98,986 reputation
4145255
bio website ratsauce.co.uk
location Chester, United Kingdom
age 53
visits member for 3 years, 7 months
seen 23 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.


May
2
answered Violating Cosmic Censorship
May
2
comment Nuclear waste reclamation
Indeed, an old school friend of mine used to work for the company that reprocesses fuel in the UK.
May
2
revised Does water have surface tension in a vacuum?
Typo
May
2
reviewed No Action Needed Snowmaking in the tropics - an estimate of water evaporation
May
2
comment Kinematics and Motion
@user45332: your question was answered, in some detail, in the question Number of planks required to stop the bullet
May
2
revised Relation between impact parameter and distance of closest approach of a light ray in Schwarzschild Geodesics
Correct typo
May
2
answered Need explanation for a sketch of various spacetime dimensions
May
2
reviewed No Action Needed Need explanation for a sketch of various spacetime dimensions
May
2
comment Find the exact angle as a function of time for a rod that swings on a frictionless axle
Your system is a rigid rod pendulum, and it's an anharmonic oscillator. In general there is no closed form solution for anharmonic oscillators, and there isn't in this case.
May
2
reviewed Leave Open Moment of Inertia of a sector of a circle
May
2
answered Relation between impact parameter and distance of closest approach of a light ray in Schwarzschild Geodesics
May
1
comment are sub-atomic particles really particles or mere concepts in our minds?
This question appears to be off-topic because it is about philosophy not physics
May
1
comment Is a magnetic field just a moving charge?
@Benjohn: I wouldn't pay too much attention to the down vote, there are some miserable beggars lurking on this site (though most of us are quite nice - I think :-). Have a +1 from me to counteract it, anyone who is willing to learn electrodynamics needs encouragement!
May
1
comment Is a magnetic field just a moving charge?
The problem is that you can't understand magnetic fields without understand Maxwell's equations - at least in principle if not in all their gory detail. You say magnetism is a discrete concept but it isn't. An electromagnetic field can appear as an electric or magnetic field depending on your frame of reference. For the small investment required I would buy the book and have a quick scan through skipping the maths. That will at least give you a starting point.
May
1
comment Is a magnetic field just a moving charge?
I found A Student's Guide to Maxwell's Equations to be a good introductory book.
May
1
comment How do the single photon energy and em-signal energy correlate?
@static: I suspect this question will end up being closed as a duplicate. I would leave the question where it is. You've got an upvote and +5 reputation for it and deleting the question will delete the upvote and +5 reputation as well.
May
1
reviewed Reject suggested edit on Addition of Angular Momementa in deeply bound situations, proton spin crisis
May
1
comment How do the single photon energy and em-signal energy correlate?
possible duplicate of What is the relation between electromagnetic wave and photon?
May
1
revised How does matter know to obey physical laws?
Remove line breaks
May
1
reviewed Approve suggested edit on What happens in a car crash?