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102477
Physical interpretation of Fermi golden rule?
71901
Why aren't superconductors shiny?
113749
Is there experimental evidence that massless particles such as photons attract massive objects?
68940
Virtual photons, what makes them virtual?
78500
Linearized equations
78508
Why does Quantum Field Theory use Lagrangians rather than Hamiltonains?
92454
Guinier regime for form factor
28647
Why is matter drawn into a black hole condensed into a single point within the singularity?
77741
Why don't photons crash into each other occasionally? Or do they?
83070
What's the shear rate in a turbulent flow?
38246
Formulas for compressibility of solids (physics)
31326
Is a hard drive heavier when it is full?
41937
Non-linear dynamics of classical hydrogen atom
118900
Question about Hubble's Law - expansion vs receding velocity
103641
Very specific type of GR paper hunt
55760
What are the implications if Supersting theory is discredited?
52008
Does light accelerate or slow down during reflection?
25110
Why are orbits elliptical?
57181
What are the potential technological advances that the discovery of the Higgs boson may unlock?
53356
Reference on Chern-Simons theory
68599
What sets a "Law" apart from a "Rule" or a "Principle"?
3833
Age of the Earth and the star that preceded the Sun
109060
Is cosmic background radiation absolute
6147
Time Dilation - How does it know which Frame of Reference to age slower?
7063
What actually happens when an anti-matter projectile collides with matter?
69679
Can solar furnace achieve higher temperature than sun surface?
60336
Facts About Quarks Electric Charge
69350
Drag force at high speeds
80777
Shifting the energy reference level
9340
Does the renormalization group apply to string theory?
68757
Why do neutrinos propagate in a mass eigenstate?
44351
Why are we not using thorium for energy?
62222
Cancelling special & general relativistic effects
35139
What is the possibility of a railgun assisted orbital launch?
13851
Can you split a photon?
25637
How to correct flares and sharply focus on my telescope when viewing planets.
65339
How & Why does accelerating charges radiate electromagnetic radiation?
104423
Calculating impact velocity and time with non-uniform acceleration
30198
How to bend light?
107614
Why "Dark Energy" is called energy instead of force?
132440
If atoms have specific energy levels, why do opaque solids absorb all visible light, not just some?
132449
Why do we fall down when the bicycle slows down?
135145
Change in momentum
45247
Trying to understand the tension in a spring with two weights attached
70200
Why electrons can't radiate in their atoms' orbits?
123857
Mathematical calculation of probability of existence of planet similar to earth
46180
Can a deformable object "swim" in curved space-time?
120191
How much wind does it take to tip a sign over?
60699
High Frequency Active Auroral Research Program (HAARP) And Earthquake Myth or Reality?
122841
Leg Press & Actual Lifted Weight
24359
Why do objects follow geodesics in spacetime?
61643
Does more rain strike a vehicle while moving or while stopped (or neither)?
110401
Number of planks required to stop the bullet
55698
What is the role of center-tapping in a full wave rectifier?
98714
How are symmetries precisely defined?
119083
Exeeding the speed of light by adding velocities
14044
Can superconducting magnets fly (or repel the earth's core)?
3264
Thermal radiation spectrum of a blackbody
77867
Extra dimensions and the big bang
31869
Designing a plausible faster than light drive: the Space Skip Drive
113523
Sign convention for mirror and lens formulas
70439
How occurs the enantiomorph of the mirror?
1051
conversion of information to energy
10870
Calculating position in space assuming general relativity
61845
Some basic questions about electric field & nucleus
102222
How does a half-life work?
113660
Infinities in Newtons law of gravity (for point particles)
62711
What happens to things when things get crushed in a blackhole
661
Is it possible to blur an image in such way that a person with sight problems could see it sharp?
91797
Why would an electron in an orbit be accelerating continuously and would thus radiate away its energy and fall into the nucleus in a classical model?
27326
Uniqueness of eigenvector representation in a complete set of compatible observables
75002
Travel duration from Earth to a star at 9.8 m/s² acceleration
71589
Is it possible for a planet to be made entirely of water (even it's core)?
39253
Is it possible for one black hole to pull an object out of another black hole?
119935
Maximum helicopter height
58122
Why work to change velocity from 0 to 20 km/h is less then from 20 to 40?
123743
Problem about entropy
95053
Radiation– white vs black house, hot or cool?
22542
Measuring extra-dimensions
117205
How does the evolution of a solar system not break the second law of thermodynamics?
107563
What's the proof that the polarization occur s to the electric field of the light?
107561
Dependence of Force as a function of Distance?
105875
Blackbody radiation and Spectral Lines
83101
Expansion of a function
44882
What are good books for graduates/undergraduates in Astrophysics?
9708
Is fire matter or energy?
111530
Would atmosphere of Jupiter blow up if I launched a atomic bomb there?
45545
Relativistic Hamiltonian Formulations
97886
Is powered delivered to an Incandescent light bulb changing with time?
36440
What causes an electric shock - Current or Voltage?
114887
Hubble time and its derivation?
9
Hamilton's Principle
87976
Direction of friction when a car turns
134378
Do we weigh less in the morning?
134370
Expanding universe space through matter or matter through space?
134081
Why graviton is spin 2 instead of spin 1?
70123
Can a submerged place in the sea have huge air pockets?
71292
Why does a cork float to the side of a glass?
41573
From how deep into space can a human "skydive" back to earth?
119441
Time dilation at the Big Bang