阅读(65) / 评论(0)

民数记

英文短故事：The Indigo Jackal

In a jungle there lived a pack of jackals. They would hunt together to eat from the left-overs of the lions meal. One of the jackals was getting a little old. All the younger jackals bullied him and did not allow him to share the food. I have to do s

发表于:2019-01-08 / 阅读(60) / 评论(0)

英语小短文

2006年VOA标准英语-US Company Builds Large High-Flying Balloon to

By Mike O'Sullivan Palmdale, California 06 September 2006 Engineers in the California desert are testing a new communications platform that blends modern electronics with old technology. Developers say a helium-filled balloon carrying high-tech equi

发表于:2019-02-07 / 阅读(109) / 评论(0)

2006年VOA标准英语（九月）

美语听力 English Cafe 242

Topics: Preventing Violence in Schools Post Columbine; American Territories: U.S. Virgin Islands; although versus even though; lite; rate versus rank Words: campus massacre outcast bullied minor to claim clique to retaliate Caribbean inhabitant exoti

发表于:2019-02-23 / 阅读(56) / 评论(0)

美语听力 English Cafe

万物简史第306期:地下的烈火(14)

Because we can't see into the Earth, we have to use other techniques, which mostly involve reading waves as they travel through the interior. 我们无法看到地球的深处，因此不得不使用别的方法，主要包括观察波在地球内部的

发表于:2019-02-25 / 阅读(60) / 评论(0)

万物简史

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arteriovenous aneurysm

Bacillus emphysematosus