| ▲ | mrweasel 2 hours ago | |
That would be fun on a space craft. Steam power spacecraft, powered by burning mushrooms. | ||
| ▲ | friendzis 25 minutes ago | parent | next [-] | |
Humans become interstellar species. Energy source is still heated water. | ||
| ▲ | ethmarks 2 hours ago | parent | prev [-] | |
And the mushrooms would be powered by cosmic radiation... | ||