Branden camp georgia tech.
Piezoelectric roof tiles.
He s holding the electronic components used in the tiles.
Piezoelectric floors generate many microwatts up to many watts per step depending on space pedestrians frequency and piezoelectric technology.
Ilan stern a gtri senior research scientist shows piezoelectric tiles that will be used to create a lighted outdoor footpath at the nasa kennedy space center s visitor complex at cape canaveral florida.
Piezoelectric materials are materials that produce an electric current when they are placed under mechanical stress.
The piezoelectric process is also reversible so if you apply an electric current to these materials they will actually change shape slightly.
When you step on the load bearing glass tile it compresses the piezoelectric element creating an electrical charge that lights up the cavity s 125 leds in the entire footpath about one thousand glass tiles light up in various colors.