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Vilx-
  • Member for 11 years, 1 month
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168 votes
21 answers
12k views

How do you make more precise instruments while only using less precise instruments?

55 votes
4 answers
7k views

How strong is the force of ice expanding when freezing?

34 votes
3 answers
4k views

How does a river freeze when the water keeps moving?

11 votes
3 answers
4k views

Is it possible to see satellites with the naked eye?

11 votes
5 answers
25k views

If a black body is a perfect absorber, why does it emit anything?

8 votes
2 answers
293 views

Why does nobody ever consider the possibility that the universe is not smooth?

6 votes
1 answer
9k views

What makes matter "solid"?

3 votes
2 answers
617 views

How was it determined that the speed of light in vacuum is a constant?

2 votes
1 answer
397 views

Practical physics: where does this current come from?

1 vote
1 answer
87 views

Why is there energy being spent / work being done in a static system?

1 vote
2 answers
226 views

Why doesn't Earth explode from the great pressure inside?

1 vote
3 answers
267 views

Why would this evaporation-based perpetual motion machine not work?

-1 votes
1 answer
44 views

Radiation shield with moving electrons - where would this idea fail?