One section of the Space Shuttle external fuel tank wall. machined from a solid plate, 32 combined to make the vertical wall of the hydrogen tank. It had a service life of about 12 minutes.5yr ⋅ Acoldsteelrail ⋅ r/Machinists
Vaccine doses administered by county of residence is highly dependent on median income.3yr ⋅ Acoldsteelrail ⋅ r/CoronavirusCA
