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Races and racism – Skin color and history

By |2018-04-24T11:41:04+00:00August 16th, 2017|People, Science|

An Egyptian portrait of two brothers (Roman period, about 150 AD) Biologically, there is no such thing as race. Sure, people come in a lot of different skin and hair colors. But there is no sharp division between them, only a gradual blending. And the color of your skin and your hair doesn't [...]

How to separate eggs – Food history project

By |2017-06-22T02:20:29+00:00June 22nd, 2017|Food, Southeast Asia|

Cracked egg: see the yolk and the white? For a lot of more advanced cooking, you need to be able to separate eggs. You separate eggs by separating the yellow yolk part from the transparent "white" part. (The white is the part that would turn white if you cooked the egg). You need [...]

Why was the cotton gin important? American History

By |2017-06-08T09:05:10+00:00June 8th, 2017|Clothing, North America|

Model of Indian cotton gin (1100s AD) When people in India first started to grow cotton, they picked the seeds out by hand before they spun the cotton into thread. By 500 BC, women in India used a rolling pin to get the seeds out of cotton. There's a picture of one in the [...]