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92313
The definition of Lagrangian
57137
How soon that a force affect another object?
69657
How could vacuum energy cause the expansion of the universe?
56888
rephrasing my question on QFT and path intergrals?
13388
At what speed does our universe expand?
54656
When can one write $a=v \cdot dv/dx$?
73825
The future of supersymmetry
29642
In a neutron star - what force keeps the neutrons from getting closer and closer?
72447
Why this perpetuum mobile can't be possible?
51776
How are current and voltage out of phase in capacitive circuit?
130171
At what speed will objects hit a singularity?
18691
Topics in particle cosmology
47291
How could the relative zero gravity of the International Space Station be canceled?
47128
exponential potential $ \exp(|x|) $
39263
Science behind the singing wine glass
12664
Proving that interval preserving transformations are linear
111696
Hydrostatic pressure at the center of a water planet
8420
Strongest force in nature
93130
Is it wasteful to use a heating element, instead of doing useful work?
55458
Why is the Lagrangian quadratic in $\dot{q}$?
68198
Why can't some light ever reach earth?
68223
The secret behind the spinning, asymmetrically weighted, 2D disk-shaped top?
43919
Dark Energy saving the world
89335
Self-contained book about complex systems and nonlinear dynamics
69281
The interaction picture doesn't exist?
99338
Transportation using disintegration
49837
How do stars look like from space?
46824
A thought experiment with Heisenberg's Uncertainty Principle
79136
Buzzing/Vibration in body under power lines
79685
If the source of sound is vibration, why can't we "hear" a object whose molecules are vibrating?
73162
Should we necessarily express the dimensions of a physical quantity within square brackets?
34834
An example of non-Hamiltonian systems
107746
Spinning of the Earth
6582
What sort of jobs do physics graduates with B.Sc/M.Sc get?
130999
Why do we observe opposite motion of trees (nearer) and trees (distant) when seen from a moving frame?
70463
Exchange particles-real or just mathetical constructs?
89988
Can we actually prove with 100% accuracy that there is more than 3 dimensions plus time (t,x,y,z)?
7479
A Basic Question about Gravity, Inertia or Momentum or something along those lines
110615
What does 1/k represent regarding Newtons Law of Cooling?
19548
Does mass affects accelleration of an object in a sloapy movement?
46327
Flames with no gravity?
46324
To which extent is general relativity a gauge theory?
43665
Logical requirement of newton's third law
34366
Time taken for object in space to fall to earth
34364
Why does a cuboid spin stably around two axes but not the third?
73393
A question about the higher-order Weyl variation for the geodesic distance
103110
A black torch to darken everything
87260
Time Slowing Down
102719
What is the formula for determining time dilation (as the object in motion)?
109992
Heat energy in special theory of relativity
128875
How to find the potential energy?
77020
Are Lorentz force and maxwell's equations independent?
96081
Is the second law of thermodynamics a fundamental law, or does it emerge from other laws?
35660
Is there a difference between a postulate and a principle in physics?
73051
Do cosmologically redshifted photons violate energy conservation?
98437
Why absence of electron is called hole?
156
How are the northern lights produced?
83845
Can air bubbles sink at extreme depths?
15855
How does quantum trapping with diamagnets work?
89002
Why treat complex scalar field and its complex conjugate as two different fields?
33507
Quantum mechanic newbie: why complex amplitudes, why Hilbert space?
21654
How to find the value of the parameter $a$ in this transfer function?
90469
Do all massless particles (e.g. photon, graviton, gluon) necessarily have the same speed $c$?
28093
Relation between water flow and pressure
28094
Time for two objects to gravitationally attract each other
104237
Why do the planets orbit the Sun?
112270
Thermo-Emf variation with temperature
68302
Best way to chill a cup of coffee with cold water and 5 minutes
3009
How exactly does curved space-time describe the force of gravity?
31029
How can a wooden spoon be used to prevent water from over boiling?
72535
Are there any naturally occurring perfect circles?
132988
Energy & Mass of a Photon
7905
Massless charged particles
21194
Problem on nuclear physics radioactivity
126694
Is the Speed of Light an universal spacetime constant, the velocity of electromagnetic waves, or of photons?
27041
Linearizing Quantum Operators
32096
What exactly is a kilogram-meter?
22404
Will the hole on a metal disc expand or contract upon heating?
102791
Quarks are now considered to be fundamentals, but so were atoms some time ago. So the way we see is only limited by our technological advances?
104302
Size of Universe after inflation
74517
Does a 27 hp engine output the same amount of energy as lifting a 1 ton stone block almost 3 meters per second?
10311
Does it exist a free good molecule / atom simulation software?
63278
What counts as "observation" in Schrödinger's Cat, and why are superpositions possible?
41717
How is it possible to come to a conclusion that Universe is a result of the Big Bang while we aren't able to observe the entire Universe?
7732
If the Sun were to suddenly become a black hole of the same mass, what would the orbital periods of the planets be?
52515
What is a natural movement of a ball on a upward curve (the two arrow lines pointing upward) given no external force?
82418
Analytic solution for angle of minimum deviation?
64253
Distance away from earth to see it as a full disk
85975
How much extra distance to an event horizon?
77143
What does it mean for a QFT to not be well-defined?
357
Home experiments to derive the speed of light?
2254
When water climbs up a piece of paper, where is the energy coming from?
9468
In what order should the subjects be studied in order to get to String Theory
35781
Why are atoms particles?
127408
Features used in quantum mechanics but not used in classical mechanics
18148
Current against the inverse of resistance graph, $I = V/R +c$
39170
Good Magnetic Simulation Software?
12717
Charging 12V 150Ah battery
111866
Intuitive meaning of Dot Product
62474
Does friction depend on the area between bodies thats in contact?