Gjuvara Dzjachangir kizi Noerieva metallurgical engineer 1st #Azerbaijani woman professional metallurgist in industry. #WWII worked on develop't & application of welding armored steel grades for tanks & anti-magnetic steel for submarines d #OTD 30 Apr 1945 bit.ly/3fxTcqg

WES Centenary Women's Eng. Society She ended up in Chicago running a motorcycle import business and running a motorcycling school. I met some of her former pupils a few years ago, still active members of the local motorcycling clubs & 🔽being taught by her 50yrs ago.

Beatriz Ghirelli #Argentinian engineer. 1938 1st woman mechanical & electrical engineering graduate from National University of La Plata UNLP, 2nd woman in Argentina to earn qualification. Spearheaded C20th Pan American standardisation. b #OTD 30 Apr 1915 en.wikipedia.org/wiki/Beatriz_G…

Theresa Wallach #motorcyclist #engineer mechanic author. 1935 w' Florence Blenkiron, rode Panther motorcycle sidecar & trailer #London to #CapeTown crossing #Sahara desert without compass, 1st people to do so. Women's Eng. Society member. b & d #OTD 30 Apr 1909-99 en.wikipedia.org/wiki/Theresa_W…

Emily Davenport US inventor. Invented electric motor & electric locomotive c.1834 with husband. Cut silk wedding dress into strips to insulate iron wire windings. Credited w' idea of using mercury as conductor, enabling motor to function b #OTD 29 Apr 1810 en.wikipedia.org/wiki/Emily_Dav…

Shirley Becke 1935 trained as gas engineer @ Westminster Poly, 1939 1st woman to pass Higher Grade IGEM (Institution of Gas Engineers and Managers) exam. Gas engineer for 2 yrs. 1941 #WWII joined Metropolitan Police 1966-73 Commander of Women Police, 1st UK woman police commander. b. #OTD 29 Apr 1917 en.wikipedia.org/wiki/Shirley_B…

Jean Lennox Bird pioneering #pilot & 1st woman 2 get Royal Air Force wings 3000 hours in 90 types of aircraft when she qualified. BWPA give award in her name for noteworthy aviation performance by British woman pilot. d. #OTD 29 Apr 1957 in air crash en.wikipedia.org/wiki/Jean_Bird

Diana Barnato Walker UK #pilot . #WWII early Air Transport Auxiliary #ATA pilot flying 80 types of aircraft & delivering 260 Spitfires. 1963 1st British woman to break sound barrier flying at Mach 1.6, a world air speed record for women d. #OTD 28 Apr 2008 en.wikipedia.org/wiki/Diana_Bar…

Hertha Ayrton #engineer #physicist #mathematician #inventor 1 of 1st women in UK #electrical #engineer ing. #WWI invented fan to expel gas from trenches. After struggle to get it accepted 1000s issued to soldiers on front line b. #OTD 28 Apr 1854 en.wikipedia.org/wiki/Hertha_Ay…

Marie-Louise Paris #French #engineer graduated Sorbonne Université & Grenoble INP - UGA in 1920s. 1925 founded l'Institut Électro-Mécanique féminin, later l'École Polytechnique féminine to train #WomenInEngineering now EPF Engineering School in #Paris d. #OTD 28 Apr 1969 en.wikipedia.org/wiki/Marie-Lou…

Melba Roy US mathematician 1960s Assist Chief Research Progs Trajectory & Geodynamics NASA headed human computers, made orbital element tracking timetables. Head Maths 4 Echo Satellites 1&2, Program Production Section Chief NASAGoddard b #OTD 28 Apr 1929 en.wikipedia.org/wiki/Melba_Roy…

Helen Harrison-Bristol Canadian born female civil aviation instructor, grew up UK & Belgium, 1st woman to hold commercial pilot & instructor's rating in S Africa. 1st Canadian Air Transport Auxiliary #ATA ferry pilot during #WWII d. #OTD 27 April 1995 en.wikipedia.org/wiki/Helen_Har…

Caroline Maude Davis had 'for some time assisted with her father's foundry at #Wednesbury , has now joined Miss C. Griff [aka Cleone Benest] @ #Birmingham with a view to enlarging the scope of the Stainless and Non-Corrosive Metal Co.” b. #OTD 27th Apr 1890 magnificentwomen.co.uk/engineer-of-th…

Mary Ward 1827-69 #Irish #naturalist #astronomer #microscopist #author #artist Killed under wheels of experimental steam car built by Parsons cousins relatives of Women's Eng. Society founders. 1st person known to have been killed by motor vehicle b #OTD 27 April 1827 bit.ly/37vfnxd

Ángela Alessio Robles, Mexican civil engineer & town planner. 1940/50s Director General of Planning for Mexico City, then President of Planning & Director of Plan for Urban Development. 1980s oversaw devel't of huge #Monterrey Macroplaza d #OTD 27 Apr 2004 en.wikipedia.org/wiki/%C3%81nge…

Pelagia Majewska #Polish #aeroplane & #glider pilot-instructor, won many national & world #glider records. d. 1988 in aircraft accident, FAI created medal in her memory given annually to outstanding female glider #pilot . b. #OTD 26 April 1933 en.wikipedia.org/wiki/Pelagia_M…

Sébastienne Guyot #French #aeronautical #engineer , 1 of 1st women to graduate from CentraleSupélec in 1921; #pilot & plane owner, 800m #athlete in 1928 #Olympics . Awarded French Resistance #WWII medal for trying to rescue POW brother b. #OTD 26 Apr 1896 en.wikipedia.org/wiki/S%C3%A9ba…

Mary E. Dillon 1886–1983 US businesswoman & President of Brooklyn Borough Gas Company. 1st woman president of utility company in world. 1920s worked w Lillian Gilbreth on creation of Kitchen Practical which underpins kitchen planning today Women's Eng. Society member en.wikipedia.org/wiki/Mary_E._D…

Annie Easley US computer scientist, mathematician, rocket scientist. 1of 1st African-Americans to work NASA & predecessor NACA. Leading member of team which developed software for Centaur rocket stage. 2021 crater on moon named for her b. #OTD 23 Apr 1933 en.wikipedia.org/wiki/Annie_Eas…

Annie Easley US computer scientist, mathematician, rocket scientist. 1of 1st African-Americans to work NASA & predecessor NACA. Leading member of team which developed software for Centaur rocket stage. 2021 crater on moon named for her b. #OTD 23 Apr 1933 en.wikipedia.org/wiki/Annie_Eas…