141,032 reputation
9242395
bio website ratsauce.co.uk
location Chester, United Kingdom
age 54
visits member for 4 years, 5 months
seen 7 hours 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.


Mar
25
answered Sign convention for the Minkowski metric $\eta_{\mu\nu}$
Mar
25
answered Why does the Higgs field have less energy when it's non-zero than when it's zero?
Mar
25
comment Why does the Higgs field have less energy when it's non-zero than when it's zero?
I don't think this answers the question because it doesn't say why the VEV is not zero. The VEVs of all the other known bosonic fields are zero, so what is it about the Higgs that mkes it different?
Mar
25
comment Why doesn't the light get out?
You might also want to have look at If you shoot a light beam behind the event horizon of a black hole, what happens to the light? and for a more technical discussion Would the inside of a black hole be like a giant mirror?.
Mar
25
comment Why doesn't the light get out?
I thinm this is a duplicate of Speed of light in a gravitational field?. I won't flag it as such because that would immediately close your question, but I thnk you should have a read through my answer to the question I've linked.
Mar
25
reviewed Leave Closed Fusion - A List of Experimentally Achieved Beta Numbers in Magnetic Confinement
Mar
25
reviewed No Action Needed Which is a more effective cooling method?
Mar
25
reviewed Close Any suggestion of laser pointer for everyday life study of fluorescence?
Mar
25
reviewed Leave Open What is total force in this context?
Mar
25
reviewed Leave Open Lagrangians not of the form $T-U$
Mar
25
reviewed Leave Open What is a stochastic process in a physics context?
Mar
25
reviewed Close How do you determine the Lagrangian?
Mar
25
reviewed Close How to find an equation for $x$ in terms of $t$ for a particle falling under gravity with resistance given by $mkv^2$?
Mar
25
reviewed Leave Open Magnetic Field Along the Axis of the Current Ring - Alternative way to compute
Mar
25
comment Dimensional analysis explanation and teacher issues!
Hi Mark. You're basically asking us to write an article on dimensional analysis. A quick Google should find you many such articles so there seems little point in writing yet another here. It's impossible to comment on how fair your teacher is being since we don't know the details. However dimensional anaylsis is an important skill and even we real physicists use it as a routine part of our work. Your teacher is right to insist you master it.
Mar
24
awarded  Nice Answer
Mar
24
revised Is there a formula that gives the position of an object depending on the time, but which doesn't allow the object to surpass the speed of light?
Tweak Mathjax
Mar
24
reviewed Close Magnetic field due to sheet current
Mar
24
reviewed Leave Open Light absorption according to “Beer-Lambert” law
Mar
24
reviewed Leave Open relationship of number of standing waves with Temperature?