User Georg

69 votes

Cooling a cup of coffee with help of a spoon

answered Feb 16, 2011 at 13:11

45 votes

If it was possible to dig a hole that went from one side of the Earth to the other...

answered Mar 21, 2011 at 11:25

17 votes

Accepted

Why does amount of protons define how matter is?

answered Mar 14, 2011 at 22:06

16 votes

Do my noodles cook quicker when the water is boiling or when it is just about to boil?

answered Jan 25, 2011 at 21:44

16 votes

Why is copper diamagnetic?

answered Mar 28, 2013 at 14:32

15 votes

Accepted

Why does the water in the toilet move around so much on stormy days?

answered Apr 14, 2011 at 14:04

14 votes

How does a particle of light reach the max speed of light?

answered Apr 6, 2011 at 10:12

14 votes

Why do car keys have longer range when held next to your head?

answered Feb 20, 2011 at 19:02

11 votes

Accepted

What happens to chemical compounds that include radioactive nuclei, when those decay?

answered Apr 5, 2011 at 11:03

11 votes

What happens if you try to freeze water in an water tight container

answered May 10, 2011 at 12:40

10 votes

Water pressure in free fall

answered Feb 5, 2011 at 14:55

9 votes

Accepted

Why can different batteries with the same voltage send different currents through the same object?

answered Apr 2, 2011 at 10:02

9 votes

Accepted

How do laser rangefinders work when the object surface is not perpendicular to the laser beam?

answered Jun 2, 2011 at 12:56

8 votes

Accepted

What is generating the hydrogen that has exploded in the Fukushima reactor?

answered Mar 15, 2011 at 14:51

7 votes

Accepted

What determines how much light is reflected and refracted?

answered Mar 12, 2011 at 16:16

7 votes

Accepted

Laser cutting/drilling of copper

answered Jan 17, 2011 at 15:55

7 votes

Accepted

The feeling of fuzz on the display surface of a Cathode Ray Tube Television

answered Aug 4, 2011 at 9:46

7 votes

Accepted

Shaping a wire such that a bead sliding on it has exactly isochronous oscillations

answered Aug 5, 2011 at 19:17

7 votes

How Earth communicates with Voyager I?

answered Aug 6, 2011 at 9:20

6 votes

Accepted

Is there any way to increase a rubber-bands lifetime?

answered Jul 16, 2011 at 10:29

6 votes

Why does boiling water in the microwave make a cup of tea go weird?

answered Aug 28, 2013 at 13:06

6 votes

Accepted

What's the name for taking pictures of air flow in a normal room?

answered Apr 18, 2011 at 21:29

6 votes

Accepted

Double slit experiment - how to see an electron going through a slit?

answered May 26, 2011 at 15:53

6 votes

Accepted

What is the source of high-frequency squeal in faulty CRT monitors and TV, and what is physics of generating this sound?

answered Mar 15, 2011 at 11:37

6 votes

Why does grinding steel create sparks but aluminium doesn't?

answered Jan 24, 2015 at 15:54

5 votes

Accepted

How can a single photon or electron create a small visible dot on a photosensitive plate?

answered Jan 23, 2015 at 15:29

5 votes

Accepted

Examples of circuitry using proton currents

answered Jan 25, 2011 at 4:15

5 votes

Accepted

Extended sound of thunder

answered May 30, 2011 at 8:41

5 votes

coherence length

answered Jul 27, 2011 at 13:07

4 votes

How fast does an ice cube melt in a microwave?

answered Jul 23, 2011 at 20:01

Stack Exchange Network

88 Answers

Cooling a cup of coffee with help of a spoon

If it was possible to dig a hole that went from one side of the Earth to the other...

Why does amount of protons define how matter is?

Do my noodles cook quicker when the water is boiling or when it is just about to boil?

Why is copper diamagnetic?

Why does the water in the toilet move around so much on stormy days?

How does a particle of light reach the max speed of light?

Why do car keys have longer range when held next to your head?

What happens to chemical compounds that include radioactive nuclei, when those decay?

What happens if you try to freeze water in an water tight container

Water pressure in free fall

Why can different batteries with the same voltage send different currents through the same object?

How do laser rangefinders work when the object surface is not perpendicular to the laser beam?

What is generating the hydrogen that has exploded in the Fukushima reactor?

What determines how much light is reflected and refracted?

Laser cutting/drilling of copper

The feeling of fuzz on the display surface of a Cathode Ray Tube Television

Shaping a wire such that a bead sliding on it has exactly isochronous oscillations

How Earth communicates with Voyager I?

Is there any way to increase a rubber-bands lifetime?

Why does boiling water in the microwave make a cup of tea go weird?

What's the name for taking pictures of air flow in a normal room?

Double slit experiment - how to see an electron going through a slit?

What is the source of high-frequency squeal in faulty CRT monitors and TV, and what is physics of generating this sound?

Why does grinding steel create sparks but aluminium doesn't?

How can a single photon or electron create a small visible dot on a photosensitive plate?

Examples of circuitry using proton currents

Extended sound of thunder

coherence length

How fast does an ice cube melt in a microwave?