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Old March 14th 07, 01:08 AM posted to rec.radio.amateur.homebrew,sci.electronics.design
Jamie Jamie is offline
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First recorded activity by RadioBanter: Oct 2006
Posts: 7
Default Detecting Ultrasound

Michael A. Terrell wrote:

clifto wrote:

John Smith I wrote:

Scott wrote:

clifto wrote:

Stace MacGuyver wrote:

Suspend a thin shaving razor blade between two pieces of dental floss
and put
your ear close to the blade. Watch the razor vibrate.

That's pretty cool, MacGuyver. Does the razor blade do anything?

It cuts off your ear if you get too close

Be better if you could use it as an electric razor ...


Replace the dental floss with Litz wire and attach ends to 110 VAC.

Wait. Maybe not. Considering how many stations you can pick up with a
razor-blade radio, that would probably interfere with vital communications
all throughout the spectrum. What's the resonant frequency of a whisker?




They don't make the blue blades anymore.


Hmm. i was going to say, if it worked, it would be cutting edge
technology!


--
"I'm never wrong, once i thought i was, but was mistaken"
Real Programmers Do things like this.
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