10-Rail Model Rocket Mega-Launcher
Make the cub scout rocket derby a blast.
Posted by Doug Desrochers
Categories: Kids & Family, Fun & Games | No Comments
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Lensless Microscope
Inside your webcam is an imager chip with thousands of sensors, each much smaller than a hair. Replace the lens with an LED, place a sample directly on the the...
Posted by Tom Zimmerman
Categories: Computers & Mobile, Photography & Video, Science | No Comments
The Most Useless Machine
Through its one meaningless act of defiance, it speaks volumes.
Posted by Brett Coulthard
Categories: Fun & Games | 3 Comments
The $5 Cracker Box Amp
Build this workable little practice amp in about an hour.
Posted by Ed Vogel
Categories: Music | 5 Comments
Plush Irradiated Sirloin
Microcontroller night light illuminates meaty issues.
Posted by Becky Stern
Categories: Electronics, Arduino | No Comments
2-Mile Camera Remote
Walkie-talkie actuator lets everyone pose without rushing.
Posted by Tom Rodgers
Categories: Electronics, Photography & Video | No Comments
Elastic String Bass
Optically amplified rubber band twang.
Posted by Len Keeler
Categories: Home, Music | No Comments
Beetlebots
Ultra-simple bugbot navigates with feelers and switches.
Posted by Jerome Demers
Categories: Robotics | No Comments
