At 06:22 AM 3/8/2005, Jules Richardson wrote:
Bamboo troughs. Full of sand = 1, empty = 0. Works for
both sighted and
non-sighted people. Unless it's raining. :-)
Yes, I left that part out. You need water, too, to make the
bamboo and sand computer. Gravity and sand alone don't move
far and fast enough. Water, sand and gravity - whew, that
could double the clock speed from 0.0002 Hz! Ah, but I see
a snarky hand reaching up, asking "Why do you need the sand
at all?" and I say "Persistence of memory!"
- John