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Top Questions
24
votes
Why did the United States drop a uranium bomb instead of a plutonium bomb on Hiroshima?
world-war-two
nuclear-weapons
hiroshima
asked Feb 21 at 23:22
history.stackexchange.com
23
votes
Fields finitely generated as $\mathbb Z$-algebras are finite?
commutative-algebra
finite-fields
asked May 23, 2012 at 12:52
math.stackexchange.com
15
votes
Why did my leaking pool light trip the circuit breaker, but not the GFCI?
electrical
circuit-breaker
gfci
safety
asked Jun 30, 2019 at 15:02
diy.stackexchange.com
8
votes
If Statements in Plain TeX
conditionals
asked Apr 25, 2021 at 14:15
tex.stackexchange.com
8
votes
When Did Moses Receive the Torah
tanach
moshe-rabbeinu
kabbalat-hatorah
shemot-exodus
asked May 21, 2017 at 23:05
judaism.stackexchange.com
8
votes
Understanding a Bill Thurston popularization of knot complements
knot-theory
low-dimensional-topology
asked Mar 30, 2018 at 4:57
math.stackexchange.com
8
votes
Physics of heating a swimming pool
thermodynamics
asked Jun 6, 2016 at 13:01
physics.stackexchange.com
8
votes
Can Mathematica solve this sort of functional/differential equation?
equation-solving
differential-equations
asked Oct 7, 2013 at 19:48
mathematica.stackexchange.com
7
votes
Is Tsirelson's Bound the only constraint on these quantum correlations?
quantum-mechanics
quantum-information
asked Aug 22, 2011 at 4:28
physics.stackexchange.com
7
votes
Higgs Boson: The Big Picture
particle-physics
standard-model
higgs-boson
symmetry-breaking
higgs-mechanism
asked Aug 25, 2012 at 23:02
physics.stackexchange.com
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Top Answers
43
If all motion is relative, how does light have a finite speed?
physics.stackexchange.com
39
How far out from the Sun is visible light still sufficient to read a book?
physics.stackexchange.com
33
Does pure yellow exist in variations we can't discern?
physics.stackexchange.com
28
Which one to learn first: Special or general relativity?
physics.stackexchange.com
28
Couldn't we always redefine units so that inertial mass and gravitational mass are equal?
physics.stackexchange.com
26
Identification of a quadrilateral as a trapezoid, rectangle, or square
math.stackexchange.com
26
If clocks themselves are based on light signals, wouldn't we expect the measured speed of light to always be the same constant?
physics.stackexchange.com
25
What is a wave function in simple language?
physics.stackexchange.com
22
Can general relativity be explained by equations describing a fabric of space embedded in a flat 5-dimensional Minkowski space?
physics.stackexchange.com
21
What do sine, tan, cos actually mean?
math.stackexchange.com
21
Can quantum entanglement be used to coordinate actions at "FTL speeds" without breaking causality or actual faster-than-light communication?
physics.stackexchange.com
20
The usage of chain rule in physics
physics.stackexchange.com
20
A nonsplit short exact sequence of abelian groups with $B \cong A \oplus C$
math.stackexchange.com
17
Does throwing a penny at a train stop the train?
physics.stackexchange.com
15
How does a photon experience space and time?
physics.stackexchange.com
14
Why would FTL imply time travel?
physics.stackexchange.com
14
How exactly are Lorentz transformations rotations?
physics.stackexchange.com
14
What exactly does the belt/plate trick demonstrate?
physics.stackexchange.com
13
Special relativity: sensing speed and time from a rocket
physics.stackexchange.com
11
What is an example of three numbers that do not make up a vector?
physics.stackexchange.com
11
Why do we remember the past but not the future?
physics.stackexchange.com
11
If there is no absolute time, how can we say the Big Bang was 13.8 billion years ago?
physics.stackexchange.com
11
Understanding quantum entanglement.. help me validate this analogy!
physics.stackexchange.com
11
Doesn't the Schrödinger's cat inside the box cause the probability wave function to collapse long before a human opens the box?
physics.stackexchange.com
11
Does some proof of arithmetic's consistency exist?
math.stackexchange.com
10
Is there a way to visualize curvature of time?
physics.stackexchange.com
10
Why do we perceive a mixture of blue and yellow paint as green?
physics.stackexchange.com
10
In the twin paradox does the returning twin also come back permanently length contracted flatter than the twin on Earth?
physics.stackexchange.com
10
What is the proper way to explain the twin paradox?
physics.stackexchange.com
9
Why associativity $h \circ (g \circ f) = (h \circ g) \circ f$ is required in composition?
math.stackexchange.com
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