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Astronomy
John Duffield's user avatar
John Duffield's user avatar
John Duffield's user avatar
John Duffield
  • Member for 8 years, 10 months
  • Last seen more than a month ago
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About

I'm an IT guy with a deep interest in physics. I've done a lot of research, particularly into historical papers. See my physics detective website for examples.

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Top posts
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answer
85
Does the Milky Way move through space?
Sep 12, 2017
question
12
Is there a better explanation of Hawking radiation?
Mar 22, 2017
answer
11
Is there a maximum size for a black hole?
Dec 27, 2017
answer
9
So where are these measurements of galaxies moving faster than light?
Apr 18, 2018
answer
7
Detecting habitable planets
Apr 18, 2018
question
7
What effect do aircraft have on night-time visibility?
Jul 28, 2020
answer
7
A camera and time dilation?
Dec 29, 2015
answer
6
On the cosmological principle
Jan 12, 2016
question
5
Do falling bodies ever slow down?
Jan 31, 2019
answer
4
What is the future of our universe?
Jan 12, 2016
Top network posts
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244
What exactly is a photon?
179
Is quantum computing just pie in the sky?
103
Does a gun exert enough gravity on the bullet it fired to stop it?
36
Is there any hard scientific evidence that the alpha particle is tetrahedral?
34
Where is the evidence that the electron is pointlike?