Discover and read the best of Twitter Threads about #Chemistry

Most recents (9)

How about a thread on all the times Science actually wasn't settled? Let's start way back and go from there. Feel free to add - this is just off the cuff and what I could think of in between doing burnouts in my muscle car. #science
360 BC #aristotle posited #aether as a substance needed to explain physical phenomenon. In Aristotles mind Aether helped explain momentum. Newton hadn't been born yet & thus no laws of motion. Instead, he figured some substance acted upon objects in motion, keeping them in motion
This first theory of Aether (there would be more) was of course later debunked by Newtons Laws of Universal Motion.
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- W Brian Arthur at SFI today

#evolution #innovation #invention

- W Brian Arthur at SFI today

#evolution #innovation #invention #technology #engineering #design

W Brian Arthur on sumulating #invention on a chip:
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Thread: Another overview amazing #Muslim *female* achievement.

Did you know the first university in the world was built by a Muslim woman approx 1200 years ago?

This is the story of Fatima Al-Fihiri (800–880 CE). #BadassWoman #twitterstorians

2. Daughter of a wealthy businessman, the family moved from Tunisia to Fez, Morocco during the rule of King Idriss II. When both her husband and father died, Fatima and her sister inherited a fortune.

They chose to spend their inheritance on building educational institutions.
3. In 859, Fatima built the Al-Qayrawan #Mosque, decorated in the Andalusian style with Kufic calligraphy (early style) engraved throughout. At 3,000 sq ft, it can fit 22,000 people.

She stacked it with Islamic works (Qur’ans, #Hadith collections, etc).
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@IWS_Network #VoicesIWS /1
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(1/14) So this is going to be my first true long post to Twitter and I am also covering the debate surrounding the banning of plastic straws. As such, I am rather nervous and I can only hope that this turns out alright! #StrawBan
(2/14) I want to focus on an alternative material used in drinking straws. This material is chitosan, which is also sold under the name of “REPA” amongst others. Chitosan is a biodegradable polymer made from renewable materials used to make flexible straws. #StrawBan
(3/14) Firstly, I shall cover the science. Chitosan is a modified form of chitin. Chitin is taken from renewable sources and deacetylated. This typically occurs through treating it with sodium hydroxide in an aqueous solution. #Chemistry #MaterialsScience
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5 Boron B, named after the mineral borax which the element was first extracted from using electrolysis by British Chemist Humphry Davy who called it boracium. The -on suffix came later by analogy with carbon. #EotE #etymology #Chemistry #Science #Language
6 Carbon C, named from Latin for coal: carbo. Late 18th Century French scientists demonstrated graphite, charcoal & diamond made of same element naming it carbone, 1st listed by Antoine Lavoisier in famous 1789 chemistry textbook. #EotE #etymology #Chemistry #Science #Language
7 Nitrogen N, confusion in 16th C led to natron (sodium carbonate) & saltpeter (potassium nitrate) both being named nitre in French. French chemist Jean-Antoine Chaptal named the new gas nitrogene, -gène, producing from Greek -γενής #EotE #etymology #Chemistry #Science #Language
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Etymology of the Elements #EotE. This thread will build to explain the name of each of the 118 chemical elements in the periodic table. #etymology #Chemistry #Science #Language

More in The Secret Life of the Periodic Table, 3rd edition out now!…
1 Hydrogen, named from ancient Greek ὑδρο- hydro meaning "water" and -γενής genes meaning "creator" by French Chemist Antoine Lavoisier as it forms water when burnt in air 2H₂+O₂→2H₂O #EotE #etymology #Chemistry #Science #Language
2 Helium, named from the Greek Titan of the Sun Helios (ἥλιος) as it was first seen by the unique yellow light in emits from the Sun by French astronomer Jules Janssen during a total solar eclipse 1868 #EotE #etymology #Chemistry #Science #Language
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