143,700 reputation
13244402
bio website ratsauce.co.uk
location Chester, United Kingdom
age 54
visits member for 4 years, 6 months
seen 53 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.


13h
reviewed Leave Open Why is a sine wave considered the fundamental building block of any signal? Why not some other function?
14h
revised Work Function Calculation with Local Electrostatic Potential
Add diagram
14h
answered Work Function Calculation with Local Electrostatic Potential
14h
answered Detecting molecules in space?
1d
reviewed Leave Open Why is the index of refraction different for different wavelengths?
1d
reviewed Leave Open Effective mass in a Bohr atom
1d
reviewed Leave Open Slingshot Energy into traveled distance
1d
reviewed Leave Open Conical train wheels
1d
reviewed Close Why can't I connection the anode of a battery to the cathode of an other battery and get a current flowing?
1d
reviewed Close Can I use high frequency sounds to trigger an infrared motion sensors
1d
comment Question to find distance at which 2 trains will pass each other
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.
1d
answered Why do telescopes move synchronously?
1d
comment Why is the index of refraction different for different wavelengths?
To be fair this is true for most optically transparent materials at visible wavelengths. The refractive index becomes anomalous when the light energy reaches the band gap energy, and for most transparent materials the band gap energy is in the uv.
1d
awarded  Electorate
1d
comment Many cells in parallel
If you connect cells in parallel then the net potential difference depends on the internal resistances of the cells so you need to specify these.
1d
answered Why is the index of refraction different for different wavelengths?
1d
comment Proof of Poisson equation in a gravitational field
I'm voting to close this question as off-topic because it shows insufficient effort
1d
comment Proof of Poisson equation in a gravitational field
Doing an obvious Google search found lots of articles explaining this, including this one of Wikipedia‌​. Are you having problems understanding the derivation? If so, can you extend your question to indicate where the stumbling blocks are?
1d
reviewed Leave Open Why can't we see light travelling from point A to B?
1d
reviewed Approve Strong and weak turbulence