109,261 reputation
4166295
bio website ratsauce.co.uk
location Chester, United Kingdom
age 53
visits member for 3 years, 9 months
seen 9 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.


18h
reviewed Leave Closed Physical reasoning and mathematical problems
18h
reviewed Close What is the physical interpretation of time-energy uncertainty?
18h
reviewed Close light movement, not in a straight line
18h
answered Can this type of graph be analysed to produce any meaningful data?
19h
comment What does one get when admitting negative mass?
I think you should do some Googling, because there are a thousand articles on this subject out there in Googlespace. If you have specific technical questions about the subject then ask them as a separate question.
22h
reviewed Close Is Japan truly the “Land of the Rising Sun”?
22h
reviewed Close How can Terminal Velocity be greater than gravity?
22h
comment constant $c$ in Lorentz force
The form of the equation you've seen is using cgs-Gaussian units. See this Wikipedia article for more.
22h
answered Is it possible to use “negative sound waves” to “cancel out” a sound to create silence?
1d
reviewed Close can there be an object which reflects( not illuminates ) electromagnetic waves in the non visible region?
1d
comment Concerning the transtition between matter dominated universe and radiation dominated universe
@Gödel: no, all four contributions to the density are treated together.
1d
reviewed Leave Open Conceptual Question on Work and Potential Energy
1d
reviewed Leave Open What will happen if a hairdryer is turned on in an air tight box?
1d
reviewed Approve suggested edit on Water escaping from a pendulum bob, how is time period affected?
1d
reviewed No Action Needed Wrong calculation of work done on a spring, how is it wrong?
1d
comment Concerning the transtition between matter dominated universe and radiation dominated universe
@Gödel: see How does the Hubble parameter change with the age of the universe?. This shows how the scale factor is calculated taking into account radiation as well as matter.
1d
answered Quantum mechanics: Finite square well problem
1d
answered Can we harvest energy from constant gripping?
1d
reviewed Close what is variable mass of earth or center of mass?
1d
reviewed Leave Open How to calculate how much air is leaking out of an object?