Gel-based audio speaker - ionic conductors 20 hertz to 20 kilohertz.
"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."
Read more at: http://phys.org/news/2013-08-gel-based-audio-speaker-capabilities-ionic.html#jCp
Just starting, so needs development. I like the "transparent" idea.
http://phys.org/news/2013-08-gel-based-audio-speaker-capabilities-ionic.html
zz.
"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."
Read more at: http://phys.org/news/2013-08-gel-based-audio-speaker-capabilities-ionic.html#jCp
Just starting, so needs development. I like the "transparent" idea.
http://phys.org/news/2013-08-gel-based-audio-speaker-capabilities-ionic.html
zz.