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Mathew
  • Member for 5 years, 10 months
  • Last seen more than a month ago
91 votes
10 answers
15k views

Why bother buying efficient lights if you are already heating your house?

26 votes
5 answers
4k views

How do we know that energy and momentum are conserved?

4 votes
2 answers
161 views

Is the formula $∆U = nC_v ∆T$ true for all processes?

2 votes
1 answer
3k views

Proof of length contraction

2 votes
1 answer
155 views

Why aren't Maxwell's equations overdetermined? [duplicate]

2 votes
2 answers
148 views

Time dilation due to gravitation of observers in circular orbit of a point mass

1 vote
2 answers
43 views

Best latitude to harness solar power during June?

1 vote
1 answer
100 views

Using Hawking radiation to turn matter into antimatter and vice-versa

1 vote
1 answer
56 views

Upper bound on frequency of photons generated by an x-ray tube

0 votes
2 answers
90 views

Is there a form of radiation that is blocked by magnetic fields but not by matter?

0 votes
1 answer
34 views

Photon absorbtion in water as a function of wave length

0 votes
1 answer
164 views

Energy gained from eating a bagel [closed]

0 votes
2 answers
2k views

WIFI frequency and amplitude

-1 votes
1 answer
26 views

Maximum solar power on moon [closed]