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hdhondt

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12 Answers

Votes Activity Newest
50
Why tantalum for the Hayabusa bullets?
Jul 30 '19 at 5:02
12
How about space ziplines
May 13 '19 at 23:55
8
What is our ability to capture or reflect photons with a wavelength of $2.5×10^{-12}$ meters?
Nov 15 '16 at 2:04
3
What is the state of the art of exosolar planet imaging in 2019?
Jul 1 '19 at 23:43
3
What can cause grooves (stairs like) features on Mars's ground that is opposite to water flow direction?
Jan 16 '19 at 23:23
2
Feasibility of a small mass driver?
Sep 3 '19 at 3:44
2
How fast were the Lunar Command Module and Landing Module traveling around the Moon when they reconnected?
Jul 30 '19 at 1:01
1
Drone Racing on moon
Oct 25 '16 at 4:10
0
Is centre of mass a factor in space without gravity?
Dec 17 '17 at 22:33
-1
Using asteroids as propellent source
Jan 22 '18 at 0:57
-1
in microgravity do you need fuel to continue same velocity?
May 25 '17 at 0:08
-2
At a height of 100 km, what speed do you need to be going to escape Earth's gravity?
Nov 19 '19 at 0:56
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