F-Zero craft from Mean Machines magazine.
Polymer absorbs water and expands. It has almost the same refractive index as water and appears invisible.The polymer is Sodium PolyacrylateRead more about The Refractive Index and see another awesome ‘invisibilty GIFs’ here
Second chance Sunday (a day late).
Circuit board business card is a minimalist credit-card-sized handheld console which includes Tetris. Videos embedded below:
A revolution in minimalist circuit board art design.Barebones Arduino
Capacitive Input Buttons
9+ Hours Playtime
1.6 millimeters total thickness
You can find out more about the project here