Activity for Alright itsCRO
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
How many litres of gaseous helium would it take to lift 80Â kg on Earth? I have dragons in mind for my world, but I'm trying to find logic in how would a medium-sized anything fly off and still be a danger to humans. So far, I have a lizard-like cheetah with wings, hollow bones and very strong legs but I still doubt it would be able to fly if it had over 60Â kg. So anyw... (more) |
— | almost 6 years ago |