3 ms·
And if the foam cells have a vacuum in them (in? lack of?) how does it not implode when on earth.
by dghughes 8y ago
And if the foam cells have a vacuum in them (in? lack of?) how does it not implode when on earth.
- noir_lord 8y agoThe difference between Vacumn and 1atm is 14psi, bike tires pumped to between 50-120psi (on my road bike for example), 14 psi isn't that large a pressure for a reasonably strong/stiff material.
- dghughes 8y agoI know what you mean but in a way I think there is a difference since the material has to withstand inward pressure; compressive forces. A tire/tyre rubber has tensile strength, most (all?) pressure vessels on earth are tensile. It seems odd the difference between compression and tension when it comes to certain forces. Anyway, I just though it would matter.