Make: Projects

Super Tritone

Shop Whistle

A jazzy, powerful

compressed-air blast.

By William Gurstelle

88

Kinetic

Remote Control

Shake batteries out of the picture

with this muscle-powered remote.

By Dhananjay V. Gadre

108

4 Make: Volume 12

Solar Xylophone Solarengine circuits

trigger hammers to

strike pentatonic chimes.

By Rory Nugent

98

20-Watt Solar Panel With a few solar cells and a plastic case,

you can utilize the sun’s energy

to power anything from a light bulb to

your entire house. By Parker Jardine

158