Activity for John O
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Need help figuring acceleration out of a gravity well I'm writing a spaceship that just performed an Oberth maneuver around the sun, 10 million km out, and is accelerating toward a gravity sling with Jupiter. It had a high--not certain how high yet--initial velocity, and 1.5 G of thrust at perihelion, but then lost its engines for about three days. It h... (more) |
— | almost 8 years ago |