#RotarySteamEngine
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jckaelin.bsky.social
#OTD #TDIH #July5, 1892: #AndrewJacksonBeard #patents his #RotarySteamEngine.
#AndrewBeard #Inventors #BlackInventors #AfricanAmericans #BlackAmericans #BlackPeople #Blacks #RotaryEngines #SteamRotaryEngines #BeardCouplers #AutomaticCouplers #BlackSky
en.wikipedia.org/wiki/Andrew_...
July 5, 2026 at 6:18 PM
jckaelin.bsky.social
#OTD #TDIH #July5, 1892: #AndrewJacksonBeard #patents his #RotarySteamEngine.
#AndrewBeard #Inventors #BlackInventors #AfricanAmericans #BlackAmericans #BlackPeople #Blacks #RotaryEngines #SteamRotaryEngines #BeardCouplers #AutomaticCouplers #BlackSky
en.wikipedia.org/wiki/Andrew_...
July 5, 2025 at 12:36 AM