For use with a ScratchBoard/PicoBoard/whateveryoucallit This is a simple program for use with a "musical sponge", a damp sponge on a board with tinfoil or other conductive material at each end. Attach the alligator clips, and measure the resistance. Pressing on the sponge changes the ratio of air/water in the sponge, and thus the resistance the circuit experiences. Made in connection with the Learning Technology Center at the Science Museum of Minnesota.
