Brett Coulthard
Author of these Magazine Articles
Most Useless Machine
What's more useless than a machine whose sole purpose is to turn itself?
In
Electronics
from MAKE:
schoolsout: School's Out page 78
The Most Useless Machine
Make a machine that, when you flip the switch on, an arm reaches out of a door to turn the switch back off.
From MAKE:
23: Gadgets page 94
