Transparent artificial muscle plays Grieg to prove a point
Gel-based audio speaker demonstrates capabilities of ionic conductors, long thought limited in application
03-Sep-2013 -
In a materials science laboratory at Harvard University, a transparent disk connected to a laptop fills the room with music—it's the "Morning" prelude from Peer Gynt, played on an ionic speaker.
No ordinary speaker, it consists of a thin sheet of rubber sandwiched between two layers of a ...
electrodes
electrolytes
gases
+5