Activity for fiend‭

Type	On...	Excerpt	Status	Date
Question	—	How does the day/night cycle work on a non-tidally locked moon? So to keep this simple, imagine a planet much like ours, orbiting a star. For the sake of this example, let's give the planet a 24 hour rotation, and a 364 day orbit around the star. Now, this planet has a moon, the moon is not-tidally locked to the planet, it also has a 24 hour rotation, but it orb... (more)	—	about 6 years ago
Question	—	How long after a global nuclear disaster would the world become habitable by humans again? So at some point in the future, humans have small colonies on the Moon, on Mars and many space stations in orbit of all the planets in the solar system. Everything is going great until one day something happens on Earth that sparks a global nuclear war. The USA, Russia, China, India, Pakistan, UK, F... (more)	—	about 8 years ago