Reconstruction of a planet’s bizarre orbit with Ptolemy’s system of epicycles and deferents.
What’s behind this? Any periodic function can be represented as a Fourier series. All that’s really happening here is one is plotting it in polar coordinates, and the Fourier components become epicycles. Any one-line drawing made without the pen leaving the paper and starting where it stops, should be able to be represented this way.
I don’t know, but here’s an applet demonstrating Brownian motion
The Onion: Apple Claims New iPhone Only Visible To Most Loyal Of Customers
“I am proud today to introduce to those who really, truly deserve it, our most incredible iPhone yet,” announced Apple CEO Steve Jobs, extending his seemingly empty left palm toward the eagerly awaiting crowd. “Not only is this our lightest and slimmest model ever, but as any truly savvy Apple customer can clearly see, it’s also the most handsome product we’ve ever designed.”
World Science Festival 2009: Bobby McFerrin Demonstrates the Power of the Pentatonic Scale
Bobby McFerrin demonstrates the power of the pentatonic scale, using audience participation, at the event “Notes & Neurons: In Search of the Common Chorus”, from the 2009 World Science Festival, June 12, 2009.
Long day of driving yesterday, and at some point I’ll start wading through all of my RSS feeds, etc., but for now, here’s a sign from just outside of Ridgeway, PA (“Avoid carpal-tunnel: just keep your headlights turned on!”)
