09 SEP 2016 by ideonexus
Why Did Everyone Draw that Fancy "S" in Grade School
"The reason kids go through this is probably because it's a Moebius strip," he said, referring to the sort of looped one-surface shapes Escher was fond of drawing. "It can't be drawn continuously, but it does have a perpetual flow."
I think he was on to something. Most nine-year-olds can't draw, so when someone hands them a magical recipe to create something fairly cool, on demand—that'll go viral. Especially when the shape has the sophisticated, mathematical lineage of a Moebius strip. Y...01 JAN 2012 by ideonexus
Thinking About Aliens Stretches the Imagination
The virtue of thinking about life elsewhere is that it forces us to stretch our
imaginations. Can we think of alternative solutions to biological problems already
solved in one particular way on Earth? For example, the wheel is a comparatively
recent invention on the planet Earth. It seems to have been invented in the ancient
Near East less than ten thousand years ago. In fact, the high civilizations of Meso-
America, the Aztecs and the Mayas, never employed the wheel, except for children's t...The possible life that could evolve in other environments is an imaginative treasure chest.
(TODO: The wheeled organisms described here appear in the Amber Spyglass by Pullman)