Activity for Adamâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Arctic frog cryogenics Rana sylvatica, the only amphibian found north of the arctic circle, has a very unique survival strategy: it pumps its body full of glucose and hormones just before freezing so that ice crystals don't cause irreversible damage to the creature's body. Then, when it comes time to thaw, the frog thaws s... (more) |
— | about 7 years ago |
| Question | — |
Two or more advanced civilizations aren't even aware of each other Humans have achieved FTL and have colonized several planets in our greater stellar neighborhood. While we have discovered several planets that harbor life as we know it, we have not yet discovered other intelligent life. However, this isn't because we haven't yet encountered it; within the same stell... (more) |
— | about 7 years ago |
| Question | — |
Virtual particles as propellant I've read that even in a "perfect" vacuum, matter exists in the form of virtual particles that spontaneously pop into existence only to be immediately annihilated. This suggests to me that it might be possible to use these particles during their short existence as a propellant by accelerating them be... (more) |
— | about 7 years ago |