4 ms·
You mean, extremely cold. Not particularly dense, methane is about half of water density, oxygen is about 10% more.
by avmich 6y ago
You mean, extremely cold. Not particularly dense, methane is about half of water density, oxygen is about 10% more.
- wolfram74 6y agoGiven most buildings are upwards of 90% air by volume, that's still quite dense.
- heavenlyblue 6y agoWanted to argue with you but apparently concrete is only 2.5g/cm3 so not that much different from water.
- deleted 6y ago[deleted]
- stjohnswarts 6y agoThere 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.
- garmaine 6y agoWhen supercooled they’re a bit more dense than that. But as the sibling comment said, most 30 story buildings aren’t filled with water.
- Sheldon777 6y agothe supercooling system and its nitrate gasses will freeze the core of the space ship
- MertsA 6y agoPresumably they mean compared to hydrolox like Delta IV or the Space Shuttle.