User Retarded Potential

58 votes

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How does faster than light travel violate causality?

answered Feb 17, 2013 at 21:55

19 votes

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What is the exact gravitational force between two masses including relativistic effects?

answered Dec 29, 2012 at 20:27

7 votes

What is a clock?

answered Feb 21, 2013 at 23:00

5 votes

Does the mathematics of physics require impure set theory?

answered Jan 5, 2013 at 21:19

5 votes

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Setting up a local-coordinate system in space-time using only a single clock and light beams

answered Feb 1, 2013 at 20:13

4 votes

Why do clocks measure arc-length?

answered Feb 7, 2013 at 21:50

4 votes

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What happens to this potential energy?

answered Mar 13, 2013 at 1:21

3 votes

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Computability of physics

answered Mar 13, 2013 at 22:08

3 votes

Double slit experiments - basic pondering

answered Mar 20, 2013 at 20:43

3 votes

If time slows down when you move faster, does this give you an "effective speed" different from your proper speed?

answered Feb 14, 2013 at 18:19

3 votes

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Relaxation time for deviations from spherical shape of a black hole's event horizon (and waves)

answered Feb 5, 2013 at 21:53

3 votes

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Surface integral of Poynting vector around static sources

answered Feb 16, 2013 at 18:55

3 votes

Does the "Andromeda Paradox" (Rietdijk–Putnam-Penrose) imply a completely deterministic universe?

answered Jan 17, 2013 at 3:36

3 votes

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Are the intersections of past and future light cones spacelike?

answered Nov 23, 2012 at 0:01

3 votes

Is equivalent resistance always lower if we add a resistor to a passive electronic circuit?

answered Dec 13, 2012 at 21:23

2 votes

List of physics paradoxes

answered Jan 14, 2013 at 22:42

2 votes

Where inside a large uniformly dense, symmetrical sphere would its gravity toward the center be the strongest?

answered Jan 21, 2013 at 20:04

1 vote

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Why is there no aberation of a static electric field, but there is aberation for EM radiation?

answered Feb 1, 2013 at 23:46

1 vote

origin of magnetic field in a permanent magnet

answered Feb 14, 2013 at 20:31

1 vote

Gravity from a singularity as distance approaches zero

answered Jan 15, 2013 at 17:51

1 vote

Gravitation force- Attraction and repulsion

answered Dec 24, 2012 at 2:50

1 vote

Changing the Half-Life of Radioactive Substances

answered Dec 29, 2012 at 19:21

1 vote

Questions about the speed of light and the extent of the universe

answered Dec 11, 2012 at 7:17

1 vote

Metric to describe an expanding spacetime from coordinates reflecting the perspective of a local observer

answered Oct 4, 2016 at 22:09

1 vote

Modeling a two-mass, spring, damper system

answered Mar 8, 2013 at 21:22

0 votes

The Four-Clock Special Relativity Conundrum

answered Jan 4, 2013 at 23:12

Stack Exchange Network

26 Answers

How does faster than light travel violate causality?

What is the exact gravitational force between two masses including relativistic effects?

What is a clock?

Does the mathematics of physics require impure set theory?

Setting up a local-coordinate system in space-time using only a single clock and light beams

Why do clocks measure arc-length?

What happens to this potential energy?

Computability of physics

Double slit experiments - basic pondering

If time slows down when you move faster, does this give you an "effective speed" different from your proper speed?

Relaxation time for deviations from spherical shape of a black hole's event horizon (and waves)

Surface integral of Poynting vector around static sources

Does the "Andromeda Paradox" (Rietdijk–Putnam-Penrose) imply a completely deterministic universe?

Are the intersections of past and future light cones spacelike?

Is equivalent resistance always lower if we add a resistor to a passive electronic circuit?

List of physics paradoxes

Where inside a large uniformly dense, symmetrical sphere would its gravity toward the center be the strongest?

Why is there no aberation of a static electric field, but there is aberation for EM radiation?

origin of magnetic field in a permanent magnet

Gravity from a singularity as distance approaches zero

Gravitation force- Attraction and repulsion

Changing the Half-Life of Radioactive Substances

Questions about the speed of light and the extent of the universe

Metric to describe an expanding spacetime from coordinates reflecting the perspective of a local observer

Modeling a two-mass, spring, damper system

The Four-Clock Special Relativity Conundrum