Recent content by Antic_Hay

OK, I thought I had the answer but this but it turns out I don't... I want to calculate \frac{\partial t'}{\partial t} So I have t' = \frac{t - \frac{vx}{c^2}}{\sqrt{1 - v^2/c^2}} The answer is supposedly \frac{1}{\sqrt{1 - v^2/c^2}} I don't see how this would be...the bottom line is a...

Ah, that made sense, I knew it would be something trivial, I was just approaching it weirdly. Great, have the answer now, thanks :)

Homework Statement Show that the electromagnetic wave equation \frac{\partial^{2}\phi}{\partial x^{2}} + \frac{\partial^{2}\phi}{\partial y^{2}} + \frac{\partial^{2}\phi}{\partial z^{2}} - \frac{1}{c^2}\frac{\partial^{2} \phi}{\partial t^2} is invariant under a Lorentz transformation...

Hey, that's great, that cleared things up totally, and that link was full of useful detail, thanks a lot :-) You're right about the stationary magnets too, makes much more sense! Thanks :-)

Hi, I'm working with my granddad on a project to build a (simple!) electricity generating windmill. We're not trying to make the most efficient design possible, just a reasonably efficient design given the simple tools and materials we're using. It's mostly just a project for fun! :) So, we...