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Gert
  • Member for 6 years, 11 months
  • Last seen this week
  • United Kingdom
104 votes
Accepted

How are water vapors not visible?

67 votes
Accepted

Why does wet hair keep its shape when it dries?

66 votes
Accepted

Gas pipes - why does gas burn "outwards?"

66 votes

Why does pressure in a thermos increase after shaking up hot water and soap?

48 votes
Accepted

Why does a ping pong ball bounce higher when it is dropped together with a cup of water?

45 votes

How did my candle wax crawl up the sides of the jar?

44 votes
Accepted

How does defrosting your freezer save energy?

39 votes
Accepted

Why is mist gray but water clear?

34 votes
Accepted

Why doesn't a spinning object in the air fall?

31 votes
Accepted

Why does water feel cooler than air?

31 votes

Do nuclei emit photons?

27 votes

Will something accelerate forever if a constant force is applied to it on a frictionless surface? If so how?

26 votes

What keeps the cookie in my coffee from moving when I rotate the cup?

25 votes
Accepted

Does fluid speed affect liquid cooling?

25 votes
Accepted

How is it possible that combustion of coal releases similar energy as TNT explosion while intuitively we would not expect that?

23 votes
Accepted

The process of burning and increasing weight

22 votes
Accepted

How can fast moving particles gain energy from slow moving ones?

21 votes

Why is the simple harmonic motion idealization inaccurate?

21 votes

What will happen to a ball kept on a frictionless inclined plane?

19 votes

Why not dilute radioactive waste?

18 votes
Accepted

Shape of water in rotating bucket

18 votes

Is there experimental verification of the s, p, d, f orbital shapes?

18 votes
Accepted

What is more efficient in carrying energy: Longitudinal waves or transverse waves?

16 votes

Why are the harmonics of a piano tone not multiples of the base frequency?

16 votes

Why does a metal block make a shrill sound but not a wooden block upon hammering?

16 votes

In a microwave oven, why do smaller portions heat up faster?

16 votes

Why does canola oil heat up in the microwave?

15 votes

How does the center of mass move forward on a rocking chair?

14 votes
Accepted

What happens to the units when squaring a variable?

13 votes

Burning Fuels and Producing Water

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