Archive for alchemy

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1667 – phlogiston theory

Phlogiston theory was a failure and eventually shown to be false. It was based on the idea that any combustible substance contained an element known as phlogiston that was released during the burning process. This had historical roots in various theories of alchemy which generally included four elements: fire, water, air and earth. The first […]

1546 – Brahe – bio

Tycho Brahe was born in 1546 in Sweden. He was an astronomer and alchemist who is known for his contributions to astronomy. While he was probably the last astronomer to work mostly without a telescope, he revolutionized the use of precise instrumentation in astronomy. Because of this precision, he was able to discover and document […]