117,255 reputation
5183313
bio website ratsauce.co.uk
location Chester, United Kingdom
age 53
visits member for 3 years, 11 months
seen 27 mins ago

Semi retired old time computer nerd who started programming on a Commodore Pet.

Since I'm also active in the Physics forum I should add that I started as a theoretical chemist, moved into solid state photochemistry and finally worked in industry as a colloid scientist. I only became a full time computer nerd in 1997.


Jul
6
reviewed No Action Needed How is the logarithmic correction to the entropy of a non extremal black hole derived?
Jul
6
reviewed Leave Open Why are some surfaces slippery?
Jul
6
reviewed Leave Open Question about an integration by parts in Feynman's Quantum Mechanics
Jul
6
comment About mass defect
@user52153: I've updated my answer to go through the calculation
Jul
6
revised About mass defect
Respond to comment
Jul
5
reviewed Close $\theta '' = \frac{a}{R}$?
Jul
5
reviewed Reject A sonar continuously emits x(t), a general but known waveform and is reflected by a target. hypothetical question
Jul
5
comment special relativity from minkowsky space-time
I can see this comment thread turning into a discussion, and the moderators will swoop like a wolf upon the fold. But, while the moderators aren't looking, I don't think you truly understand SR until you understand Lorentz invariance. And once you understand Lorentz invariance everything else follows from it.
Jul
5
comment special relativity from minkowsky space-time
Sadly (because I agree with the views expressed) I've voted to close on the grounds this is a matter of opinion. I would start teaching undergrads Minkowski geometry from the outset and do away with the silly diagrams of light clocks. But then that's just my opinion :-)
Jul
5
reviewed No Action Needed Measuring Atomic Radius of a Noble Gas
Jul
5
answered Why do batteries become weaker
Jul
5
answered Seeing one's back on the event horizon
Jul
5
answered Black holes and Time Dilation at the horizon
Jul
5
reviewed Approve Why do batteries become weaker
Jul
5
awarded  Guru
Jul
5
reviewed Close Hydrogen ionization energy
Jul
5
reviewed Close Eigenenergies and eigenkets given the Hamiltonian
Jul
5
reviewed Leave Open Tensors in special relativity
Jul
5
awarded  reference-frames
Jul
4
reviewed Approve Did “big bang” radiate light?