Activity for mjr
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Is there a theoretical maximum size for rocky planets? As title suggests, what is the size limit by volume for a rocky planet, if any? Some ideas are discussed here, but I'm wondering if there is more concrete, expert evidence to point either way. If possible, it should be at least large enough to host one or more entities that eat Earth-sized planets (a... (more) |
— | almost 10 years ago |
| Question | — |
How would we build Earth Mark II? It appears that multiple planets existing in the same orbit is theoretically possible. In that case, how would we go about building a second Earth-sized planet and inserting it into some position in Earth's orbital path? I was thinking planet-construction would be more likely succeed in that region s... (more) |
— | almost 10 years ago |
| Question | — |
Maglev transportation without tracks A frog has already been levitated without any magnetic object attached to it. I'm wondering if it's possible to reverse this for transportation purposes, by having a vehicle levitate itself using magnetism, without the usual magnetic track. I.e., is it theoretically reasonable to make some sort of ve... (more) |
— | almost 10 years ago |
| Question | — |
Buying energy from the sun? How could an organization force solar energy to be bought from them? Something like: A large structure (in space presumably) fully/partly blocks sunlight reaching Earth, so anyone here wishing to unblock a portion must pay the price. Of course this introduces many more problems of heating, lighting,... (more) |
— | almost 10 years ago |