4 ms·
> "This cannot even be achieved using diamond" The whole concept totally absurd. Helium is ~15% the density of air, so even if you created a material 100x str
by jcampbell1 12y ago
> "This cannot even be achieved using diamond"
The whole concept totally absurd. Helium is ~15% the density of air, so even if you created a material 100x stronger than diamond, it would only outperform helium by a tiny amount.
- titanomachy 12y agoThe helium in a balloon/dirigible is under pressure, so its density would be somewhat greater than 15% that of air. But point taken.
- coryrc 12y agoNo. It's always the same pressure as air. That's the point. It'll always be ~15%.