Ilmari Karonen's user avatar
Ilmari Karonen's user avatar
Ilmari Karonen's user avatar
Ilmari Karonen
  • Member for 12 years, 7 months
  • Last seen this week
544 votes
Accepted

How does light bend around my finger tip?

170 votes

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

85 votes
Accepted

Why do chimneys have these spiral "wings"?

75 votes
Accepted

How does a half-life work?

61 votes

How to escape the center of a room without gravity?

44 votes
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Why does medium not affect the frequency of sound?

41 votes

Why do travelling waves continue after amplitude sum = 0?

35 votes
Accepted

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

35 votes
Accepted

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

29 votes
Accepted

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

28 votes

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

28 votes

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

26 votes

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

22 votes
Accepted

Impact location that created the moon

17 votes

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

15 votes

Why is a hard sphere gas correlated?

12 votes
Accepted

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

12 votes

Would you feel Centrifugal Force without Friction?

11 votes
Accepted

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

11 votes
Accepted

Two planets in same orbit - not planets?

11 votes
Accepted

Sauna thermodynamics

10 votes

How to measure resistance of a piece of wire?

10 votes

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

9 votes
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Symmetry in resistor circuits

8 votes

Does the electromagnetic wave have a lateral extension?

8 votes

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

7 votes
Accepted

Newtonian mechanics: massless particles

7 votes
Accepted

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

7 votes

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

6 votes
Accepted

Force required to drive car