Hilda Counts US electrical engineer. 1st woman to earn Electrical Engineering degree @ Uni of Colorado. 1919 cofounder of American Society of Women Engineers & Architects. Worked @ Westinghouse Electric Corp & Rural Electrification Administration in Washington DC. d. 17 May 1989 bit.ly/3FEtVqZ

Erna Hamburger #Swiss electrical #engineer working in radio-wave research. In 1957 she became professor of #electrometry at University of #Lausanne @unil 1st female #STEM professor in #Switzerland. Annual Prize is awarded in her name. d. #OTD 15 May 1988 en.wikipedia.org/wiki/Erna_Ha...

Marilyn Jorgenson Reece #American #civilengineer & 1st woman civil #engineer licensed by state of #California. 1964 design of #LosAngeles I-10 & I-405 Freeway interchange revolutionary in traffic #engineering. 2008 renamed in her honour d. #OTD 15 May 2004 en.wikipedia.org/wiki/Marilyn...

Jessy Blackburn aviation pioneer 1 of 1st women to fly in British monoplane. Founded Blackburn Aircraft w' husband using her inheritance. Key in sales & marketing, hosted RAF officials politicians media & aviators in Leeds home. Flew in 1922/28 King's Cup Air Races d. #OTD 14 May 1995 bit.ly/3fEqXYq

Alice Everett astronomer engineer, degree @girtoncollege.bsky.social worked in optics & early television. 1890 1st woman paid for astronomical work at Royal Observatory. 1903 1st woman to have paper published by Physical Society of London. b. #OTD 15 May 1865 en.wikipedia.org/wiki/Alice_E...

This is what comes of using munitions that cost 10-100x the cost of the thing they are attacking. It's called asymmetric warfare and the little guys can win it.

Marguerite Perey Frech physicist. Marie Curie's personal tech assistant @ Radium Institute. 1939 discovered element francium. 1962 1st woman elected to French Académie des Sciences. d. #OTD 13 May 1975 1/72 #WomeInSTEM whose names proposed to be added to Eiffel Tower en.wikipedia.org/wiki/Marguer...

Carmen Damedoz dancer, artist's model & aviator, last woman to pass French flying test before #WWI (licence 1449). Dec 1913 her engine failed but still won🏅for women's altitude prize. Demanded right to join war effort as aviator, military refused. d. #OTD 14 May 1964 en.wikipedia.org/wiki/Carmen_...

@grace-knight.co.uk Scottish publishers: www.uncertainstories.com

What astonishing colours. Perfect for a wee #knitting project to use up scrap-ends of yarns. There is even a #Ravelry pattern for one! www.ravelry.com/patterns/lib...

This is more than a bit serious. This could be catastrophic for heritage stained glass & also for lead roofing work. It will effectively exclude women from these crafts. If this might matter to you, you can write to your MP here: www.derekhuntartist.com/letter-to-yo... youtu.be/J48W45rCV6s?...

9th International Congress on Construction History, at the Politecnico di Torino in 2027, June 28th – July 2nd. Call for papers has just opened, deadline 28th June 2026. constructionhistorygroup.polito.it/icch/

Pelageya Polubarinova-Kochina Soviet applied mathematician, worked on fluid mechanics, hydrodynamics, Fuchsian equations & history of maths. Member of Academy of Sciences of Soviet Union d. @ 100 just after publication of last scientific article. b. #OTD 13 May 1899 en.wikipedia.org/wiki/Pelagey...

Dear UK politicians, take note. A) positive politics is possible B) people live to hear about success C) success requires playing nicely with others Get the finger out and start doing your jobs.

Gaetanina Calvi 1887–1964 #Italian civil engineer. 1913 1st woman to graduate from Polytechnic University of #Milan, 2nd in Italy after Emma Strada. Worked for engineers Gardella & Martini in Milan. 1925 designed new wing for Institute for Blind in Milan. en.wikipedia.org/wiki/Gaetani...

Clotilde Catalán de Ocón #Spanish #entomologist #poet known for study of lepidoptera 🦋 in Sierra de Albarracín. 1st Spanish woman to practice #entomology Wrote poems as La Hija del Cabriel. Sister Blanca Catalán de Ocón 1st Spanish female botanist d. #OTD 12 May 1946 en.wikipedia.org/wiki/Clotild...

Happy birthday to Margaret Calvert, designer for much of the UK road signage system. 90 today! en.wikipedia.org/wiki/Margare...

Advanced construction techniques and domestic layouts discovered in Roman-Byzantine villages of Syria phys.org/news/2026-05...

@dreadships.bsky.social A query for you methinks!

GCaptain laying out for us the vast cost of Orange Horror's War-of-Choice against Iran. This sort of conflict is described as asymmetrical, cos the cost imbalance is HUGE between high-end missiles/rounds used by USN & Iran's wee drones & USVs. Could Iran bankrupt the US? gcaptain.com/u-s-navy-fac...

