Activity for Seth‭

Type	On...	Excerpt	Status	Date
Question	—	Storms on a low-gravity planet For this question, assume that the planet is Earth-like in almost every way, and is in a system like ours...the distance from the sun, orbital period, rotation, axial tilt, etc is all pretty much the same as Earth now - except this planet's radius and mass are reduced such that the gravity on the sur... (more)	—	about 9 years ago
Question	—	What changes would be needed to double a human's vertical jump? Let's say there is a species of intelligent beings who are indistinguishable from humans in every way - except on average they can jump twice as high as the average human, based on Earth gravity. What physiological differences would be necessary to allow these beings to jump so high, and yet still b... (more)	—	about 9 years ago
Question	—	Which crops to save to best ensure survival? You're in a group of colonists, headed to your new home on Tau Ceti e. Due to some crazy accidents aboard the ship, the diverse flora that was brought aboard (for food during the journey and for agriculture at the colony) is at danger of being lost forever. You have the opportunity to save three spe... (more)	—	over 9 years ago
Question	—	Adjusting to changes in gravity and pressure You go to sleep one day, and wake up on a different planet. Let's say the atmosphere of this planet has about the same composition as on Earth. Actually, this planet has pretty much all of the same physical properties as Earth. However, this planet has $4.5\ M\oplus$ (Earth mass), and $1.8\ R\oplus$ ... (more)	—	over 9 years ago
Question	—	Resources to justify long-distance space mining missions Earth is setting up mining colonies on Tau Ceti e. But how can they justify the enormous cost of sending people there? ...Because during the initial exploratory missions, it was discovered that in addition to being human-habitable, the geology of TCe is just filthy with some natural resource(s), whic... (more)	—	over 9 years ago
Question	—	Suspended animation vs. regular animation aboard a spaceship Scenario I'm trying to design a colony spaceship. My main character, a soldier, awakes prematurely from suspended animation (SA) to find that the colony ship she is on, headed for Tau Ceti e, is in a mutiny. The journey was supposed to last about 14 years, but she's awoken halfway through the journ... (more)	—	over 9 years ago
Question	—	Effects of suspended animation Major Camila de Ocampo, "La Comandante", wakes with a start. As she's been trained to do when coming out of stasis, she flexes each muscle, beginning with her toes until she finally finishes by raising and lowering her eyebrows. She continues the stasis emergence process, as her muscles seem to be wo... (more)	—	over 9 years ago
Question	—	Effects of a non-rotating Earth Earth has stopped rotating. Maybe Superman started flying around the Earth backwards to turn back time, but hit a wall of kryptonite just when the Earth stopped rotating. Or Stupendous Man hit the earth so hard that it went from Sunday to Saturday... but also has stopped the earth's rotation. Let's a... (more)	—	almost 10 years ago
Question	—	A planet made of trash? Consider a scenario where there is an over-populated solar system (not necessarily our solar system). Several other rocky planets and moons in this solar system are inhabited by the same humanoid race, and every planet's population is reaching its Malthusian limit. It's not too hard getting things in... (more)	—	almost 10 years ago