Happy birthday to Danish #seismologist Inge Lehmann (1888 – 1993) who demonstrated that the Earth’s core is not a single molten sphere, but contained an inner solid core, in ‘36. She was a pioneer #womanInScience, a brilliant seismologist & lived to be 105.
As she first postulated, the #earth has roughly 3 equal concentric sections: mantle, liquid outer core & solid inner core. The crust, on which we live is merely 
1/n
Happy birthday to British #engineer, #mathematician, #physicist & #inventor Hertha Ayrton (1854-1923). I’ve shown her in my #linocut with a diagram of the dividers from her 1st of 26 (!) patents, one of her diagrams about the origin & growth of ripple marks & one of her diagrams of an electric arc lamp (a subject on which she literally wrote the textbook).
Born Phoebe Sarah Marks, she was the 3rd of 8 children
Happy birthday to #mathematician Felix Klein (1849-1925). This is a hand-carved and hand-printed image of the famous mathematical object, the Klein bottle, printed in a gradient of pale yellow-green to darker blue-green on paper 8” by 8” (20.3 cm by 20.3 cm). First described by mathematician Felix Klein in 1882, this object has a single surface, rather like a 3D version of a Möbius strip.
#linocut #sciart #printmaking #mathart #FelixKlein #histstm #mathematics #maths #reliefPrint #MastoArt
Research grants in #mininghistory! The American Mining History Association provides research grants each year of up to $1,000 to fund research on any topic related to mining’s past, including #histSTM, #envhist, #histtech, #laborhistory, #bizhist. Due date: May 1st! @micaamy @HistoryNystrom https://mininghistoryassociation.org/ResearchGrants.htm
Happy Easter to all who celebrate! 
No cute lambs or bunnies in my files, I'm afraid. I do, however, have a *lot* of queer chickens. This is Hector, a 'hen-cock' pictured in the Sporting Magazine in March 1833 and mentioned by Charles Darwin in his 1868 book The Variation of Animals and Plants under Domestication!
#Easter #HistSTM #HSTM #histsci #histbio #STS @histstm #histsex #history #histodons @histodons #sex #queer #queerhistory #lgbtq #animals #birds #science #naturalhistory #art
Happy birthday to Canadian 
geneticist Irene Ayako Uchida (1917-2013)! In my #linocut Uchida is shown surrounded by chromosones, with anomalies (shown with pink arrows) due to radiation exposure, based on one of her research papers. A strand of DNA is hidden in the image (as her watchband).
Uchida didn’t set out to be a scientist. She was studying English literature at UBC, before she was interned 1/n
#printmaking #sciart #genetics #cytology #DNA #histstm #WomenInSTEM #chromosomes
Der japanische Mediziner & Anthropologe Buntaro Adachi starb heute vor 80 Jahren. Er untersuchte als erster Zusammenhänge von Ohrenschmalzkonsistenz & Achselschweißgeruch – kein Aprilscherz! Was dies mit "Rassenphysiologie" zu tun hat, erklärt:
Julia Gebke, Achselschweiß und Ohrenschmalz: #Medizin und #Anthropologie zu Beginn des 20. Jahrhunderts, #WerkstattGeschichte 87/2023, https://werkstattgeschichte.de/abstracts/nr-87-julia-gebke/
Unser neues Heft #WerkstattGeschichte 91 "körpermaße" ist erschienen! 1/
Im Thementeil, hg. v. Cornelia Aust, geht es diesmal um das Vermessen & Vergleichen von Körpermerkmalen v.a. im 18./19. Jh. Wie trug dies dazu bei, geschlechtsspezifische & rassistische Differenz herzustellen und so Körpereigenschaften zu essenzialisieren?
Happy birthday to Wilhem Röntgen (1845-1923), the German physicist who discovered x-rays and earned the Nobel Prize for physics in 1901. I’ve depicted him in this thermochromic portrait at work, studying this mysterious, newly discovered, invisible form of light, based on a photograph of him in his lab, using a Crookes tube to produce x-rays. The form of the print mimics the nature of his discovery -
#MastoArt #linocut #sciart #Roentgen #physics #histstm #xrays #printmaking
Heute vor 5 Jahren begann in Deutschland der 1. #Corona-#Lockdown. Wie #Museen damit umgegangen sind, welche Sammlungs- und digitalen Aktivitäten sie z.B. entfaltet haben, hat seinerzeit unsere #Expokritik-Redaktion beobachtet:
Sebastian Kühn, Andreas Ludwig, Pavla Šimková & Lotte Thaa, Corona im #Museum, #WerkstattGeschichte 84/2021, https://werkstattgeschichte.de/alle_ausgaben/monogamie/
Lynn Margulis was born OTD in 1938. At 29, she published her theory that eukaryotes had evolved via endosymbiosis, after having it rejected by at least 15 other journals.
