DJ Cravens <djcrav...@hotmail.com> wrote:
> Perhaps someone here would like to figure how long I would need to run a > *sealed > *brass sphere to rule out chemistry from 4 g of active material or even > 200 grams total material. > Simplify! Just use the energy density of gasoline, 42 MJ/kg. No common fuel is better. Only a few exotic fuels are better. If you want to be absolutely sure, double it to 84 MJ/kg. That is very conservative because it does not include the weight of the oxygen in the burned fuel. - Jed
