What exactly is NASA's proposed mechanism for "propellantless" "EM Drive" propulsion?
62465
What are the proposed theoretical explanations for the EmDrive?
121652
How can I convey a sensation of speed in space?
143704
How does Earth's interior dynamo work?
112528
Will a machine or a technique ever be possible that allows artificial gravity in interplanetary space?
67028
Identification: a story about an entire spaceship converted to anti-matter
82272
Why doesn't this magnetic perpetual motion machine work?
146500
How did the Millennium Falcon get from Hoth to Bespin without hyperdrive?
4844
Why does a free-falling body experience no force despite accelerating?
53441
Simple explanation to the induction from the slowly changing $\vec B$ of a solenoid in the region of $0$ magnetic field
31246
How much thrust would be needed to turn a hobbyist weather balloon into a deep space probe?
8594
How to drive a Peltier element?
68392
How to start an artificial gravity?
11280
Where does the extra kinetic energy of the rocket come from?
107249
The nice Veritasium video about a wind-powered vehicle that can go downwind faster than the wind itself
117551
What limits the maximum sustainable surface charge density of a sphere in space?
12345
Formula for controlling the movement of a tank-like vehicle?
147803
Why does vacuum have a nonzero characteristic impedance towards electromagnetic radiation?