147,043 reputation
13250412
bio website ratsauce.co.uk
location Chester, United Kingdom
age 54
visits member for 4 years, 7 months
seen 13 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.


13h
reviewed Leave Closed Difference between mass and weight
13h
reviewed Leave Closed Problem: When does a constant velocity catch up to a certain acceleration? What is the maximum acceleration?
13h
reviewed Leave Open Can there be a link between non-locality and non-Markovianity?
13h
reviewed Leave Open Changing D'Almbertian operator
13h
comment Finding the speed of a car
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.
18h
comment Change without Work
In that case you are in effect asking if there is any such thing as a totally free particle. The answer is (as far as we know) no there isn't.
18h
reviewed Leave Open What is the total energy stored in lattice of point charges?
18h
comment A few questions about gravity
Have a look at this question, this question and this article.
19h
reviewed No Action Needed How far up an object is its gravitational potential energy taken from?
19h
reviewed Close A few questions about gravity
19h
comment A car honking it's horn, how long until the car hears the sound reflected?
Hi Ben 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.
19h
comment Altering a model to account for another variable
Hi Philip 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.
19h
revised Altering a model to account for another variable
edited tags
21h
comment How to find forces in wires at equilibrium
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.
21h
revised How to find forces in wires at equilibrium
edited tags
22h
reviewed Looks OK Is the retentivity of soft iron more than that of steel?
22h
reviewed Leave Open Problem with tracing over the environment and obtaining reduced density operator
22h
reviewed Close How to calculate the linear speed without angular velocity?
22h
comment Can any one explain how to obtain the frequency distribution versus density of state, from dispersion relation?
You've already asked this, and the previous attempt was closed as unclear. Please don't just ask exactly the same question again. Make some attempt to research the area then ask a more precise question that we can usefully answer.
22h
comment Can any one explain how to obtain the frequency distribution versus density of state, from dispersion relation?
possible duplicate of How to obtain phonon frequency spectrum from dispersion relation