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American science after colonization

By |2018-04-08T11:21:58+00:00September 28th, 2017|Americas, Native American, North America, Science|

European trade goods (thanks to Nebraska Game and Parks Division) North American people made rapid scientific advances in the course of the 1500s AD, inspired by contacts with traders and explorers from Europe. People learned how to tame horses and ride them, and they learned how to use guns. They also began to use a [...]

What is uranium? Atoms, elements, chemistry

By |2018-04-16T23:49:23+00:00June 2nd, 2017|Chemistry, Physics|

Diagram of a uranium atom Uranium is a rare atom, not just on Earth but also in space and on other planets. There is not very much uranium anywhere. That's because, like lead or gold, uranium only forms inside exploding supernovas. Because uranium atoms have so many protons and neutrons in them, they don't [...]