User J.Todd

9

28

votes

6

answers

5k

views

Is a suit that hides a soldier's heat signature fundamentally possible?

Jan 3 '15 at 11:05 Wolphram jonny 15k

7

27

votes

2

answers

3k

views

Could the randomness of quantum mechanics be the result of unseen factors? [duplicate]

quantum-mechanics determinism randomness

Feb 24 '16 at 20:27 Qmechanic♦ 142k

4

27

votes

4

answers

40k

views

Is a bomb's shockwave strong enough to kill? [closed]

pressure acoustics explosions

Aug 12 '15 at 8:26 David Z 71.4k

3

18

votes

1

answer

4k

views

When heat is applied to the top of a stack of pennies, why does the bottom penny melt first?

thermodynamics metals

Feb 22 '15 at 20:17 ProfRob 92.5k

3

10

votes

1

answer

5k

views

Why is a whistle sound emitted when air is pushed through a tight space?

acoustics

Dec 5 '14 at 13:09 Floris 113k

1

5

votes

4

answers

216

views

Is there a theory where there are (recursively) infinitely smaller particles?

quarks elementary-particles unified-theories

Feb 26 '16 at 3:19 Community♦ 1

1

4

votes

3

answers

868

views

Why does shining a laser into an iPhone camera create these shapes?

optics visible-light laser camera

Aug 19 '15 at 0:16 Qmechanic♦ 142k

4

votes

2

answers

407

views

Why do Oreo crumbs float to a single glob at the very center in a glass of milk? [duplicate]

surface-tension buoyancy

Oct 10 '14 at 11:09 Community♦ 1

3

votes

2

answers

2k

views

Is time infinitely divisible? [duplicate]

time discrete

Dec 28 '14 at 6:42 Qmechanic♦ 142k

2

votes

1

answer

32

views

How would the expansion of space affect a very long rope? Why would the effect not violate the law of conservation of energy?

forces energy-conservation space-expansion

Jan 16 at 21:29 benrg 8,507

2

votes

3

answers

245

views

Could we curve the flight path of a photon?

photons

Oct 21 '19 at 23:32 my2cts 15.2k

2

votes

3

answers

458

views

What happens when we manipulate the observer in the double slit experiment?

quantum-mechanics double-slit-experiment measurement-problem observers

Jun 1 '16 at 8:28 Community♦ 1

1

2

votes

1

answer

470

views

How does “observation” affect physics?

quantum-mechanics measurement-problem observers

Nov 30 '14 at 0:16 Selene Routley 81.7k

1

vote

1

answer

81

views

Why don't we use orthographic viewing devices to see distant objects?

visible-light

Apr 8 '19 at 16:49 K. Kirilov 579

1

vote

1

answer

425

views

How does sound make water flow in zig-zag patterns?

water

Aug 10 '15 at 23:26 axelonet 452

1

vote

1

answer

605

views

Does a propeller being pushed through the air have more friction if free to spin?

friction

Jul 19 '15 at 20:11 docscience 10.9k

1

vote

2

answers

570

views

Why does projecting black light from a screen mask white light shining through it?

visible-light

Jun 29 '15 at 8:13 KalleMP 256

1

vote

3

answers

723

views

How much further can I throw a baseball (148 grams) than a grenade (453 grams)?

forces biophysics homework-and-exercises

Oct 29 '14 at 16:19 Diracology 15.4k

1

vote

0

answers

145

views

What is light and how does it travel? [duplicate]

visible-light speed-of-light aether

Sep 2 '14 at 9:22 Qmechanic♦ 142k

0

votes

0

answers

25

views

What effect what is my physicist roommate described where photons bouncing off each other affects how sub atomic particles interact?

photons subatomic

Nov 25 at 23:50 J.Todd 1,583

0

votes

1

answer

44

views

If I look into one of those infinite-reflection mirror rooms, would each deeper reflection show a scene from slightly further into the past?

speed-of-light

Jul 19 '17 at 9:24 Spirine 2,033

1

0

votes

0

answers

96

views

I don't get the concept of “God plays with dice” - In what scenario is it proven that he does? [duplicate]

quantum-mechanics quantum-interpretations determinism

Oct 27 '14 at 18:06 J.Todd 1,583

2

-1

votes

3

answers

31k

views

How much energy is released from the splitting of a single hydrogen atom?

homework-and-exercises atomic-physics hydrogen

Jan 4 '20 at 18:47 Karthik 1,528

-2

votes

2

answers

92

views

Does any literature exist hypothesizing Strange Quarks as a candidate for Dark Matter? [closed]

resource-recommendations dark-matter quarks

Aug 25 at 5:20 Qmechanic♦ 142k

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24 Questions

Is a suit that hides a soldier's heat signature fundamentally possible?

Could the randomness of quantum mechanics be the result of unseen factors? [duplicate]

Is a bomb's shockwave strong enough to kill? [closed]

When heat is applied to the top of a stack of pennies, why does the bottom penny melt first?

Why is a whistle sound emitted when air is pushed through a tight space?

Is there a theory where there are (recursively) infinitely smaller particles?

Why does shining a laser into an iPhone camera create these shapes?

Why do Oreo crumbs float to a single glob at the very center in a glass of milk? [duplicate]

Is time infinitely divisible? [duplicate]

How would the expansion of space affect a very long rope? Why would the effect not violate the law of conservation of energy?

Could we curve the flight path of a photon?

What happens when we manipulate the observer in the double slit experiment?

How does “observation” affect physics?

Why don't we use orthographic viewing devices to see distant objects?

How does sound make water flow in zig-zag patterns?

Does a propeller being pushed through the air have more friction if free to spin?

Why does projecting black light from a screen mask white light shining through it?

How much further can I throw a baseball (148 grams) than a grenade (453 grams)?

What is light and how does it travel? [duplicate]

What effect what is my physicist roommate described where photons bouncing off each other affects how sub atomic particles interact?

If I look into one of those infinite-reflection mirror rooms, would each deeper reflection show a scene from slightly further into the past?

I don't get the concept of “God plays with dice” - In what scenario is it proven that he does? [duplicate]

How much energy is released from the splitting of a single hydrogen atom?

Does any literature exist hypothesizing Strange Quarks as a candidate for Dark Matter? [closed]