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From: DAVE@ORION.BITNET
Newsgroups: sci.electronics,sci.physics
Subject: Lasers for communication
Message-ID: <153DAVE@ORION>
Date: 11 Sep 90 21:19:59 GMT
References: <1064.26E59478@ofa123.fidonet.org> <1872@oucsace.cs.OHIOU.EDU>
Organization: New Jersey Institute of Technology
Lines: 6

I saw my high school physis teacher put an LED into the earphone jack of a simp
le radio shack radio, and about 4 feet away, put a phototransistor (?) into the
 microphone jack of a small amplifier, the sound was carried by the pulsing LED
.  I would like to re-create this experiment using a laser from the rooftop of
one campus building to another.  How would I go about this, is it possible, and
 what materials would I need?  Thanx!