HopDavid
  • Member for 7 years, 10 months
  • Last seen more than a week ago
1 answers
24 votes
1k views
4 bookmarks
What's the path of something dropped from a space elevator
5 answers
18 votes
2k views
5 bookmarks
What's salvageable from a dead satellite?
1 answers
17 votes
1k views
2 bookmarks
Is a railgun up Olympus Mons possible?
1 answers
14 votes
946 views
2 bookmarks
How many dead sats near GEO?
1 answers
10 votes
344 views
1 bookmarks
How much acceleration does it take for water to flow downhill?
2 answers
10 votes
4k views
3 bookmarks
General guidelines for modeling a low thrust ion spiral?
2 answers
10 votes
261 views
2 bookmarks
Is "medihelion" a word?
1 answers
10 votes
621 views
Numbers for Falcon 9 booster MECO scenarios?
4 answers
9 votes
2k views
What typically ends a satellite's life?
1 answers
9 votes
261 views
1 bookmarks
What's the floor for stable retrograde lunar orbits?
2 answers
8 votes
496 views
3 bookmarks
~15.5817 -- Is there a name for this number?
1 answers
7 votes
489 views
1 bookmarks
What will Max Q for descent be?
1 answers
4 votes
417 views
Latitude and longitude lines for Pluto and Charon
1 answers
2 votes
112 views
How do you find ZRVTOs between tethers from coplanar, tidelocked bodies?