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Showing results for tags 'astrophysics'.
Precisely what would happen if, suddenly, 87.5% of a given gaseous planet's mass was somehow transformed into pure oxygen, and immediately after, five small asteroids of pure caesium, each possessing a surface area exactly equal to 5% of the gaseous planet's topographic surface area, collided with the newly oxygenated gaseous planet at the same time at equidistant coordinates? Precisely what would be the effects on the astrochemistry and meteorology of the planet, and how would it effect other nearby astral bodies? It's admittedly a vague question with many variables, so I'll provide some spec
If the entire universe, every single planck, even what is now empty space, was somehow converted into a single type of fermion, what would happen? What would happen differently if it were a different kind of fermion? Additionally, what would happen if it were a combination of different fermions, and how would the results differ between combinations? Would it be possible for life to arise in this new universe? If so, how would the aforementioned variations effect this?
OK, so I am a pretty-advanced society and I want to build a ring around a Jupiter-like planet that could serve as a living space - lots of living space. Lets say I want it to be about 5K miles wide and have roughly 1G gravity. Questions*: 1. How far above the "surface" of the gas giant do I need to be to have an Earth-like gravity? 2. What would be the circumference of the ring? 3. How much surface area would it have? (Rated in living space equal to the Earth's, i.e. it has the surface area of 350 Earths.) 4. What would be the best way to maintain atmosphere? Just high side-walls + gravity?