Happy birthday to chemistry trailblazer Marie-Anne Paulze Lavoisier (20 January 1758 – 10 February 1836), wife and collaborator of French scientist Antoine Lavoisier (26 August 1743 – 8 May 1794).
The Lavoisiers, working closely together, modernized and quantified chemistry and the scientific method, named oxygen and hydrogen, explained the role that oxygen plays in combustion, 🧵1/n
#linocut #printmaking #sciart #womenInSTEM #histsci #chemistry #chemist #MastoArt
Black velvet #malachite display piece looking phenomenal in this light. Don't you just want to reach out and pet it like a precious little kitten? Very good looking piece.
British scientist Rosalind Franklin died #OTD in 1958.
Her most famous contribution to science came from her X-ray diffraction images of DNA, particularly Photo 51, which provided crucial evidence for the double helix structure of DNA. Her photo was shared without her knowledge with J. Watson & F. Crick, who used it as a basis for their model of DNA's structure. Their work overshadowed her contribution, & she was not fully recognized for her role until after her death.
Belgian chemist, industrialist and philanthropist Ernest Solvay was born #OTD in 1838.
He is best known for his pioneering work in the chemical industry and for the establishment of the Solvay process for the manufacture of soda ash (sodium carbonate). In 1911, he began a series of important conferences in physics, known as the Solvay Conferences, whose participants included Max Planck, Ernest Rutherford, Maria Skłodowska-Curie, Henri Poincaré, and Albert Einstein.
English chemist Dorothy Hodgkin was born #OTD in 1910.
Among her most influential discoveries are the confirmation of the structure of penicillin as previously surmised by Edward Abraham and Ernst Boris Chain; and mapping the structure of vitamin B12, for which in 1964 she became the third woman to win the Nobel Prize in Chemistry. Hodgkin also elucidated the structure of insulin in 1969 after 35 years of work.
French chemist Antoine Lavoisier died #OTD in 1794.
He is best known for his development of the law of conservation of mass, which states that mass is neither created nor destroyed in chemical reactions. This principle helped to debunk the phlogiston theory, which was a prevailing theory at the time that suggested substances released a material called "phlogiston" when they burned. He also made significant contributions in understanding respiration as a form of combustion.
Toxic Gaslighting: How 3M Executives Convinced a Scientist the Forever Chemicals She Found in Human Blood Were Safe
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Decades ago, Kris Hansen showed 3M that its PFAS chemicals were in people’s bodies.
Her bosses halted her work.
As the #EPA now forces the removal of the chemicals from drinking #water, she wrestles with the secrets that 3M kept from her and the world.
#News #Science #Chemistry #Safety #Environment #Minnesota #PFAS #ForeverChemicals
"Would it not be better if one could really 'see' whether molecules...were just as experiments suggested?"
the question that decided her to specialize in X-ray cristallography, as quoted by Sharon Bertsch McGrayne (1998). Nobel Prize women in science: their lives, struggles, and momentous discoveries. Joseph Henry Press. p. 231
~Dorothy Hodgkin (May 12, 1910 – July 29, 1994)
#OTD in 1803.
British scientist John Dalton begins using symbols to represent the atoms of different elements.
In his laboratory notebook there is a list in which he set out the relative weights of the atoms of a number of elements, derived from analysis of water, ammonia, carbon dioxide, etc. by chemists of the time.
https://en.wikipedia.org/wiki/John_Dalton#Atomic_theory
Books about John Dalton at PG:
https://www.gutenberg.org/ebooks/56648
Russian chemist Vera Yevstafievna Popova was born #OTD in 1867.
Popova became known for her work in organic chemistry, a field that was rapidly developing in the late 19th century. She contributed to research on the synthesis of chemical compounds, particularly focusing on organic substances. One of her most significant areas of study was the preparation of peroxides. It was her work on these compounds that led to her untimely death.
