Xref: utzoo sci.electronics:3910 rec.audio:8459
Path: utzoo!utgpu!water!watmath!clyde!att!rutgers!gatech!ncsuvx!ece-csc!jnh
From: jnh@ece-csc.UUCP (Joseph Nathan Hall)
Newsgroups: sci.electronics,rec.audio
Subject: Re: Looking for Blue LEDs
Message-ID: <3785@ece-csc.UUCP>
Date: 26 Sep 88 09:46:22 GMT
References: <1138@nmtsun.nmt.edu> <862@ritcv.UUCP> <255@rna.UUCP> <4422@lynx.UUCP> <871@ritcv.UUCP> <262@rna.UUCP> <1988Sep24.051114.15993@utzoo.uucp>
Reply-To: jnh@ece-csc.UUCP (Joseph Nathan Hall)
Organization: North Carolina State University, Raleigh, NC
Lines: 22

In article <1988Sep24.051114.15993@utzoo.uucp> henry@utzoo.uucp (Henry Spencer) writes:
 In article <262@rna.UUCP> dan@rna.UUCP (Dan Ts'o) writes:
 >... But if you add
 >red light to green light, you get yellow light, not brown paint.
 
 Dept of Nitpicking:  actually you don't get yellow light, you get light
 that *looks* yellow to an unaided human eye.  A spectrophotometer (or
 just a prism) will reveal that it really still is red plus green.  (I
 have seen people confused over this, so it seemed worth mentioning.)

Well, now, that depends upon how broad the spectra of the aforementioned
red and green sources are, doesn't it?

I'm delighted that so many of our audiophiles are opti-philes (or whatever).
This is certainly a more exciting topic, anyway, than CD longevity, mercury-
filled cables (:-) sorry), Sony Portables and whether or not your car
CD player skips ... sheesh!
-- 
v   v sssss|| joseph hall                      || 201-1D Hampton Lee Court
 v v s   s || jnh@ece-csc.ncsu.edu (Internet)  || Cary, NC  27511
  v   sss  || the opinions expressed herein are not necessarily those of my
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