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From: newton@ils.nwu.edu (David Newton)
Newsgroups: sci.electronics
Subject: Re: Mind Machine - Need LED Flasher
Message-ID: <1287@anaxagoras.ils.nwu.edu>
Date: 3 Apr 91 22:02:39 GMT
References: <1991Apr03.005649.22625@ddsw1.MCS.COM> <5618@vela.acs.oakland.edu>
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Reply-To: newton@ils.nwu.edu (David Newton)
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Organization: The Institute for the Learning Sciences
Lines: 31

In article <5618@vela.acs.oakland.edu>, amaranth@vela.acs.oakland.edu
(Paul Amaranth) writes:
> In article <1991Apr03.005649.22625@ddsw1.MCS.COM> whos@ddsw1.MCS.COM
(Ben Feen) writes:
> >Help!  I want to make a "Mind machine" type device - 2 pairs of red/green
> >LEDs, arranged thus:
> DISCLAIMER:  I have not tried this, and the article explicitly warns of
> the danger of TRIGGERING AN EPILEPTIC SEIZURE IN SUSCEPTIBLE PEOPLE.
> Has anyone built one of these gizmos?

   These toys can be a lot of fun, but for a LOT of people they can be...
unsettling?  They can _easily_ trigger seizures, known as photo-epilepsy.

Dad:  "Dave?  Dave?  Are you okay?"
Dave: "*mumble mumble*"
Dad:  "Dave?  *slap slap*"
Dave: "*froth huh wha froth*?"

Yes, that was me, many many moons ago.  Ambulance, hospital, strobe
light testing, blah blah.  It was pretty cool, but don't know as I'd
want to do it again. 

Oh, the perils of being young.  (God, I was young.)

There are commercial units available at ridiculously high prices.

--
David L. Newton	    |  Work: (708) 467-1015  |      newton@ils.nwu.edu 
ILS, Room 135       |  Home: (708) 332-2321  |-------------------------------
1890 Maple St.      |-Gumby Cyberdeck Jockey-| Kicked out of alt.hackers by
Evanston, IL  60201 |__Dr. Seuss is a god.___| "Real Hackers."  Oh WOE is me.