Activity for B. Evett
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
How could you rapidly increase a black hole's mass? Say you were using a black hole as a propulsion drive á la Crane and Westmoreland http://arxiv.org/pdf/0908.1803.pdf- so your black hole has a radius of around .9 attometers - super tiny - around 600,000 tonnes. How much energy would be required to increase its size to say 100 earth masses? And how... (more) |
— | over 8 years ago |
| Question | — |
How massive would a black hole have to be to swallow a person As I understand it, very small black holes have very small and close event horizons, and wouldn't necessarily pose a gravitational risk (I know they give off huge amounts of energy, but let's leave that aside for the moment). Assuming that our people have advanced alien technology to keep them from ... (more) |
— | over 8 years ago |