Ummmmm......we're not in a vacuum down here, at least MOST of us aren't..
Dragom
Forum Addict
Posts: 883
Posted: Sat Oct 02, 2010 9:15 pm
A speaker and mic, an electrically charged assemblage of paper and magnets. They take sound and change it into electric current and vice versa.
Is this pinned quartz system equally vulnerably to dust, strong magnetics, water and loud signal?
Does it have to have power fed into it or is it inert?
herbie
CKA Uber
Posts: 11829
Posted: Sun Oct 03, 2010 12:32 pm
I Soviet Russia used string tied to helmets....
Yogi
CKA Super Elite
Posts: 8851
Posted: Sun Oct 03, 2010 12:43 pm
In a week or so, I should be able to pick up a 'Chinese knock-off' at Princess Auto, for a fraction of what the Fins would want!
xerxes
CKA Uber
Posts: 19937
Posted: Sun Oct 03, 2010 3:31 pm
As good an atricle to use this for as any...
CrazyNewfie
Forum Junkie
Posts: 579
Posted: Mon Oct 04, 2010 6:39 am
I am sure in the future this new discovery will be important, we just may not be advanced enough for this to have any immediate contribution to our society. Maybe once we start going out and exploring space more we could use this to send sound wave through space for some yet undiscovered purpose.
Forum Elite 
![[huh]](./images/smilies/icon_scratch.gif "huh?"){kind=icon}
Ummmmm......we're not in a vacuum down here, at least MOST of us aren't.. 
