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63f4794e-5ba5-4aee-9983-30973408b6d3
What's the relationship between $SL(2,\mathbb{C})$, $SU(2)\times SU(2)$ and $SO(1,3)$?
[{"id": "130318", "score": 1}]
108212
test
242705c7-b193-4f46-9bfd-e18576c517f0
Geocentric Model in General Relativity
[{"id": "118665", "score": 1}, {"id": "10933", "score": 1}, {"id": "102856", "score": 1}, {"id": "55444", "score": 1}, {"id": "74007", "score": 1}, {"id": "11185", "score": 1}, {"id": "70150", "score": 1}, {"id": "68953", "score": 1}, {"id": "86109", "score": 1}, {"id": "99572", "score": 1}]
24841
test
86e4a733-e524-4c1e-98dd-7e14bb75405b
Why the orbital angular momentum equal zero for electron in s state? does it mean that the electron doesn't orbiting in s
[{"id": "105703", "score": 1}]
112406
test
2ef72799-8036-4527-b537-f54a6304b09d
If the earth left the solar system for interstellar space. How long would it take for atmosphere to freeze
[{"id": "31162", "score": 1}]
2974
test
42a5c44b-1370-43da-9ffc-9a1cc020dd4c
Calculating restorative force with Hooke's Law
[{"id": "44967", "score": 1}]
44974
test
42eae313-7e6a-4c31-af2a-1b20cf5b0fe7
What exactly is a kilogram-meter?
[{"id": "62155", "score": 1}]
32096
test
64c109ae-6755-4126-8bd3-85b916c2b3d8
Doppler Shift when Light Travels Through Two Different Mediums
[{"id": "133983", "score": 1}]
133829
test
64e576f1-3461-4c94-b181-5e8e6f1b7f2f
reflection at speed of light when both mirror and viewer is travelling at the speed of light
[{"id": "8163", "score": 1}]
67712
test
07004c82-34eb-4249-befe-d9ff2bcd6ac2
Helpful tutorials on force
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39344
test
c4a7b624-7ed3-415d-9893-d8f04fa111ec
How is the classical twin paradox resolved?
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2554
test
5b65acba-85f6-4e89-9b4d-f1366346c528
Slit screen and wave-particle duality
[{"id": "35833", "score": 1}]
22923
test
45592591-2015-473d-87e0-9b267b89aa6e
Linearizing Quantum Operators
[{"id": "16080", "score": 1}]
27041
test
e5fcf8e1-4970-4cad-9eee-4eae2e494ad7
Why does light travel at the same speed when measured by a moving observer?
[{"id": "2230", "score": 1}, {"id": "107820", "score": 1}, {"id": "99795", "score": 1}, {"id": "128873", "score": 1}, {"id": "93268", "score": 1}, {"id": "66387", "score": 1}]
128161
test
0c69c871-1b20-49e2-b1fd-53f17e23c5b2
Spin - where does it come from?
[{"id": "131129", "score": 1}, {"id": "52669", "score": 1}, {"id": "822", "score": 1}, {"id": "1", "score": 1}]
67616
test
1702e789-e58c-4104-934d-3001e974f9f9
Explanation about black color, and hence color
[{"id": "118941", "score": 1}, {"id": "92535", "score": 1}]
21771
test
771cc74a-b0d5-485d-a0bb-9a548e647232
Mechanics around a rail tank wagon
[{"id": "70766", "score": 1}]
1683
test
bfa30446-ddfe-4bd8-8e57-267a77da7ad6
If sound travels through matter what medium does light travel through?
[{"id": "19670", "score": 1}]
133820
test
d690288d-8104-4a34-8ecf-fe74930a05ae
Simple pendulum and perpetual motion
[{"id": "69013", "score": 1}, {"id": "74881", "score": 1}]
89360
test
1436ff4e-d2de-43ac-a323-e74f582370ac
Pendulum period of different masses
[{"id": "71763", "score": 1}]
72510
test
343e02d7-7335-4fca-a87f-994ad3d59bf0
Why is it that protons and electrons have exactly the same but opposite charge?
[{"id": "21753", "score": 1}, {"id": "95512", "score": 1}]
33998
test
bbcc9a76-ba6a-42ea-bdc7-5ee89f020362
Is the Speed of Light an universal spacetime constant, the velocity of electromagnetic waves, or of photons?
[{"id": "126718", "score": 1}, {"id": "81800", "score": 1}]
126694
test
78de4797-f5ff-48ac-b704-ec21d3709e2d
Gauge pressure vs. absolute pressure?
[{"id": "93333", "score": 1}]
20460
test
c2a1bbee-3b7c-4f9c-9848-d1337b9155ce
When would the proposed black hole at the centre of Milky Way gulp in our solar system?