#HPBio #Complexity #HistSTM 
#EvoBio #WomeninSTEM
On the origin of mitosing cell...
It’s #BlackHistoryMonth so it’s a good time to celebrate the extraordinary mathematician and NASA scientist Katherine Johnson (née Coleman; August 26, 1918 – February 24, 2020). One of the first Black women employed as a NASA scientist (and its predecessor NACA), she was known for her mastery of complex manual calculations of orbital mechanics and played a pivotal role in the success of
#JOBKLAXON #histmed #histstm #envhist: the colleagues in the School of History at UCD are looking for candidates who can help develop a Humanities perspective in One Health, around the inter-dependence of animals, humans, microbes and environments in history.
www.jobs.ac.uk/job/DLN959/a...
Ad Astra Fellow - Assistant Pr...
My 2023 article 'Mendel's Closet: Genetics, Eugenics and the Exceptions of Sex in Edwardian Britain,' published in Notes and Records: The Royal Society Journal of the History of Science, has now been made free to access! 
https://royalsocietypublishing.org/doi/10.1098/rsnr.2023.0036
#HistSTM #HSTM #HistSci #HistBio #STS #SciComm @histstm #histsex #history #histodons @histodons #sex #queer #queerhistory #QueerInSTEM #lgbtq #biology #science #genetics #eugenics
Good little regional history and history of medicine video about TB sanitaria in LA:
https://www.pbs.org/video/tuberculosis-the-forgotten-plague-o6gnxl/
Happy birthday to geologist Charles Lyell (1797-1875) who in his famous ‘Principles of Geology,’ wrote that to avoid some sources of prejudice in understanding #geology would require an Amphibious Being, who could, say, compare processes happening today on land & those happening below water with what we see in the geological record. 1/n
New Tenure Track Position in our department:
Assistant Professor, Visual & Material Culture
Dept. of Social Science & Cultural Studies
Pratt Institute
We seek a dynamic scholar and educator whose research emphasizes visuality and/or materiality, and their social, political, economic, and cultural contexts... successful candidate may also contribute to our major and minors...
See link for more details:
#CulturalStudies #Sociology #VisualCulture #CriticalTheory #HistSTM
https://www.schooljobs.com/careers/pratt/jobs/4722147-0/assistant-professor-visual-material-culture-social-science-cultural-studies
Happy Halloween! 
Same-sex sexual behaviours in bats were first documented in 1895.
Here's a more recent study: http://www.italian-journal-of-mammalogy.it/Same-sex-sexual-behaviour-in-bats,77304,0,2.html.
#Halloween #HistSTM #HSTM #HistSci #HistBio #STS #SciComm @histstm #histsex #history #histodons @histodons #sex #queer #queerhistory #QueerInSTEM #lgbtq #science #biology #zoology #animals #bats
My 2023 Notes and Records article 'Mendel's Closet: Genetics, Eugenics and the Exceptions of Sex in Edwardian Britain' is free to read this #OpenAccess week!
Download away and share while you can . . .
https://royalsocietypublishing.org/doi/10.1098/rsnr.2023.0036
#HistSTM #HSTM #HistSci #HistBio #STS #SciComm @histstm #histsex #history #histodons @histodons #sex #queer #queerhistory #QueerInSTEM #lgbtq #biology #science #genetics #eugenics
Happy birthday to trailblazing #programmer & #computer scientist, Beatrice “Trixie” Worsley (1921-1972). My #linocut shows Worsley seated at the first computer in Canada, the FERUT (which she named) & a flow diagram of one of her programs.
Trixie Worsley earned one of the first doctorates in computer science anywhere, & was supervised by Douglas Hartree and Alan Turing at Cambridge. 1/n
