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Top Questions
15
votes
What is the experimental evidence for the gravitational field having positive energy density?
general-relativity
experimental-physics
field-theory
gravitational-waves
asked Mar 4 '18 at 18:30
physics.stackexchange.com
10
votes
How to explain gravitational lensing to a layman?
general-relativity
gravity
gravitational-lensing
asked Jan 2 '19 at 2:54
physics.stackexchange.com
8
votes
Is there a “special” inertial frame determined by the value of E and B at a point in an EM field?
electromagnetism
special-relativity
inertial-frames
lorentz-symmetry
asked Mar 23 '19 at 3:42
physics.stackexchange.com
8
votes
Cosmological consequences of the mass-energy content of gravitational waves
general-relativity
gravitational-waves
dark-matter
dark-energy
asked Jun 18 '20 at 16:13
physics.stackexchange.com
8
votes
Is zitterbewegung physical or not?
quantum-mechanics
quantum-interpretations
asked May 18 '18 at 16:02
physics.stackexchange.com
7
votes
Would a charge imbalance act like dark energy?
electromagnetism
general-relativity
charge
cosmological-inflation
dark-energy
asked Dec 20 '18 at 18:08
physics.stackexchange.com
6
votes
Types of entanglement not due to conservation principles
quantum-mechanics
quantum-information
quantum-entanglement
asked Jul 13 '18 at 18:13
physics.stackexchange.com
5
votes
Can a linear system be chaotic?
quantum-mechanics
chaos-theory
linear-systems
asked Oct 27 '18 at 0:48
physics.stackexchange.com
Top Answers
67
Why don’t astronauts “push” spacecraft?
physics.stackexchange.com
63
If a photon truly goes through both slits (at the same time), then why can't we detect it at both slits (at the same time)?
physics.stackexchange.com
59
If electrons are identical and indistinguishable, how can we say current is the movement of electrons?
physics.stackexchange.com
58
How do I experimentally measure the surface area of a rock?
physics.stackexchange.com
52
Could there theoretically exist a material so light, that it can levitate in the air just due to the in height decreasing air pressure?
physics.stackexchange.com
50
Why does my tea periodically alternate its rotational speed after stirring? (Link to video below)
physics.stackexchange.com
48
How are overtones produced by plucking a string?
physics.stackexchange.com
42
Is force due to electric field instantaneous? If not then why?
physics.stackexchange.com
41
If a jet engine is bolted to the equator, does the Earth speed up?
physics.stackexchange.com
37
What happens when the drag force exceeds the weight of an object falling into earth?
physics.stackexchange.com
33
Does it make sense to say that something is almost infinite? If yes, then why?
physics.stackexchange.com
26
What is physically different about a moving vs still object in space?
physics.stackexchange.com
23
Is the photon pair generated from the electron-positron annihilation entangled?
physics.stackexchange.com
20
Is there an equivalent of computation of physical processes in nature?
physics.stackexchange.com
20
How exactly does artificial gravity work?
physics.stackexchange.com
17
What actually is white light?
physics.stackexchange.com
12
Could you use a laser beam as a modulated carrier wave for radio signal?
physics.stackexchange.com
12
Is there any research on the development of attacks against artificial intelligence systems?
ai.stackexchange.com
11
How can iron be forged by a hand-powered hammer?
physics.stackexchange.com
11
Superconductive magnet as a source of energy?
physics.stackexchange.com
11
How would a fast-moving atom interact with a body?
physics.stackexchange.com
10
Can we see emission lines in stars?
physics.stackexchange.com
10
Siphon water from washing machine into sink next to it
physics.stackexchange.com
10
Ground → ship Wi-Fi bandwidth in my fast moving spaceship
physics.stackexchange.com
9
Only sea water appears blue in color, why this is not happening in river water?
physics.stackexchange.com
9
What is happening when magnetic field lines snap or break?
physics.stackexchange.com
8
Horizontals in a grid do not cast shadow while verticals do. Why is this?
physics.stackexchange.com
8
Why don't marbles naturally arrange themselves like a crystal?
physics.stackexchange.com
8
Physics of a punch
physics.stackexchange.com
8
Can light beams (e.g. from a laser) visibly interfere if they cross in mid-air?
physics.stackexchange.com
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