[{"id": "73705", "score": 1}, {"id": "26464", "score": 1}]
29208
test
4f5499cf-b039-4fb1-af8f-a8e0aeaefc57
How is a vacuum able to propagate light?
[{"id": "133581", "score": 1}]
109982
test
fe97725e-f182-4c36-b3d8-d6898f19e47a
If 'pure energy' is photons, and energy is conserved, how can matter and antimatter (electrons and positrons) annihilate into photons and vice-versa?
[{"id": "9731", "score": 1}]
107671
test
426e5616-9114-4169-8e02-46371e64cc68
Way to become a physicist
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79085
test
73bf2ce2-b5c8-4914-9183-5713e442fdf6
The "Nerd Sniping" problem. Generalizations?
[{"id": "111765", "score": 1}]
10308
test
f3346950-05ed-4989-8b8a-cb3ef46726e5
Electric field outside nonconducting sphere
[{"id": "56962", "score": 1}]
56983
test
869e6c5d-96d0-4dd6-b0d0-12d4fbecfe6f
Man on a rope task
[{"id": "106059", "score": 1}]
102760
test
dff3e6ab-48e0-44b6-b6ab-aa926c219096
Water coolso object by heat absorption
[{"id": "16549", "score": 1}, {"id": "43327", "score": 1}, {"id": "31694", "score": 1}, {"id": "72163", "score": 1}]
76367
test
07ba36ac-8dbb-482f-9f2e-18c0bca78b95
Why magnetic field generates around current carrying wire?
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130686
test
0bf56df9-e715-4c89-9e2f-457564700e75
gravitational lensing
[{"id": "14056", "score": 1}, {"id": "51844", "score": 1}]
102366
test
b6690926-5a73-4cb9-ab3d-fee682c7f5a8
Problem on nuclear physics radioactivity
[{"id": "14235", "score": 1}]
21194
test
de81bd1b-0a13-4ace-b12a-3c17edb47680
What experiments prove the greenhouse effect?
[{"id": "35572", "score": 1}]
29200
test
d5ee1778-cd32-403b-966b-0372ac03da9a
The role of SO(3) and SU(2) in quantum mechanics
[{"id": "96045", "score": 1}]
129340
test
153948e0-ecd4-4f60-8826-2442ed3af4d0
Massless charged particles
[{"id": "105413", "score": 1}, {"id": "69502", "score": 1}]
7905
test
a3cb635a-17d0-402c-95e9-bf6010271d38
The nature of the gravity force: Is it attractive or repulsive between positive and negative mass?
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101725
test
5b5dee7b-2a35-4627-9710-6b733eac3c6d
Does the Sun produce audible sound?
[{"id": "107195", "score": 1}]
106652
test
aebac815-445c-4f70-900c-fd0d6f923b1f
Does the sign of $\Delta x$ matter in this time dilation calculation?
[{"id": "113651", "score": 1}]
38236
test
5c425176-f284-4458-b84d-2e7e8699af22
How are the definitions of a coherent state equivalent?
[{"id": "91234", "score": 1}]
90034
test
2212a590-3bdc-407c-87c5-0c10c7425d18
Is it possible for a photon to be at rest?
[{"id": "16018", "score": 1}]
71639
test
b8ca0b69-2d16-4b1f-9d6c-985bc5aa83f1
What's the standard "roadmap" to learning quantum physics?
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19262
test
caccd825-4636-4f72-b61e-1fe96f1b49b2
What were the intention/conclusions for Michelson-Morley experiment?
[{"id": "103444", "score": 1}]
34689
test
29090c3a-b0e7-4600-bf19-48d8cf4e3f47
Energy & Mass of a Photon
[{"id": "6202", "score": 1}, {"id": "53321", "score": 1}]
132988
test
3224e245-0a2e-4f01-930e-a30ddcaf8cd4
What point of application of force ensures more acceleration in a rod?
[{"id": "134964", "score": 1}]
126766
test
f3b6f24d-782c-4e26-99d6-e6a543f9fb80
How does displacement current come about?
[{"id": "64356", "score": 1}, {"id": "83715", "score": 1}]
101727
test
5d739569-b4be-4021-a11d-6c2a0538518b
Why is the Ampere a base unit and not the Coulomb?
[{"id": "120139", "score": 1}]
70651
test
c2b2417f-5d28-4142-80b8-4649ea0ab74e
Noticing that Newtonian gravity and electrostatics are equivalent, is there also a relationship between the general relativity and electrodynamics?
[{"id": "575", "score": 1}, {"id": "76126", "score": 1}, {"id": "9560", "score": 1}]
944
test
2db3191d-e578-4dea-ae5d-2f2e666e486c
Chemical potential of photons
[{"id": "6687", "score": 1}, {"id": "60499", "score": 1}]
108924
test
1a6844b3-4e24-46ac-a84b-543ece0b8418
What is the minimum amount of fissile mass required to acheive criticality?
