5 ms·
Alas I am not well enough educated on the subject to have ever come across that particular term. (I do wish KSP was available on *nix) And I do see your point
by tejtm 6y ago
Alas I am not well enough educated on the subject to have ever come across that particular term.
(I do wish KSP was available on *nix)
And I do see your point as it pertains to solid matter.
How ever as a layperson I am at least vaguely aware that there are hyper velocity stars, some observed
w/delta-v close to 10% of C if memory serves ...
Which would indicate to me that having a gravity well we can delve arbitrarly deep into has profound implications compared to gravity wells where it you go too deep you run into clouds or dirt.
For example the vessel could be paired, co-orbiting with a sacrificial mass that is dumped into the hole while the vessel leaves at at factor greater than a few hundred.
- T-A 6y agoThe fastest hypervelocity star I can find with a quick bit of googling is S5-HVS1, at 1700 km/s [1], slower than the hypothetical black-hole-accelerated ship example. You can't delve arbitrarily deep into a black hole's gravity well if you want to get something back; you need to stop at the horizon, where the escape velocity equals light speed. Dumping sacrificial mass into the hole is built into the Oberth effect scenario: the ship's extra speed (relative to the hole) is matched by a lower speed for the ejected reaction mass, which therefore falls toward the hole. I suppose you could imagine something like a circular accelerator built around the hole and powered by dropping masses into it. [1] https://newatlas.com/space/fastest-star-hypervelocity-ejected-milky-way/ https://newatlas.com/space/fastest-star-hypervelocity-ejecte...