Template:Selected anniversaries/July 16: Difference between revisions

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||1714: Marc René, marquis de Montalembert born ... engineer and author.
||1714: Marc René, marquis de Montalembert born ... engineer and author.
||1932: Stanisław (Stash) Świerczkowski born ... mathematician famous for his solutions to two iconic problems posed by Hugo Steinhaus: the three-gap theorem and the Non-Tetratorus Theorem. Pic: https://www.amazon.com/Sets-Numbers-Library-Mathematics-Swierczkowski/dp/071007137X/ref=sr_1_1?s=books&ie=UTF8&qid=1535988419&sr=1-1


||1739: Charles François de Cisternay du Fay dies ... chemist. He discovered the existence of two types of electricity and named them "vitreous" and "resinous" (later known as positive and negative charge respectively). He noted the difference between conductors and insulators, calling them 'electrics' and 'non-electrics' for their ability to produce contact electrification. He also discovered that alike-charged objects would repel each other and that unlike-charged objects attract. Pic.
||1739: Charles François de Cisternay du Fay dies ... chemist. He discovered the existence of two types of electricity and named them "vitreous" and "resinous" (later known as positive and negative charge respectively). He noted the difference between conductors and insulators, calling them 'electrics' and 'non-electrics' for their ability to produce contact electrification. He also discovered that alike-charged objects would repel each other and that unlike-charged objects attract. Pic.

Revision as of 08:29, 3 September 2018