[{"id": "16250", "score": 1}]
13325
test
d58e9cf9-8fe1-4f3c-a039-7c72fcf4ad93
Why do the electron in Bohr's principal quantum levels or ground state do not emit radiation?
[{"id": "68381", "score": 1}, {"id": "72588", "score": 1}]
130936
test
d888df9d-4c5d-475e-bb71-269d9ad78583
Is Dark Energy Pushing Us Or Pulling Us?
[{"id": "15546", "score": 1}]
106501
test
8ccaed44-2e27-41e1-b745-08611e9dc79a
Are there any naturally occurring perfect circles?
[{"id": "49960", "score": 1}]
72535
test
995a3685-14e0-49d0-8745-c6dcc56a436d
Which Optics textbooks are good?
[{"id": "21288", "score": 1}, {"id": "43133", "score": 1}, {"id": "15970", "score": 1}]
126769
test
49634d91-9655-4a07-971c-7800a965105c
Identification of particles and anti-particles
[{"id": "87676", "score": 1}]
81787
test
fb2897fa-2be3-4f61-a77b-ffd826920589
Explanation of photon reflection
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83265
test
cdfe9067-1714-4662-a023-bed558228490
Has the black hole information loss paradox been settled?
[{"id": "131462", "score": 1}]
3521
test
62d11391-420b-4695-9787-bef64e558f0b
Einstein's postulates <==> Minkowski space. In layman's terms
[{"id": "12435", "score": 1}, {"id": "76716", "score": 1}]
12463
test
8f48c2d3-92fb-4df9-940c-059aee151047
Did the researchers at Fermilab find a fifth force?
[{"id": "8358", "score": 1}]
8248
test
e818def1-13ce-4951-be45-6eb77fdb97cd
Why is light produced when an underwater bubble is collapsed with a sound wave?
[{"id": "29961", "score": 1}, {"id": "111076", "score": 1}]
66044
test
f2b697a8-500b-490f-a10b-3333f07f5235
Do atmospheric physics prevent hot air balloons from ascending over 60,000ft?
[{"id": "112903", "score": 1}]
17408
test
9eacc545-9a71-47a8-a65b-bfa88ab9872e
How to find orbital radius of star in a binary system using redshift and orbital period data?
[{"id": "22700", "score": 1}]
28929
test
f99cd658-beb7-46fb-a9a9-efee318cb546
How can a wooden spoon be used to prevent water from over boiling?
[{"id": "88507", "score": 1}]
31029
test
f2bf788d-44e5-4746-a388-6a74942ba129
Does gravity weaken by the square of the distance because the energy is dispersed over the square of the distance
[{"id": "47193", "score": 1}, {"id": "48447", "score": 1}, {"id": "78975", "score": 1}]
134979
test
539a344e-ef65-4aea-8250-965b51e235b2
Why is torque not measured in Joules?
[{"id": "86821", "score": 1}]
37881
test
db176f93-d04e-4e2d-b44f-2b8a95ca7566
Open-source up-to-date cosmological datasets
[{"id": "13445", "score": 1}]
110543
test
ae3078ea-161f-40d1-ab32-96ebf32263fc
Energy efficiency of antimatter producion
[{"id": "24832", "score": 1}]
30616
test
b18e83f6-a1fc-4b30-ad1a-784b0804a729
How exactly does curved space-time describe the force of gravity?
[{"id": "71817", "score": 1}, {"id": "60726", "score": 1}]
3009
test
b82e7e44-99bc-467e-ba86-de77d4fe4875
Angular Momentum of a rigid, extended object
[{"id": "100154", "score": 1}]
91181
test
ca42fcb3-bb29-4a02-856b-3d7fe8d6cc2a
Why does the refractive index depend on wavelength?
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71126
test
4c26f53c-6bd6-4198-afd5-873500393621
Antiparticles as "holes" of the quantum fields?
[{"id": "129613", "score": 1}]
129654
test
aaad978a-b735-41dc-b707-630a93d2e905
About Hilbert and Physics
[{"id": "87239", "score": 1}]
111236
test
0cae4fd7-0fab-4bca-a6fe-5d1943bc04d5
Why is it that using cell phone can invite lighting strike?
[{"id": "2023", "score": 1}]
2056
test
ad4f0324-ed9c-47b7-b4e8-c798f68fdc49
Understanding weight on an inclined plane
[{"id": "69456", "score": 1}]
4635
test
d113d66d-0632-494f-9d83-0fe456dcb302
Could two different bases of a Hilbert space have different cardinality?
