100,479 reputation
4146258
bio website ratsauce.co.uk
location Chester, United Kingdom
age 53
visits member for 3 years, 7 months
seen 1 min 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.


19m
comment Angular magnification of a two-lens system
Presumably related to Magnification of an astronomical telescope not in normal adjustment?
23m
answered Is there a way to calculate the photoelectric effect in QED via a Feynman diagram?
30m
reviewed Approve suggested edit on Why is all the voltage used up in a circuit?
30m
reviewed Leave Closed Is the physical design of the human beings the best possible?
30m
reviewed Leave Open How was the formula for kinetic energy found, and who found it?
1h
comment Why is acceleration constant in this example?
A downvote? Not that I'm fussed, but you need to tell me why you downvoted or I won't know how I can improve the answer.
3h
comment Unsatisfactory explanation for the EMF measurement of a battery
@Just_a_fool: you'll have to draw a diagram of the three resistor circuit as I'm not sure what you're measuring in it. Incidentally CuriousOne is correct that there exist voltmeters that have effectively infinite resistance.
3h
answered Why is all the voltage used up in a circuit?
3h
answered Unsatisfactory explanation for the EMF measurement of a battery
4h
reviewed Reject suggested edit on How was the formula for kinetic energy found, and who found it?
4h
reviewed Reject suggested edit on Trying to make a realistic simulation of 'breaks' (Pool)
4h
reviewed Reject suggested edit on Newton's third law does not apply to the kinetic energy formula?
4h
comment Taking photos without photons?
nature.com/nature/journal/v512/n7515/full/nature13586.html
5h
comment Mass of magnet measured by weighing machine
This looks awfully like a homework question. Can you expand it to show what you've considered and precisely where you're stuck in calculating the answer?
5h
answered Is the Big Bang defined as before or after Inflation?
5h
reviewed Reject suggested edit on Trying to make a realistic simulation of 'breaks' (Pool)
5h
reviewed Leave Closed Metaphysics and spacial dimensions
5h
reviewed Leave Open Why potential energy of external force on particle attached to spring is equal to full force multiplied by full displacement?
5h
reviewed Close Gravity doesn't seem to work the way it is supposed to
5h
reviewed Close Is gravity not a force?