Physics

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Answer score of 10 or more. This badge can be awarded multiple times.

earned this badge 30 times.
Why do images not appear inverted when looking directly through a pinhole camera?
Awarded 12 hours ago
Angular momentum in movement along a straight line
Awarded Apr 7 at 7:34
Are the speed of sound and water ripples' speed the same?
Awarded Feb 28 at 12:27
Does cooking food in pressure cooker depend on outside pressure
Awarded Jan 27 at 7:20
How can Cooper pairs form in zero temperature, if there are no phonons?
Awarded Dec 2 '20 at 13:17
Is continuity of the wavefunction “put in by hand” for the Dirac delta potentials?
Awarded Nov 16 '20 at 16:47
Why doesn't a mercury thermometer follow the rules of volume dilatation?
Awarded Nov 12 '20 at 9:11
Are eigenfunctions of $E$ also eigenfunctions of $p$?
Awarded Nov 11 '20 at 20:47
Do elementary particles at rest produce magnetic fields?
Awarded Oct 26 '20 at 14:05
How can different points on a rigid body move with different speeds but also be relatively at rest?
Awarded Aug 16 '20 at 6:50
How does Fermat's principle make light choose a straight path over a short path?
Awarded Jul 28 '20 at 1:41
Meissner Effect and Lorentz Force Paradox?
Awarded Jul 16 '20 at 22:57
Intuition behind Bernoulli's equation
Awarded Jun 9 '20 at 18:16
Misunderstanding of the magnetic field
Awarded Jun 8 '20 at 16:17
Triviality of interacting QFT
Awarded Jun 6 '20 at 17:46
Non-unique zero function in the function space (Hilbert space)
Awarded Apr 21 '20 at 14:11
Can you make a laser without cavity, if you have a pump strong enough? I think no, but is my reasoning correct?
Awarded Apr 13 '20 at 12:30
Chirality of the Electromagnetic Field Tensor
Awarded Apr 6 '20 at 1:20
Why don't we define potential due to a magnetic field?
Awarded Dec 27 '19 at 17:25
Why does $\langle \psi_1 \psi_2 | H_1|\psi_1 \psi_2 \rangle= \langle \psi_1 | H_1|\psi_1 \rangle \langle \psi_2 | \psi_2 \rangle$?
Awarded Nov 22 '19 at 20:55
Why do we need the coupling small when doing perturbative QFT calculation?
Awarded Oct 9 '19 at 21:40
How does a linear operator act on a bra?
Awarded Sep 14 '19 at 3:00
Complex conjugate and transpose “with respect to a basis”
Awarded Sep 8 '19 at 16:55
Can a Hermitian operator $A$ bring a wavefunction $|\psi \rangle$ out of Hilbert space?
Awarded Sep 6 '19 at 16:45
Approximating an expression for a potential
Awarded Aug 5 '19 at 12:20
Lorentz invariance of Maxwell's equations in matter
Awarded May 8 '19 at 18:30
Can a battleship float in a tiny amount of water?
Awarded Dec 16 '18 at 16:30
Is the right hand rule a trick to avoid tensors?
Awarded Sep 8 '18 at 20:00
Why does rainwater form moving waves on the ground? Is there a name for this effect?
Awarded Mar 19 '17 at 17:45
Why does a body always rotate about its center of mass?
Awarded Feb 13 '17 at 3:20

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