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87476
test
a139b9ff-3fb2-4f05-ba47-7baa0f48f435
Best way to chill a cup of coffee with cold water and 5 minutes
[{"id": "5265", "score": 1}]
68302
test
12a59a1a-5f4e-402a-89b6-12854e8acb41
Supersymmetry in Quantum Field Theory
[{"id": "96374", "score": 1}]
30353
test
33bd37a6-dcd9-4b54-a90d-0e1b2baa1c4f
On the atomic level how do permanent magnets work?
[{"id": "45695", "score": 1}, {"id": "73666", "score": 1}]
75756
test
404d59de-8a12-45b5-b2ba-c30fb97d70e4
Physics textbook for mathematicians
[{"id": "6047", "score": 1}, {"id": "91326", "score": 1}]
53519
test
70bb6040-655b-4b16-8835-370fa7f2911d
Physical meaning of force times area
[{"id": "39616", "score": 1}]
41494
test
027abce6-db1e-40cd-92c3-09c63c4a5f27
Why do we think there are only three generations of fundamental particles?
[{"id": "68294", "score": 1}]
2051
test
3a076e67-2402-4949-85f1-0452e9001755
Why does the (relativistic) mass of an object increase when its speed approaches that of light?
[{"id": "93470", "score": 1}, {"id": "91974", "score": 1}, {"id": "14897", "score": 1}, {"id": "98387", "score": 1}]
1686
test
2cedd8c2-e68f-42ce-b7a0-81e30562a57e
Could a super conductor actually be used to repel gravity?
[{"id": "16474", "score": 1}]
105013
test
4ecc859f-3072-4fd5-9ad9-29f6a258351c
Why does dilation invariance often imply proper conformal invariance?
[{"id": "24776", "score": 1}]
6384
test
6d76cedb-5246-4044-bb72-4cb329a32060
Thermo-Emf variation with temperature
[{"id": "128218", "score": 1}]
112270
test
dac7855b-0962-4ba4-8f27-321bafc74f21
What is the meaning of speed of light $c$ in $E=mc^2$?
[{"id": "129921", "score": 1}]
19816
test
3cb7fe15-d104-4119-b480-b83914fda2d0
What is invisible to x-rays?
[{"id": "68833", "score": 1}]
33258
test
5f9cec21-5e4e-482c-af8f-e8f801da74c7
How can we be sure that nature isn't "faking" quantum statistics?
[{"id": "69718", "score": 1}]
17034
test
c79e89be-ab0c-4d92-b209-2d1a25b3590c
What is difference between Inertial mass and gravitational mass
[{"id": "8610", "score": 1}, {"id": "77199", "score": 1}, {"id": "71940", "score": 1}]
96010
test
905bb3c2-dc85-4e5f-b3f4-d618937ef711
Measurements and simultaneity
[{"id": "5524", "score": 1}]
66980
test
9de8b6e1-8474-4aa9-872b-b5d16cb6f78d
Can mass be totally converted into energy?
[{"id": "47417", "score": 1}, {"id": "78119", "score": 1}, {"id": "67647", "score": 1}, {"id": "103820", "score": 1}]
134157
test
f16f4675-8d74-4631-a5da-e4f6d6efd502
Why do the planets orbit the Sun?
[{"id": "5905", "score": 1}]
104237
test
ea4f6184-6145-4bf3-8f8a-26db2f75478b
Is there a way to save electricity from lightning?
[{"id": "31254", "score": 1}]
37981
test
67b5214c-4087-4258-ae0b-acc055f9a3de
Can a particle be *physically* observed inside a quantum barrier?
[{"id": "128378", "score": 1}, {"id": "77585", "score": 1}]
11188
test
6d84e3ec-75aa-4de2-a304-a8e69fc7c1a0
What is the physical significane of Complex Time Evolution in EM Waves?
[{"id": "80028", "score": 1}]
101649
test
5f460242-8457-4364-8ba6-fd50b3df7918
Why not an Electric Theory of Everything?
[{"id": "18950", "score": 1}]
52396
test
8ffc62d1-1b82-4b8a-87c4-6586d00d0ec7
Water Displacement in the Oceans As a result of Global Warming
[{"id": "28547", "score": 1}]
112476
test
ad1cbc22-5ae0-48a6-b91a-4416489618c5
Why isn't temperature measured in Joules?
[{"id": "78137", "score": 1}]
60830
test
c178a9af-5846-4018-99d3-961bec74a057
Hurdles in creating (close to) infinite images
[{"id": "55254", "score": 1}]
59617
test
9df08ad3-f26e-40ae-b861-7412fb4b9905
Time for two objects to gravitationally attract each other
[{"id": "14700", "score": 1}]
28094
test