User Árpád Szendrei

22 votes

Accepted

What actually is white light?

answered Jan 8, 2021 at 22:02

19 votes

Why don't opaque objects reflect light?

answered Dec 18, 2020 at 16:56

18 votes

Do colors differ in terms of speed?

answered Dec 9, 2019 at 1:37

16 votes

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Is the nucleus smaller than the electron?

answered Nov 3, 2020 at 17:45

15 votes

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Can data be transferred using the strong force?

answered Jan 13, 2020 at 0:33

13 votes

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Only sea water appears blue in color, why this is not happening in river water?

answered Aug 16, 2018 at 17:51

11 votes

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Can strong interaction be repulsive?

answered Jan 9, 2020 at 0:08

10 votes

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Are quasi-particles really particles?

answered May 18, 2019 at 22:46

10 votes

Why does a rubber band become a lighter color when stretched?

answered Apr 17, 2020 at 22:01

9 votes

If there is no absolute time, how can we say the Big Bang was 13.8 billion years ago?

answered Nov 29, 2019 at 2:53

9 votes

Accepted

Does a massive spherical shell expand the time inside itself?

answered Jul 1, 2018 at 0:23

8 votes

Why Speed of light in vacuum remains constant?

answered Jan 14, 2020 at 3:19

8 votes

Why do photons follow specific path after reflection from a mirror surface if they can be emitted in any direction by electrons of mirror surface?

answered Mar 30, 2020 at 18:38

8 votes

What happens if a magnetar collapses into a black hole?

answered Sep 5, 2020 at 22:00

7 votes

Accepted

Why is the bottom of the Mariana Trench not frozen?

answered Feb 5, 2020 at 22:13

7 votes

Are colors grounded in physics or are they a matter of human perception?

answered May 24, 2020 at 23:00

7 votes

Why doesn't water boil in the oven?

answered Jun 9, 2020 at 16:07

7 votes

Do photons actually slow down in a medium, or is the speed decrease just apparent?

answered Jan 14, 2020 at 2:30

7 votes

Would time freeze if you could travel at the speed of light?

answered Oct 27, 2016 at 18:02

7 votes

Accepted

How do we know that bending of light around stars is due to bending of space-time and not diffraction?

answered Apr 27, 2018 at 10:10

7 votes

Accepted

If Planck length can't even be seen by any microscope why is it even a unit of measurement

answered Nov 24, 2020 at 17:10

7 votes

Is it possible that antimatter has positive inertial mass but negative gravitational mass?

answered Oct 28, 2020 at 16:17

7 votes

Why should a clock be "accurate"?

answered Feb 22, 2022 at 22:51

6 votes

What does the Chern number physically represent?

answered Jun 4, 2018 at 17:17

6 votes

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What is the difference between reflection and emission?

answered Oct 1, 2018 at 0:19

6 votes

Accepted

Einstein's quantum elevator in a vacuum

answered Nov 20, 2019 at 17:31

6 votes

Why does transition from one electron shell to another shell always produce massless photon?

answered Sep 30, 2019 at 17:16

6 votes

Why doesn't Venus have a magnetic field? How does the speed of rotation affect the magnetic field of a planet?

answered Jul 19, 2019 at 11:36

6 votes

Energy conservation in reflection of light from a perfect mirror

answered Mar 28, 2020 at 22:12

6 votes

Accepted

Why don't photons interfere/interact with one another, as common mechanical waves would?

answered Oct 26, 2020 at 20:56

Stack Exchange Network

811 Answers

What actually is white light?

Why don't opaque objects reflect light?

Do colors differ in terms of speed?

Is the nucleus smaller than the electron?

Can data be transferred using the strong force?

Only sea water appears blue in color, why this is not happening in river water?

Can strong interaction be repulsive?

Are quasi-particles really particles?

Why does a rubber band become a lighter color when stretched?

If there is no absolute time, how can we say the Big Bang was 13.8 billion years ago?

Does a massive spherical shell expand the time inside itself?

Why Speed of light in vacuum remains constant?

Why do photons follow specific path after reflection from a mirror surface if they can be emitted in any direction by electrons of mirror surface?

What happens if a magnetar collapses into a black hole?

Why is the bottom of the Mariana Trench not frozen?

Are colors grounded in physics or are they a matter of human perception?

Why doesn't water boil in the oven?

Do photons actually slow down in a medium, or is the speed decrease just apparent?

Would time freeze if you could travel at the speed of light?

How do we know that bending of light around stars is due to bending of space-time and not diffraction?

If Planck length can't even be seen by any microscope why is it even a unit of measurement

Is it possible that antimatter has positive inertial mass but negative gravitational mass?

Why should a clock be "accurate"?

What does the Chern number physically represent?

What is the difference between reflection and emission?

Einstein's quantum elevator in a vacuum

Why does transition from one electron shell to another shell always produce massless photon?

Why doesn't Venus have a magnetic field? How does the speed of rotation affect the magnetic field of a planet?

Energy conservation in reflection of light from a perfect mirror

Why don't photons interfere/interact with one another, as common mechanical waves would?