PH253: what is the speed of gravity?

Related to the material for the next couple of lectures, in a way.

PH253: slides for the next few lectures

For the next ~3 lectures, here are some slides I might use related to the fields of charges in motion and radiation from accelerated charges.

I say 'might' because I might decide to just draw on the board instead of messing with the projector. In any case, the PDF contains useful figures to go along with the lectures.

Double slit experiment

Cool images/explanation and video of an electron double-slit experiment, courtesy Hitachi. Time-lapse of single-electron microscopy ... does not get much more direct than this. Spooky, but true.

(Some companies still do really cool R&D. More nuggets to be mined on the Hitachi site ...)

Thanks ...

... to many of you for sending in sensibly-named files :-)

Example test problems coming tomorrow. For now, check out this, and this.

If you're not feeling mathy, try some animations. This page has some nice ones that let you see the difference between phase and group velocity nicely, as well as how the wave packet spreads (so you can see how the uncertainty in localizing the associated particle changes).

PH253: slides I'll use on Tuesday 12 Jan

Here are the slides I'll use in class. Partly official course intro stuff, mostly figures to aid in relativity explanations.