Activity for Loren Pechtel‭

Type	On...	Excerpt	Status	Date
Answer	—	A: What happens if a small moon is held within a planet's Roche Limit? Big misunderstanding here: Lets look at what "stop" really means. You have to define a context for stop. 1) Relative to the wizard, 2) relative to the planet, 3) relative to the star, 4) relative to the galaxy. 3) and 4) are clearly useless for you--both result in it flying off at great speed. ... (more)	—	almost 6 years ago
Question	—	Climatology of a supermassive Dyson sphere? Note: There is a related question about illuminating such a sphere that inspired this question. I'm going much farther, though, this is not a dupe. The Dyson sphere will be the central mass of the system, stars will orbit it. (Ignore the unobtainium needed to build the sphere.) Now, trying to ge... (more)	—	almost 8 years ago
Question	—	Geology of a supermassive Dyson sphere There was a question on here a while ago about lighting a massive Dyson sphere, that has gotten me to thinking. Obviously, such an item needs some unobtainium to build, but ignore that. I'm figuring an inner shell of something like 1 AU across, that is totally empty, on top of this is a layer of ro... (more)	—	almost 8 years ago
Answer	—	A: How can I destroy a gas giant planet? While ckersch's answer is correct on the energy needed there's a deeper issue involved here that I think you are missing: The main part of the energy needed to destroy a planet is the energy needed to push the components to escape velocity. For the back of the envelope calculations people are doing... (more)	—	about 9 years ago
Answer	—	A: How do I figure out how many people my domed city on a hostile planet can support? While I don't have the answers I can give you a starting point: Forget the volume, ignore what the people need to live in. It doesn't matter. The limiting factor will be food production. If the plants are growing directly in the city the needs here are going to be substantial--remember, Mars only... (more)	—	over 9 years ago