Prof Lakshminarayanan Mahadevan looks at the physics of wrinkles, creases and folds - from the small to the very large (video demos), feeds his venus flytrap, then rides on his magic carpet.
posted on Mar 5, 2008 - View this thread

Ripple Tank Simulation is a delightful, mesmeric java applet simulation of a ripple tank. It demonstrates two dimensional wave phenomena such as interference, diffraction, refraction, resonance, phased arrays, and the Doppler effect (do try the 3D view). From Paul Falstad's fantastic collection of Math, Physics and Engineering Applets.
posted on Jan 25, 2006 - View this thread

Java applets to help visualize various concepts in math, physics, and engineering
posted on Sep 9, 2005 - View this thread

The museum of unworkable devices... Gravity -- it's not just a good idea, it's the law. Perpetual motion, and other wonderful things.
posted on Mar 29, 2003 - View this thread

There's been a lot of talk of late about signal-to-noise ratios here on MeFi (er, Ashcroft who?...). Generally, we think of noise as something that always degrades the quality of a signal. Sometimes, however, the opposite can be the case. Here's a neat little demonstration of a non-linear system in which noise can be used to amplify a signal that would otherwise be too be faint to detect any other way. It exploits a phenomenon known as Stochastic Resonance.
posted on Jan 28, 2001 - View this thread