Activity for Brianâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Using a brown dwarf for a gravity-assisted slingshot Assuming the feasibility of utilizing a brown dwarf for a gravity assisted slingshot, or Oberth Maneuver, what sort of hazards/difficulties could one expect during such a maneuver? EDIT: To make this more plausible, would it make a difference if the brown dwarf were part of a binary system, and wou... (more) |
— | about 8 years ago |
| Question | — |
Is it a forgone conclusion that any exo-bacteria discovered on an alien, albeit Earth-like planet will be deadly to human life? Would the discovery of alien bacteria found on even an Earth analog planet preclude the possibility of colonization due to the potentially deadly nature of bacterial/viral infections? Put differently, would the fact of our evolution in Earth's biosphere alongside its (albeit rapidly mutating) microsc... (more) |
— | over 8 years ago |
| Question | — |
Gravitational slingshots: could they be used to decelerate a spacecraft traveling at a small fraction of light speed? I have heard of gravitational slingshots being used to theoretically accelerate a spacecraft using a planet's gravity and momentum in orbit. But how about decelerating a ship? If it is at all possible, could it be done without g-forces killing the entire crew and destroying the ship if said spacecraf... (more) |
— | over 8 years ago |