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 other awesome ‘invisibilty GIFs’ here
Second chance Sunday (a day late).
So, this is a thing. These are polystyrene beads, so more…polystyrenebending. There are 4 speakers around this that out put an ultrasonic frequency. It sets up what’s called a standing wave between them. A standing wave is a wave that doesn’t move backwards or forwards in…
Not my art. but definitely art.
Thermochromic table by Jay Watson