User Rex Kerr

52 votes

Cooling a cup of coffee with help of a spoon

answered Feb 16, 2011 at 15:25

48 votes

What are the mechanics by which Time Dilation and Length Contraction occur?

answered Oct 13, 2011 at 19:15

24 votes

Does juggling balls reduce the total weight of the juggler and balls?

answered Sep 12, 2012 at 5:51

18 votes

Accepted

Is Melancholia's orbit impossible?

answered Sep 25, 2011 at 13:28

13 votes

Why is there a size limitation on animals?

answered Jul 29, 2013 at 19:36

8 votes

Accepted

Is Uranium renewable, or will this science fiction scenario become reality?

answered May 3, 2012 at 22:37

5 votes

On a frictionless table, what is the angle at which a cue ball should hit another ball for it to go in?

answered Nov 7, 2011 at 6:43

5 votes

Why doesn't visible light generate sparks in aluminum foil when microwaves do?

answered Aug 26, 2013 at 1:58

5 votes

Could Legolas actually see that far?

answered Jul 4, 2014 at 19:57

4 votes

Accepted

Does the speed of sand flow in a hourglass depend on a height of a sand column above the hourglass neck?

answered Oct 17, 2011 at 17:34

4 votes

Would this pump water up? and if so, how far?

answered Aug 25, 2013 at 3:48

3 votes

Ultrafast Lasers

answered Aug 3, 2013 at 7:21

3 votes

Why doesn't my house get misty?

answered Jul 8, 2013 at 20:41

3 votes

Accepted

Could a people do all sort of gymnastics movement in vacuum space?

answered May 3, 2012 at 22:33

3 votes

How are we able to view an object in a room with bulb..?

answered Oct 8, 2011 at 18:35

3 votes

Accepted

How to set up a very simple experiment in optics?

answered Oct 8, 2011 at 18:43

3 votes

Accepted

Does white phosphorous burn in ammonia?

answered Sep 25, 2011 at 4:26

2 votes

Accepted

Making pink noise (1/f) using list of frequencies

answered Jul 22, 2013 at 21:49

1 vote

What's the best strategy to fully fill the fridge with beer bottles and have them all cooled?

answered Aug 3, 2013 at 8:11

0 votes

Falling chain with friction

answered Jul 22, 2013 at 21:56

Stack Exchange Network

20 Answers

Cooling a cup of coffee with help of a spoon

What are the mechanics by which Time Dilation and Length Contraction occur?

Does juggling balls reduce the total weight of the juggler and balls?

Is Melancholia's orbit impossible?

Why is there a size limitation on animals?

Is Uranium renewable, or will this science fiction scenario become reality?

On a frictionless table, what is the angle at which a cue ball should hit another ball for it to go in?

Why doesn't visible light generate sparks in aluminum foil when microwaves do?

Could Legolas actually see that far?

Does the speed of sand flow in a hourglass depend on a height of a sand column above the hourglass neck?

Would this pump water up? and if so, how far?

Ultrafast Lasers

Why doesn't my house get misty?

Could a people do all sort of gymnastics movement in vacuum space?

How are we able to view an object in a room with bulb..?

How to set up a very simple experiment in optics?

Does white phosphorous burn in ammonia?

Making pink noise (1/f) using list of frequencies

What's the best strategy to fully fill the fridge with beer bottles and have them all cooled?

Falling chain with friction