Physics
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Pulsar
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All Questions Answers
Score Newest
answer
100
Can space expand with unlimited speed?
May 8, 2013
answer
47
What is the speed of the fastest moving body in our solar system?
Nov 2, 2014
answer
42
Why are leap seconds needed so often?
Apr 21, 2018
answer
40
Why does a cork float to the side of a glass?
Jul 16, 2013
answer
37
Dumbed-down explanation how scientists know the number of atoms in the universe?
Jun 17, 2013
answer
32
Where is radiation density in the Planck 2013 results?
Jan 18, 2014
answer
32
According to Hubble's Law, how can the expansion of the Universe be accelerating?
Jun 19, 2013
answer
30
Kepler's third law doesn't give earth's orbital period! Why?
Apr 10, 2014
answer
29
What is the theoretical limit for farthest we can see back in time and distance?
Jun 10, 2013
answer
28
The difference between comoving and proper distances in defining the observable universe
Apr 21, 2018
Top Meta posts
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Our best questions come from non-expert users
13
Minor edits should not make questions 'active'
8
Should pure math questions be on topic?
8
Have we lost the necessary critical mass of professional physicists?
3
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Has George R. R. Martin ever officially stated that the shape of Westeros was based on the United Kingdom?
12
Did Isaac Newton burn Robert Hooke's picture?
7
Proving $\lim \limits_{n\to +\infty } \left(1+\frac{x}{n}\right)^n=\text{e}^x$.
6
Is there an astronomical reason behind the order for the names of days of the week?
5
Equivalent definitions of Hermite polynomials

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