Re:Starship / Super Heavy
by heavenlyblue on Sunday December 27, 2020 @07:01AM
(#25550454)
Wanted to argue with you but apparently concrete is only 2.5g/cm3 so not that much different from water.
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Re:Starship / Super Heavy
by stjohnswarts on Sunday December 27, 2020 @11:32PM
(#25556704)
There have been ships made of concrete which I always found interesting. Ferrocement (I believe) is a form of boatcraft that can be done in your backyard without any special tools.