95,213 reputation
3129236
bio website ratsauce.co.uk
location Chester, United Kingdom
age 53
visits member for 3 years, 6 months
seen 12 secs 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.


1d
reviewed Leave Open Shape of the universe?
1d
reviewed Leave Open Does the universe have an edge/boundary/barrier? If yes, what is at the edge?
2d
answered How do I calculate motor efficiency from voltage, current and RPM?
2d
reviewed Leave Open Car headlights glass - why such uneven shape/texture?
2d
reviewed Close Double slit experiment with slit material acting as a detector
2d
reviewed Close The magnetic polarity of earth?
2d
reviewed Close What strategy should I use to approach this problem? If my straight line approximation doesn't work
2d
reviewed Close How was Newton able to guess that gravitational force is inversely proportional to distance squared?
2d
reviewed Close What is the relationship of the curl of a vector with its conservativeness?
2d
reviewed Close How do geocentric theories explain seasons?
2d
reviewed Leave Open How to derive this formula?
2d
comment Do the standard cosmology models spontaneously break Lorentz symmetry?
Related: Is the CMB rest frame special? where does it come from? and Assuming that the Cosmological Principle is correct, does this imply that the universe possess an empirically privileged reference frame?
2d
comment Wave packets and amplitude
@DrEntropy: indeed.
2d
reviewed No Action Needed How does a vertical counter-weight system work?
2d
reviewed Approve suggested edit on Electric Field for a hollow sphere with point charge
2d
reviewed No Action Needed Bernoulli's principle on a curve ball
2d
comment What reflects/scatters sunlight most?
See Why does the refractive index depend on wavelength? for some background on the link between optical absorption and refractive index. Yes, they are connected, but not in any simple way.
2d
comment What reflects/scatters sunlight most?
That's a big question because absorption is determined by the band structure of the solid and also its defect states, while reflectivity is determined by the refractive index, which is in turn determined by the electronic structure. You're asking us to write you a several thousand word essay.
2d
answered Wave packets and amplitude
2d
answered The dimensional formula of distance travelled in $n$th second