User HyperLuminal

113 votes

4 answers

15k views

Why do electrons, according to my textbook, exist forever?

asked Apr 27, 2015 at 17:14

32 votes

5 answers

5k views

Why don't things get destroyed by gas molecules flying around?

statistical-mechanics pressure velocity air estimation

asked Apr 22, 2015 at 13:14

10 votes

1 answer

11k views

Could a vacuum airship be possible? [duplicate]

pressure vacuum air density buoyancy

asked Jul 21, 2015 at 1:24

7 votes

1 answer

20k views

Why do we see brown light?

visible-light laser vision perception

asked Jul 27, 2015 at 13:30

7 votes

3 answers

1k views

Do different plasmas from different elements have different properties?

plasma-physics states-of-matter matter elements

asked Apr 22, 2015 at 11:01

6 votes

5 answers

55k views

What is the voltage of an average carpet static shock? Can you make it lethal?

electricity electric-current voltage

asked Apr 23, 2015 at 12:31

4 votes

1 answer

5k views

Is there an Ideal Liquid Law? Or Solid Law?

ideal-gas states-of-matter matter

asked Apr 22, 2015 at 12:14

4 votes

2 answers

638 views

Optics phenomenon with my glasses?

optics visible-light polarization

asked Jul 27, 2015 at 14:20

3 votes

5 answers

4k views

What compounds or elements only have one phase or two phases?

physical-chemistry phase-transition states-of-matter matter

asked Apr 22, 2015 at 12:38

3 votes

2 answers

1k views

What is the maximum net force of surface tension per gram of water?

forces water surface-tension

asked Apr 20, 2015 at 23:28

3 votes

4 answers

2k views

Where does air pressure come from?

thermodynamics gravity pressure ideal-gas atmospheric-science

asked Apr 24, 2015 at 12:24

3 votes

2 answers

5k views

Is the second defined arbitrarily? [duplicate]

time si-units metrology

asked Apr 27, 2015 at 13:02

3 votes

1 answer

186 views

Is their a visual difference between air-gap sparks of the same voltage but different current?

electricity electric-current electrical-resistance voltage

asked Jun 8, 2015 at 15:18

2 votes

2 answers

657 views

Good layman definition of the critical point(phases) and supercriticality

statistical-mechanics definition phase-transition matter critical-phenomena

asked Apr 28, 2015 at 22:20

2 votes

3 answers

5k views

How are the higher derivatives (jerk, jounce) of position with respect to time used in physics? [duplicate]

time acceleration velocity jerk

asked Jun 11, 2015 at 17:56

2 votes

2 answers

663 views

How long do electrons take to "decide" how to go through a circuit?

quantum-mechanics electricity electric-circuits electrons

asked Jun 8, 2015 at 16:47

2 votes

1 answer

8k views

Why did scientists use a zinc-sulfide coated screen to detect the alpha, beta, and gamma radiation?

electrons radiation particle-detectors gamma-rays

asked Jun 18, 2015 at 15:47

2 votes

2 answers

97 views

Is this a possible monopole setup, or will it cancel out? [duplicate]

experimental-physics magnetic-fields magnetic-monopoles thought-experiment levitation

asked Apr 14, 2015 at 21:37

2 votes

3 answers

37k views

Is heat from a stovetop, transfered through convection, radiation or conduction?

thermodynamics radiation convection heat-conduction

asked Apr 23, 2015 at 21:46

2 votes

3 answers

2k views

Is a black hole a 3D hole? And doesn't it pull into the 4th dimension?

general-relativity black-holes spacetime event-horizon singularities

asked Apr 21, 2015 at 14:09

1 vote

1 answer

224 views

Since electron clouds of different atoms repel each other, does that mean that touch is the feeling of electromagnetic repulsion? [duplicate]

electromagnetism electrons atomic-physics

asked Apr 22, 2015 at 13:05

1 vote

1 answer

1k views

How fast would you have to go to claim you saw the red light as green due to the Doppler Effect?

visible-light speed-of-light doppler-effect

asked Apr 23, 2015 at 13:11

1 vote

2 answers

62 views

If I flex my arm, where is the "equal and opposite" reaction?

newtonian-mechanics action

asked May 2, 2015 at 16:03

1 vote

3 answers

189 views

Can we have electronics with charge carriers OTHER than electrons?

electricity electrons charge electronics carrier-particles

asked May 19, 2015 at 20:47

1 vote

1 answer

457 views

If you brought a hollow one-inch cube of steel filled with air into space, would the air exert a pressure of 14.7 psi on the cube?

pressure vacuum air

asked Jul 21, 2015 at 13:59

0 votes

0 answers

127 views

Is it possible to raise the voltage of a power source by lowering its current indefinitely (i.e. transformers)?

electricity electric-current voltage electronics

asked Jun 8, 2015 at 15:15

0 votes

1 answer

275 views

Quantum violation of Newton's Third Law? [closed]

quantum-mechanics newtonian-mechanics quantum-information conservation-laws information

asked May 2, 2015 at 15:59

0 votes

1 answer

3k views

How does this capillary-action setup not become a perpetual motion machine?

thermodynamics water surface-tension perpetual-motion capillary-action

asked Jun 8, 2015 at 15:27

0 votes

0 answers

81 views

Is there any quantum experiments or effects that you can do at home? [duplicate]

quantum-mechanics everyday-life quantum-entanglement double-slit-experiment home-experiment

asked Jun 8, 2015 at 16:51

0 votes

1 answer

738 views

What is the unit of information as defined by information theory?

units probability information

asked Jun 18, 2015 at 15:13

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41 Questions

Why do electrons, according to my textbook, exist forever?

Why don't things get destroyed by gas molecules flying around?

Could a vacuum airship be possible? [duplicate]

Why do we see brown light?

Do different plasmas from different elements have different properties?

What is the voltage of an average carpet static shock? Can you make it lethal?

Is there an Ideal Liquid Law? Or Solid Law?

Optics phenomenon with my glasses?

What compounds or elements only have one phase or two phases?

What is the maximum net force of surface tension per gram of water?

Where does air pressure come from?

Is the second defined arbitrarily? [duplicate]

Is their a visual difference between air-gap sparks of the same voltage but different current?

Good layman definition of the critical point(phases) and supercriticality

How are the higher derivatives (jerk, jounce) of position with respect to time used in physics? [duplicate]

How long do electrons take to "decide" how to go through a circuit?

Why did scientists use a zinc-sulfide coated screen to detect the alpha, beta, and gamma radiation?

Is this a possible monopole setup, or will it cancel out? [duplicate]

Is heat from a stovetop, transfered through convection, radiation or conduction?

Is a black hole a 3D hole? And doesn't it pull into the 4th dimension?

Since electron clouds of different atoms repel each other, does that mean that touch is the feeling of electromagnetic repulsion? [duplicate]

How fast would you have to go to claim you saw the red light as green due to the Doppler Effect?

If I flex my arm, where is the "equal and opposite" reaction?

Can we have electronics with charge carriers OTHER than electrons?

If you brought a hollow one-inch cube of steel filled with air into space, would the air exert a pressure of 14.7 psi on the cube?

Is it possible to raise the voltage of a power source by lowering its current indefinitely (i.e. transformers)?

Quantum violation of Newton's Third Law? [closed]

How does this capillary-action setup not become a perpetual motion machine?

Is there any quantum experiments or effects that you can do at home? [duplicate]

What is the unit of information as defined by information theory?