140,719 reputation
9242395
bio website ratsauce.co.uk
location Chester, United Kingdom
age 54
visits member for 4 years, 5 months
seen 43 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.


37m
comment Buying books that are out of print
I'm voting to close this question as off-topic because it's about buying books not physics
37m
reviewed Leave Closed Moment of inertia of a connecting rod in a crank-slider mechanism
37m
reviewed Close Spherical representation of field operators of scalar field
38m
reviewed Delete Calculating the coefficient of thermal expansion in liquid
39m
reviewed No Action Needed Radiation from home heaters
39m
reviewed Reviewed Is there any evidence against the Cosmological Principle?
40m
reviewed No Action Needed Can the Betz limit be overcome?
40m
reviewed Leave Open On the Lorentz Group representation
40m
reviewed Leave Open Fourier transformation and commutators
40m
reviewed Leave Open Proving the speed of light to be an invariant and the “ultimate” speed limit using Minkowski diagrams
42m
reviewed Leave Open What happens to sound at speeds greater than mach 1?
44m
reviewed Leave Open Could electromagnetic charge curve something like spacetime in analogy with general relativity?
45m
reviewed Close Is there a physical interpretation of the alternating property?
47m
comment Is there any evidence against the Cosmological Principle?
Hi Lance. A good answer would in effect be a review article and I think that makes the question too broad. I found an interesting paper on the Arxiv that includes a literature survey. This would be a good start. A brief answer is that there is some tantalising evidence that the universe may not be as homogeneous and isotropic as we have assumed, but nothing concrete yet.
14h
reviewed No Action Needed Can anyone explain me how time can bend according to Einstein in simple way?
14h
reviewed No Action Needed How to calculate the inertia tensors of an irregular polygonal right prism?
14h
reviewed Leave Open Cosmological constants
14h
comment Doesn't dating the universe violate the concept of spacetime's inseparability?
@JimsBond: actually I've just spotted that the Wikipedia article I linked uses the term "comoving time". So yar boo sucks!!! :-)
16h
comment 't Hooft–Polyakov and Dirac monopoles, instantons and solitons
There are loads of articles on these subjects out there in Googlespace. I think you should read around the subjects a bit before posting here. If there are some aspects that you don't understand please come back to us and post a question explaining what you do understand and what you don't.
16h
comment Throwing the object around the Earth
Hi and welcome to the Physics SE! Please note that this is not a homework help site. Please see this Meta post on asking homework questions and this Meta post for "check my work" problems.