The Physics of television
http://www.kent.k12.wa.us/staff/trobinso/physicspages/POpart2/po2002/TV/emw.html -- Some pictures of how an electromagnetic wave generates a current in a wire loop (a.k.a. antenna).
Posted at 23:25 #

Walter Fendt's DC motor animation
http://www.walter-fendt.de/ph11e/electricmotor.htm -- Javascript-based animation showing forces on a rotating loop of wire with a constant current.
Posted at 10:07 #

Maxwell's equations and EM waves
http://www.phys.virginia.edu/classes/109N/more_stuff/Maxwell_Eq.html -- Exposition by Michael Fowler at UVa
Posted at 14:14 #

Physics of thunderstorms
http://maxwell.physics.mun.ca/MPL/Physics2054/lectures2054/lecture14.pdf -- There is usually an atmospheric electric potential gradient of 100 V/m, but this can rise by orders of magnitude beneath a thunderstorm. (Here's Google's cached HTML version of the page above).
Posted at 09:28 #

Relativity, in words of four letters or less
http://www.muppetlabs.com/~breadbox/txt/al.html --
Posted at 12:57 #

Protein folding and energy landscapes
http://www.physics.ubc.ca/~steve/reviewpt1.pdf -- Review article "Understanding protein folding with energy landscape theory", Plotkin and Onuchik.
Posted at 09:48 #

online integrals -- the "Integrator"
http://integrals.wolfram.com/ -- ...uses Mathematica to integrate any expression you can type in with their syntax.

Functions must be capitalized, and function arguments enclosed in square brackets, i.e. Sin[x^2] and not sin(x^2).
Posted at 22:47 #

Francis Bacon and the goal of science
http://www.univie.ac.at/science-archives/fulda/feld_4/bacon.html -- In a german essay on "Anxiety about scientific progress", Erhard Oeser points out that Bacon believed that the goal of science was to increase and broaden Man's power. Bacon appears to have taken this literally, as he lost his position as Lord Chancellor, among other things, because of gifts he received from those applying for patents and licenses.
Posted at 11:17 #