Path: utzoo!utgpu!watserv1!watmath!att!att!emory!gatech!prism!sun13!murray
From: murray@sun13.scri.fsu.edu (John Murray)
Newsgroups: sci.electronics
Subject: Re: Electronic Stud Finders
Message-ID: <1302@sun13.scri.fsu.edu>
Date: 30 Oct 90 22:47:46 GMT
References: <4110@radio.oakhill.UUCP> <533@chiton.ucsd.edu>
Organization: SCRI, Florida State University
Lines: 26

In article <533@chiton.ucsd.edu> cdl@chiton (Carl Lowenstein) writes:
>In article <4110@radio.oakhill.UUCP> charlie@oakhill.UUCP (Charlie Thompson) writes:
>>How do those electronic stud finders work?  They seem
>>to be able to distinguish fingers from thin air as well.
>>They are apparently electrostatic or capactive from what
>>I can tell. 

>They are acoustic.  Sonar, so to speak.

Silly games to play with your co-workers:
	Grab a stud-finder, wave it around in the air for a while, then
scan across his(*) chest. It'll pick up the sternum just fine. "Whoops!
found a stud!" (I said it was silly, didn't I?)

(*) I wanted to say "his/her chest" here, but after thinking about it, I
realized scanning a female chest with a stud finder might get you slapped.:-/ 

>-- 
>        carl lowenstein         marine physical lab     u.c. san diego
>        {decvax|ucbvax} !ucsd!mpl!cdl                 cdl@mpl.ucsd.edu
>                                                  clowenstein@ucsd.edu

Disclaimer: Any opinions above have little or nothing to do with reality.
John R. Murray               | "They call me Mr. Know-it-all, I am so eloquent.
murray@vsjrm.scri.fsu.edu    |  Perfection is my middle name!
Supercomputer Research Inst. | ..and whatever rhymes with 'eloquent'." - Primus