Here's a good description of what might be happening.
http://www.thefreelibrary.com/The+electric+Life+Saver+effect%3a+wintergreen-candy+research+is...-a06551582
I had pondered solutions estimating the intensity of the visible light, but the article above and this one suggests there's a lot...
Yes - each electron in the spud will be repulsed by every other electron, and attracted by every proton - with an excess of electrons there will be a net repulsive force, and the electrons are pushed apart (dragging their atoms with them, if we assume a potato is an insulator, and so the...
Thanks very much - I've searched high and low for this - everywhere offers up explanations based on field lines being attracted/diverted, but I'm much more comfortable thinking about magnetism from the relativistic viewpoint, and then using field lines as a tool to aid comprehension. [I do find...
How about a magnet using a Halbach array on the body of the wallet pointing out
http://en.wikipedia.org/wiki/Halbach_array
and a piece of soft iron on the flap to clip onto the magnet ? - (see your local fridge magnet manufacturers for a source)
then you might be able to get your object...
Could someone please explain how magnetic shielding works ? (not superconductors - the mu metal type)
Most of the explanations on the site talk about a material with high permeability providing an 'easier path' for magnetic field lines to pass through than the surrounding space, so reducing...
After a good night's sleep, I think this is a better articulation of the problem:
[I've gone for the Maclaurin series rather than Taylor series to avoid ambiguities re what number the Taylor series is being expanded around. Clearly one could generalise this.]
Let P(y) be the Maclaurin...
Yes, Taylor series about 0.
When I wrote this up I was torn between trying to get my general idea across reasonably succinctly, or being very precise and boring the pants off everyone (or more likely losing myself in the detail).
I take your point, and this is what I was alluding to when I...
Thanks - Agree with all your points, my comment re it not equalling it's Taylor expansion only occurred to me when I was typing it up, so not well thought out.
Re the examples, the first does as one would expect, it's the second that's the interesting one.
I've got a spreadsheet if anyone...
This isn't really a question (other than to ask if this has been considered before) but rather an interesting observation.
Lest anyone misunderstands the purpose of this post, I'm not trying to argue that maths is 'broken' or anything like that - maybe just that sometimes the 'obvious'...
Just seeking a bit of guidance if I may ?
If Lambda 1 is the time dilation caused by a gravitational field (ie proper time outside field/proper time inside field for static observers), and Lambda 2 is the usual time dilation under special relativity for a moving body (both lambda's >= 1), how...