Volume 13 (PDF)
The fireball shooter is one of 13 fiendishly ingenious illusions you can
build! Plus: air-powered "boom stick," smart structure, music sequencer
for babies, and TV-B-Gone baseball cap that turns off obnoxious TVs.
Volume 14 (PDF)
Bring new depth to the field of vision! Make 3D movies, a webcam microscope, R/C buggy with video tele-
presence, a kaleidoscope, and more. Plus: taffy pulling machine, spy sunglasses, bike light, prank beeper.
Volume 15 (PDF)
Make DIY instruments: a laser harp, guitar stomp boxes, Drumbot, pocket
synth, modded Guitar Hero "keytar." Plus: air rockets, smoke ring vortex
cannon, Seebeck generator, and digital camera automation.
Volume 16 (PDF)
» Spy Tech
Make 10 sneaky gadgets: spy scopes, listening bug, laser communicator,
self-destructing object, stealth USB drive, and more. Plus: R/C pole
camera, hot-wire foam cutter, Chladni plate, surface-mount soldering.
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