User Ilmari Karonen

564 votes

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How does light bend around my finger tip?

answered May 4, 2014 at 23:41

170 votes

Why can't we see images reflected on a piece of paper?

answered Nov 27, 2018 at 17:37

85 votes

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Why do chimneys have these spiral "wings"?

answered Aug 27, 2013 at 19:26

75 votes

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How does a half-life work?

answered Mar 6, 2014 at 8:46

61 votes

How to escape the center of a room without gravity?

answered Aug 22, 2016 at 13:24

46 votes

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Why does medium not affect the frequency of sound?

answered Jul 12, 2015 at 8:22

41 votes

Why do travelling waves continue after amplitude sum = 0?

answered Apr 3, 2016 at 18:30

35 votes

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Could a hard drive actually have been erased as described in Cryptonomicon?

answered May 1, 2014 at 17:27

35 votes

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Is Feynman's explanation of how the moon stays in orbit wrong?

answered Mar 31, 2013 at 2:37

29 votes

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Are the air particles in today's wind on earth (more or less) the same as the air 2/3 billion years ago?

answered Sep 9, 2013 at 10:59

29 votes

What does Einstein mean by “mollusc” in chapter 29 of His book Relativity?

answered Aug 31, 2021 at 5:10

29 votes

Why are there so many objects perfectly orbiting each other? Isn't it infinitely more likely that two random objects crash/fly apart?

answered Nov 23, 2023 at 19:12

28 votes

How to interpret the units of the dot or cross product of two vectors?

answered Mar 27, 2016 at 23:48

24 votes

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Why would two different sized bikes not arrive at the same time starting from rest on the same slope?

answered Apr 24 at 8:55

22 votes

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Impact location that created the moon

answered Mar 15, 2012 at 0:03

17 votes

Do the probability density and the probability current density have a unit

answered Nov 5, 2014 at 21:12

15 votes

Why is a hard sphere gas correlated?

answered Aug 29, 2013 at 11:14

13 votes

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Does the unit of a quantity change if you take square root of it?

answered Apr 30, 2013 at 20:27

12 votes

Would you feel Centrifugal Force without Friction?

answered Oct 13, 2016 at 19:19

11 votes

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What happens when the centripetal force is equal and opposite to the centrifugal force?

answered Mar 19, 2019 at 11:06

11 votes

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Sauna thermodynamics

answered Mar 18, 2012 at 22:50

11 votes

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Two planets in same orbit - not planets?

answered Apr 21, 2013 at 18:23

10 votes

Why are expressions such as $\operatorname{ln}T$ used in thermodynamics where $T$ is not dimensionless?

answered Jan 2, 2013 at 5:37

10 votes

How to measure resistance of a piece of wire?

answered Dec 16, 2013 at 15:48

9 votes

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Symmetry in resistor circuits

answered Jul 23, 2013 at 14:26

8 votes

Does the electromagnetic wave have a lateral extension?

answered Mar 3, 2021 at 16:48

8 votes

Why can’t you feel the collision of each air molecule?

answered Jun 16, 2021 at 16:15

7 votes

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Newtonian mechanics: massless particles

answered Jun 23, 2020 at 11:16

7 votes

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How can we see the moon while it's between the Earth and the Sun?

answered Nov 23, 2015 at 9:09

7 votes

Why does tossing a coin in a train and on a train differ?

answered Jan 18, 2014 at 11:44

Stack Exchange Network

72 Answers

How does light bend around my finger tip?

Why can't we see images reflected on a piece of paper?

Why do chimneys have these spiral "wings"?

How does a half-life work?

How to escape the center of a room without gravity?

Why does medium not affect the frequency of sound?

Why do travelling waves continue after amplitude sum = 0?

Could a hard drive actually have been erased as described in Cryptonomicon?

Is Feynman's explanation of how the moon stays in orbit wrong?

Are the air particles in today's wind on earth (more or less) the same as the air 2/3 billion years ago?

What does Einstein mean by “mollusc” in chapter 29 of His book Relativity?

Why are there so many objects perfectly orbiting each other? Isn't it infinitely more likely that two random objects crash/fly apart?

How to interpret the units of the dot or cross product of two vectors?

Why would two different sized bikes not arrive at the same time starting from rest on the same slope?

Impact location that created the moon

Do the probability density and the probability current density have a unit

Why is a hard sphere gas correlated?

Does the unit of a quantity change if you take square root of it?

Would you feel Centrifugal Force without Friction?

What happens when the centripetal force is equal and opposite to the centrifugal force?

Sauna thermodynamics

Two planets in same orbit - not planets?

Why are expressions such as $\operatorname{ln}T$ used in thermodynamics where $T$ is not dimensionless?

How to measure resistance of a piece of wire?

Symmetry in resistor circuits

Does the electromagnetic wave have a lateral extension?

Why can’t you feel the collision of each air molecule?

Newtonian mechanics: massless particles

How can we see the moon while it's between the Earth and the Sun?

Why does tossing a coin in a train and on a train differ?