3 ms·
> That's also why it's so light, since in H2O, 90% of the weight is the oxygen. which also makes it unsuitable for moon cars.
by merb 5y ago
> That's also why it's so light, since in H2O, 90% of the weight is the oxygen.
which also makes it unsuitable for moon cars.
- Gravityloss 5y agoOr alternately, you can use a lithium battery with air. But it gains more weight as it is used up. Anyway, energy density is comparable to gasoline. https://en.wikipedia.org/wiki/Lithium%E2%80%93air_battery https://en.wikipedia.org/wiki/Lithium%E2%80%93air_battery