Balancing Ball Snack.
Bouncing Ball Snack and Math Root
The mathematics of the bouncing ball is available in the draft book Math Roots by Tom Humphrey. (Hey Joe someday I'd like to get some help putting these Math Roots on-line for our partner museums.)
Drawing Table Snack
Clothes pin harmonica exploration, scroll down to the end and learn to build this clothes pin harmonics. Inside the clothespin a rubber band vibrates when you blow across it, just like the rubber band in the Fluttering Bridge exhibit. Many people know how to stretch a blade of grass between their thumbs then blow through the gap between teir thumbs to create a sound from the fluttering grass.
Wind blowing across the Tacoma Narrows Bridge excited it into oscillations which destroyed the bridge.
Pendulum Snake Exploration
Single Pendulum Math Root, An online guide to discovering the mathematics of a pendulum.
Square Wheels Snack
The third activity on the pages available at tis link is the square wheels activity.
(We recently discovered that it is fun to be able to tip the square wheels track up at one end so that the square wheels cart rolls smoothly down the track under gravity power.
Computer Stroboscope Exploration
Turbulent Orb Exploration
The Turbulent Orb Snack apears in the Exploratorium Science Snackbook, but is not on-line.
Scientific Explorations with Paul Doherty
5 May 2003