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What’s the sun made of? – Astronomy – Science

By |2018-04-24T14:46:25+00:00August 19th, 2017|Physics|

The sun from space The Sun is a star, just like billions of other stars in the universe. Our Sun probably formed a little more than four and a half billion years ago, just a little bit before the planets formed around it. It's not one of the older stars in the Universe. Probably some of [...]

European science – the Enlightenment

By |2017-08-07T21:37:41+00:00August 7th, 2017|Math, Modern Europe, Physics, Science|

Gottfried Leibniz, a German mathematician By 1650 AD, Europeans understood Islamic algebra and trigonometry better. Then they combined that with the exciting invention of the telescope and microscope. Together, these two new things led to a lot more new scientific discoveries. The Wars of Religion also got a lot of people thinking about what they really believed. How could you know for sure? [...]

What are amino acids? Organic chemistry

By |2017-06-02T23:31:28+00:00June 2nd, 2017|Biology, Chemistry|

A model of the amino acid molecule glycine (red is oxygen, black is carbon, yellow is hydrogen, and blue is nitrogen atoms) Amino acids are molecules made out of hydrogen, oxygen, carbon, and nitrogen atoms (and a little sulphur). The earliest amino acids formed in space, about 14 billion years ago, before our solar [...]

What are hydrocarbons? Simple science – Chemistry

By |2017-06-02T08:24:00+00:00June 2nd, 2017|Chemistry|

A model of a methane molecule Hydrocarbons are molecules made out of hydrogen atoms and carbon atoms. Methane is the simplest hydrocarbon molecule: just one carbon atom with four hydrogen atoms stuck to it. Because both carbon and hydrogen were common in nebulae, hydrocarbon molecules are very common in space. Many of these molecules [...]