User joseph h

103 votes

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Why don't the Earth's oceans generate a magnetic field?

answered Jun 16, 2021 at 1:47

94 votes

What is the physics behind origami?

answered Jan 13, 2021 at 10:30

62 votes

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Why is the air inside an igloo warmer than its outside?

answered Jan 14, 2021 at 8:14

49 votes

Why does everyone say that the faster you move through space, the slower you move through time, when that's not the case?

answered Nov 2, 2021 at 5:12

45 votes

How seriously can we take the success of the Standard Model when it has so many input parameters?

answered Sep 25, 2021 at 4:22

39 votes

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Why don't opaque objects reflect light?

answered Dec 17, 2020 at 8:09

38 votes

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Why do "relativistic effects" come into play, when dealing with superheavy atoms?

answered Jun 17, 2021 at 1:54

37 votes

Why are the edges of a broken glass almost opaque?

answered Jan 14, 2021 at 11:04

36 votes

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What did I just photograph? (rainbow way out of place)

answered Jun 8, 2021 at 23:28

32 votes

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Could an infinite number of photons fit into a finite space?

answered Oct 17, 2020 at 0:10

30 votes

Can nothing other than light have speed independent of source?

answered Aug 8, 2021 at 8:12

29 votes

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Do photons slow down this much in the Sun's gravitational field?

answered Nov 19, 2020 at 3:58

29 votes

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How do batteries lose capacity in winter?

answered May 4 at 1:25

27 votes

Why is everything not invisible if 99% space is empty?

answered Jun 27, 2021 at 8:17

27 votes

Why doesn't a hot air balloon burst even if we keep heating the air in balloon for a long time , shouldn't the air pressure become so high to resist?

answered Nov 2, 2021 at 6:28

25 votes

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Is there a theoretical limit for energy density?

answered Jun 8, 2022 at 1:18

22 votes

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How do mercury tubes keep the period of a pendulum clock constant with temperature?

answered Jul 30, 2021 at 3:48

20 votes

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Why the charge of the proton does not transfer to the neutron in the nuclei?

answered Feb 22, 2021 at 5:22

20 votes

Why is the work done non-zero even though it's along a closed path?

answered Apr 6 at 2:02

19 votes

How can an airconditioning machine exist?

answered Jun 14 at 8:26

19 votes

Motivation for the definition of angular momentum?

answered Apr 9, 2022 at 23:07

18 votes

In the theory of special relativity speed is relative so who decides which observer’s time moves slower?

answered Apr 25, 2021 at 4:54

18 votes

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Is the energy of an orbital dependent on temperature?

answered Dec 3, 2020 at 5:28

18 votes

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Can a person on the equator jump up higher into the air at sunset than at sunrise?

answered Jul 4, 2021 at 2:50

18 votes

Can proton disintegrate into fundamental particles on its own when its speed approaches that of light?

answered Aug 13, 2021 at 4:47

18 votes

Is a 6-quark particle viable?

answered Aug 27, 2021 at 2:22

17 votes

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How did they know the radius of the earth in ancient times?

answered Apr 9, 2022 at 1:33

17 votes

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I Do Not Understand a Textbook Example: Calculating Voltage Across a Resistor

answered Oct 21, 2021 at 2:18

16 votes

Why is it said that antiparticles are a result of combining SR with Quantum theory?

answered May 17, 2021 at 8:18

16 votes

Meaning of negative time

answered Mar 10, 2021 at 2:44

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719 Answers

Why don't the Earth's oceans generate a magnetic field?

What is the physics behind origami?

Why is the air inside an igloo warmer than its outside?

Why does everyone say that the faster you move through space, the slower you move through time, when that's not the case?

How seriously can we take the success of the Standard Model when it has so many input parameters?

Why don't opaque objects reflect light?

Why do "relativistic effects" come into play, when dealing with superheavy atoms?

Why are the edges of a broken glass almost opaque?

What did I just photograph? (rainbow way out of place)

Could an infinite number of photons fit into a finite space?

Can nothing other than light have speed independent of source?

Do photons slow down this much in the Sun's gravitational field?

How do batteries lose capacity in winter?

Why is everything not invisible if 99% space is empty?

Why doesn't a hot air balloon burst even if we keep heating the air in balloon for a long time , shouldn't the air pressure become so high to resist?

Is there a theoretical limit for energy density?

How do mercury tubes keep the period of a pendulum clock constant with temperature?

Why the charge of the proton does not transfer to the neutron in the nuclei?

Why is the work done non-zero even though it's along a closed path?

How can an airconditioning machine exist?

Motivation for the definition of angular momentum?

In the theory of special relativity speed is relative so who decides which observer’s time moves slower?

Is the energy of an orbital dependent on temperature?

Can a person on the equator jump up higher into the air at sunset than at sunrise?

Can proton disintegrate into fundamental particles on its own when its speed approaches that of light?

Is a 6-quark particle viable?

How did they know the radius of the earth in ancient times?

I Do Not Understand a Textbook Example: Calculating Voltage Across a Resistor

Why is it said that antiparticles are a result of combining SR with Quantum theory?

Meaning of negative time