Month: August 2008

DIY: Parabolic mirror

You can make a parabolic mirror from an old satellite TV dish, or a bathroom vanity mirror but that’s not fun. Making your own mirror allows you to get the exact curvature you need for whatever you might be burning, cooking or heating. It’s a fair amount of work, but the resulting energy the mirror […]

Synchronizing fireflies v2.0

Alex of Tinkerlog has done a new version of his very cool Firefly circuit. He writes: This is a remake of the fireflies which I did a year ago. I was always fascinated by the emergence of patterns. One I like most is the synchronization of hundreds or thousands of fireflies. First they flash randomly […]

Shadow cast panel art

Shadow cast panel art

Drzach & Suchy’s Shadow Casting Panels display one of multiple images in a single display surface determined by lighting position – The main observation underlying the concept of SCP is that the shadow cast by a physical object depends on the shape of the object and the direction of the illumination. This enables the control […]