Sunday, July 15, 2007

One of my favorite optical illusions

Here's a really strange one. Stare at the girl's shadow for about 30 seconds and she will start rotating the other way. She isn't really of course, but you may have to close your eyes to get her going anti-clockwise again.

If you look at the foot nearest the floor, and only at that foot, you'll see it's simply oscillating back and forth. Question: Why do you perceive her spinning clockwise? It's a flat figure with no changing highlights to supplement your intuition.

What happens when your iPhone gets run over by a car?

Ever wonder what happens when your iPhone gets run over by a car?

Well... I found out the hard way. My friend Ryan wrote up the whole story in his blog.

Tuesday, July 10, 2007

The Geocaching Puzzle

Okay... here is the puzzle. If you can figure out the coordinates, then you can plug them into any mapping software (or Google Earth) like this:

37 25 19.072 N, 122 05 06.246 W

This will bring you very close to the location of the cache. The cache itself is a small black rectangular box (like the kind you hide keys in).

Good luck!