Physics

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Answer score of 25 or more. This badge can be awarded multiple times.
Awarded 4318 times.
What did general relativity clarify about Mercury?
Awarded Sep 25 at 9:09
Why is the partition function divided by $(h^{3N} N!)$?
Awarded Sep 25 at 4:22
Why don't electromagnetic waves interact with each other?
Awarded Sep 16 at 20:18
Three polarizers, 45° apart
Awarded Sep 16 at 5:04
Planck's Law in terms of wavelength
Awarded Sep 13 at 23:27
Mixing of quarks, neutrinos... and leptons?
Awarded Sep 10 at 12:21
How do you know mercury changes monotonically with temperature if mercury itself is used to make the thermometer?
Awarded Sep 9 at 18:43
How do you know mercury changes monotonically with temperature if mercury itself is used to make the thermometer?
Awarded Sep 8 at 11:31
Quantum dimension in topological entanglement entropy
Awarded Sep 7 at 6:35
Commutator of Dirac gamma matrices
Awarded Sep 6 at 17:08
What is meant by the term "completeness relation"
Awarded Sep 3 at 15:34
Why ket and bra notation?
Awarded Sep 3 at 15:11
What does the sky look like from the moon?
Awarded Sep 3 at 4:16
Are there still 'everyday' phenomena unexplained by Physics?
Awarded Sep 1 at 15:18
Why does water pouring from a glass sometimes travel down the side of the glass?
Awarded Aug 30 at 16:10
Why are stars made from hydrogen and helium and not other elements?
Awarded Aug 29 at 10:52
Why is Spacetime described as flat even though we live in 3 dimensions of space?
Awarded Aug 25 at 8:51
How many minutes in a year?
Awarded Aug 24 at 21:06
Why is it easier to raise AC current to high voltage than DC?
Awarded Aug 21 at 11:56
Can Loop Quantum Gravity connect in any way with string theory?
Awarded Aug 19 at 22:40
Why are sound waves longitudinal even though they are mechanical energy?
Awarded Aug 18 at 10:47
What is the most appropriate mathematical theory for electrical circuits?
Awarded Aug 15 at 8:47
What makes a superconductor topological?
Awarded Aug 12 at 4:25
Does QED really break down at the Landau pole?
Awarded Aug 11 at 1:07
If another planet was opposite Earth, would we be able to observe it?
Awarded Aug 9 at 10:34
How does a violin produce notes, microscopically?
Awarded Aug 8 at 22:40
How does a violin produce notes, microscopically?
Awarded Aug 7 at 9:56
What exactly is the fireball caused by a nuclear bomb?
Awarded Aug 7 at 4:05
Why symmetry transformations have to commute with Hamiltonian?
Awarded Aug 5 at 14:13
A Rainbow Paradox
Awarded Aug 5 at 11:30
A pedestrian explanation of conformal blocks
Awarded Aug 3 at 20:58
Is current in superconductors infinite? If they have 0 resistance then I (V/R) should be infinite?
Awarded Aug 3 at 7:26
Estimate the Sun's temperature, based on the duration of sunrise
Awarded Aug 3 at 2:47
Why can't we run the laws of physics backwards and forwards in time infinitely?
Awarded Jul 31 at 17:30
Why is an arrow pointing through a glass of water only flipped vertically but not horizontally?
Awarded Jul 30 at 18:35
What is the definition of a "UV-complete" theory?
Awarded Jul 29 at 6:36
To what degree of precision are atoms electrically neutral?
Awarded Jul 28 at 13:56
Why does CNN's ‘gravity hole’ in the Indian Ocean dip the sea level instead of raising it?
Awarded Jul 25 at 20:21
Why does CNN's ‘gravity hole’ in the Indian Ocean dip the sea level instead of raising it?
Awarded Jul 25 at 17:16
Why can't sunlight reach the very deep parts of an ocean?
Awarded Jul 25 at 15:19
Lagrange's equation is form invariant under EVERY coordinate transformation. Hamilton's equations are not under EVERY phase space transformation. Why?
Awarded Jul 24 at 17:56
Why gold is always measured with a balance and not with a scale?
Awarded Jul 24 at 2:21
Why gold is always measured with a balance and not with a scale?
Awarded Jul 22 at 21:27
The interpretation of mass in quantum field theories
Awarded Jul 20 at 12:56
What happens to matter in a standard model with zero Higgs VEV?
Awarded Jul 15 at 12:40
Rest mass of phonon: is this concept definable?
Awarded Jul 14 at 7:11
Why don't the first two laws of thermodynamics contradict each other?
Awarded Jul 14 at 1:02
What is the basis of gauge theory?
Awarded Jul 13 at 20:40
Why do disk brakes generate "more stopping power" than rim brakes?
Awarded Jul 13 at 12:20
What is the physical meaning of the partition function in statistical physics?
Awarded Jul 11 at 17:19
Why do ballpoint pens write better on pages that have pages below them?
Awarded Jul 10 at 4:42
What is the fundamental reason for the imaginary unit in Heisenberg's commutator relations?
Awarded Jul 5 at 7:30
Is the second law of thermodynamics a "no-go" theorem?
Awarded Jul 5 at 5:34
How close does a photon have to get to a black hole to do a full loop?
Awarded Jul 4 at 15:10
What exactly is the shape of an atom as per modern physics?
Awarded Jul 4 at 2:52
Is it possible to recover Classical Mechanics from Schrödinger's equation?
Awarded Jul 2 at 20:05
Is it possible to make an all natural smoke detector from Brazil nuts?
Awarded Jul 1 at 10:15
Why is rock or metal often cold to the touch but wood or plastic is not?
Awarded Jun 29 at 9:26
What is the physical significance of the imaginary part when plane waves are represented as $e^{i(kx-\omega t)}$?
Awarded Jun 28 at 17:16
Why are alpha particles made of 2 protons and neutrons?
Awarded Jun 26 at 22:11
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