More Blimpy Goodness

More Blimpy Goodness

Over at <I>Popular Science</I>, there's a post about a gargantuan "cruise blimp" that just seems too cool to ever get built. Check out the illustration of the observation deck&mdash;it's like an irony-free <A HREF="http://www.jamesgoodmangallery.com/mccall/pages/exhibframez.html">Bruce McCall</A> illo, which is kind of disorienting.

Layman's Guide to the Banach-Tarski Paradox

Layman's Guide to the Banach-Tarski Paradox

The BTP posits that it's possible to take a solid sphere, cut it into pieces, rearrange the pieces using nothing more than rotation and translation, and then re-assemble them into two identical copies of the original sphere. "In other words," <I>www.kiro5hin.org</I&gt; explains, "you've doubled the volume of the original sphere."

Popular Myths

Popular Myths

Glad to learn these are myths. I've always wondered if my year in Peru was wasted just because I could never determine if the water swirled in the wrong direction in my basin. I still can't tell you which way it flows when I flush.

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