132,048 reputation
8221365
bio website ratsauce.co.uk
location Chester, United Kingdom
age 54
visits member for 4 years, 3 months
seen 59 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.


1h
reviewed Reject Why can't I do this to get infinite energy?
1h
answered Which is more fundamental,''constancy of speed of light'' or ''space-time''?
1h
comment HOMEWORK HELP! Simultaneous equations (graphical method)
Hi Joseph 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.
3h
reviewed No Action Needed How much magnetic field is required to magnetize a 10x10 cm mumetal shield?
3h
reviewed Looks OK Could black holes be driving the expanding universe (dark energy)?
3h
reviewed Delete Why does Hauksbee's electrostatic machine produce light?
3h
reviewed Leave Open GR. Gauge fixing in 2-sphere
3h
reviewed Close Finding gravitational acceleration question
3h
reviewed Close What if time translates into particle?
3h
reviewed Close How to calculate angular velocity given constant tangential acceleration?
3h
comment How to calculate angular velocity given constant tangential acceleration?
Hi Meitar 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.
3h
reviewed Close Continuum mechanics treatment of the Lariat Chain
3h
reviewed Close Wave speed from moving source?
3h
comment Any disadvantage for sending rocket straight up?
See my answer to this question, which is almost but not quite a duplicate of yours. If you send the rocket and satellite straight up the satellite is going to fall straight back down again!
3h
comment Pinhole Camera Problem!
@InderGill: the diffraction pattern changes with distance from the diffracting object. The equation I give applies to the far field limit, i.e. far from the diffracting object, and in this limit the pattern is known Fraunhofer diffraction. As you move nearer the object the pattern changes and this is known as Fresnel diffraction. So they are the same think, just viewed at different distances.
13h
reviewed Close How to debunk 'The Electric Universe'?
13h
reviewed Close “Equidistant” spectra in quantum mechanics
13h
reviewed Leave Open Lagrangian, geodesics and relativity
13h
reviewed Close Why is there zero point energy at absolute zero temperature?
22h
answered Pinhole Camera Problem!