You can read more about her at www.infinite-women.com/women/lilian..., courtesy of @dib.ie

#OnThisDay, 11 May 1978, Margaret Brewer becomes the first woman to reach the rank of General in the US Marines. #WomenInHistory #OTD #History #WomensHistory #AmericanHistory 🗃️

Born today: American aviator, journalist, and film screenwriter Harriet Quimby was born May 11, 1875. She became the first woman in the US to receive a pilot's license in 1911, and the first woman to fly across the English Channel the following year.

@grace-knight.co.uk #EveryDayASchoolDay. I didnt know this!

Mildred Doran Canadian aviation enthusiast. A teacher, got interested in flying at college. Only woman in tragic 1927 Dole 🍍Air Race, the 1st attempt to fly California to Hawai'i. Her plane, named "Miss Doran" & another "Golden Eagle" disappeared. b. #OTD 10 May 1927 en.wikipedia.org/wiki/Mildred...

Kay Petre early UK motor racing star but racing career ended after bad crash @ Brooklands racetrack in 1937. Took up journalism, was food writer in #WWII & later a motoring journalist. Then designed fabric patterns for interior of the Mini. b. #OTD 10 May 1903 en.wikipedia.org/wiki/Kay_Petre

Miriam Sebaggala née Muwanga #Uganda's 1st woman engineer. Trained @ Associated Electronics Industries (later Metropolitan Vickers) Studied @ John Dalton College of Technology #Manchester @manmetuni.bsky.social @wes1919.bsky.social member 1960/70s d. #OTD 10 May 1975 en.wikipedia.org/wiki/Miriam_...

Lilian Bland Anglo-Irish #journalist press #photographer & pioneer #aviator. 1910/11 1 of 1st women in British Isles & possibly world to design, build & fly aircraft – Bland Mayfly, named ironically for doubts about its flight capability. d. #OTD 11 May 1971 en.wikipedia.org/wiki/Lilian_...

Is it possible, just possible, that these two stories are related?

Cecilia Payne-Gaposchkin UK/US astronomer astrophysicist. Work on cosmic makeup of universe & nature of stars = foundational to modern astrophysics. 1925 showed stars made of hydrogen & helium initially rejected by astrophysicists but proved right b. #OTD 10 May 1900 en.wikipedia.org/wiki/Cecilia...

Does anyone know if Darwin's Tree of Life, the Open University interactive application that is linked to from this BBC page is still available anywhere? Unfortunately it seems to be a casualty of something that's oh so common online, the easy lost of web content. www.bbc.co.uk/programmes/b...

Beryl May Dent top class mathematical #physicist, technical #librarian, programmer of early analog & digital #computers to solve electrical #engineering problems. Graduated @ Bristol Uni later worked @ Metropolitan Vickers @wes1919.bsky.social member b. #OTD 10 May 1900 bit.ly/331FaZ9

Final call for this weekend's instalment of Glasgow nerdery, departing shortly for the Clyde via Fir Pit, Gallowhouse, Port Eglinton and West Street. Please take 30 cwt of coal with you when leaving the train.

Mary, Lady Heath Irish aviator & 1st woman to hold commercial flying licence in Britain. Set records for altitude in a small plane & later a Shorts seaplane. 1st woman to parachute from aeroplane, landing in middle of a football match. d. #OTD 9 May 1939 en.wikipedia.org/wiki/Mary,_L...

Lady Heath was born Sophie Mary Peirce in Knockaderry, Co Limerick. Among her many achievements, she trained the first generation of Aer Lingus pilots. 📷 An Irish Airwoman by John Lavery

Greta Woxén was #Sweden's 1st female civil engineer graduating from @kthuniversity.bsky.social in 1928. She worked for Elektricitetverksföreningen electricity company, then becoming a teacher after a career break to raise her family. d. #OTD 9 May 1993 en.wikipedia.org/wiki/Greta_W... #WomenInSTEM

Who wants a longish read about the colliery waggonways of Southside, illustrated with far too many maps? Nobody? Bah. You shall have one anyway. new-cleckit.dominie.scot/the-govan-wa...

The Hungarian parliament is on a wonderful musical roll. We also saw them all sing Ode to Joy. I would love to see our Houses of Parliament acknowledge unity and love like that.

My book launch today went really well. A great audience. Amazingly, a couple had flown over from Dublin specially to attend. Also 3 local members of the Women Drivers Social Club, which was brilliant. Sold a few books. Purchase options here: cramptonmoorhousepublishing.blogspot.com/2026/05/new-...

Fatma Hikmet İşmen Greek-born #Turkish agricultural engineer. 1937 graduated agricultural engineering @ Ankara Uni, PhD in Canada. Specialised in plant pathology. Worked @ Min of Ag. Politician, socialist Workers Party of Turkey senator 1966-75. d. #OTD 9 May 2006 en.wikipedia.org/wiki/Fatma_H...

Miriam Violet Griffith, UK electrical engineer, technical author, early expert on ground source heat pumps. Educated @ Cheltenham Ladies College. Physics degree Bedford College Elected Fellow @ Institute of Physics @physicsnews.bsky.social b4 1949. d. #OTD 9 May 1989 en.wikipedia.org/wiki/Miriam_...

A beautiful birthday tribute to Sir David Attenborough from poet Brian Bilston.