Activity for possiblySerious‭

Type	On...	Excerpt	Status	Date
Question	—	Without modern electronics, how could you determine your longitude, latitude, and altitude while lost deep underground? Brief setting notes: it's a "basically earth" type situation, a spinning ball of rock in space with the same size and gravity and atmosphere and magnetic fields and everything else. The main difference is that there is also a HUGE dungeon-cave system across the continent. No one knows how deep it g... (more)	—	about 4 years ago
Question	—	Are there currents in space? Space flotsam? You know how there are some beaches in the world where tons of sea glass or other random sea trash washes up, just because the currents and the shape of the land naturally collects it all there? I was wondering if something similar could happen out in space. Certain planets or solar systems where int... (more)	—	over 5 years ago
Question	—	Junkyard planet trash distribution? So, I've got a planet that's basically a junkyard. It's just one big junkyard. People from various space-faring societies dump all the crap there that they don't want to deal with. Derelict spaceships, obsolete tech, that sort of thing. And because the people doing this are lazy, what they basically ... (more)	—	about 6 years ago
Question	—	How to send a message to the past using a precognizant rabbit? Let's say we have a wild rabbit that can see a few minutes into the future. Being a non-sentient animal, it barely registers these abilities, and largely uses it to find food, avoid predators, save time seeking mates, and other such things rabbits do. After several months, some scientists finally man... (more)	—	about 7 years ago
Question	—	Making the entire inner solar system have a breathable atmosphere? Let's say it's sometime in the future, and humanity has expanded outwards into the solar system, and we've genetically engineered some really big plants that can for some unimportant reason, survive in the vacuum of space. These plants float around and preform photosynthesis, much like any other plan... (more)	—	over 7 years ago
Question	—	What would happen at the core of a water world? If there existed a planet that was made completely of liquid water, no solid matter at all, what would the core of such a planet be like? Let's assume that this planet has conditions similar to earth, so that it could support liquid water at its surface, with ice caps at the poles. But there's no mat... (more)	—	over 7 years ago
Question	—	How fast would a planet have to be spinning for the centrifugal/centripetal force to cancel out the force of gravity near the equator? So, I know that on the planet earth, the force of gravity is actually slightly less nearer the equator, due to the Centrifugal Centripetal Spinny Force. Not by a whole lot, but by some small amount. This Centri Spinny Force also makes the entire planet deform slightly outwards near the equator, mak... (more)	—	about 8 years ago
Question	—	Properties of air cloud in space So I'm trying to make an orbital city, kind of like the ISS, but on a much bigger scale. And against all logic and reason, I want there to be balconies. Like, where someone can just step outside, wearing normal street clothes, with nothing in between them and space, and not die. I've gone down the li... (more)	—	over 8 years ago
Question	—	High-Altitude Life? So here's the rough idea. I'm trying to figure out what kind of life could exist that spends basically its entire life in the air, for an alien world I'm working on. No sentient life, just wilderness. In my mind, it's not so much something that actively flies (like birds or planes), and lands in-betw... (more)	—	over 8 years ago