>>Yeah, I think a remote-control class IR LED and photosensor should
>>work.  If you doupt it, just aim your TV remote at your eye, at arm's
>>length, then face your TV.  WHen your eye is closed, the remote
>>doesn't work!  When your eye is open, it does!  Gofigure..  I just
>>tried this with my TV and it seems to know the difference!

>        Pretty amazing!!!  And how was this discovered?  Bored with TV?
>Picked up the remote backwards?
>        Anyway... it's pretty neat.  I'm sure it'll impres my wife!
>PS  - Some practical uses...  Turn off the TV when I fall asleep.  Sound
>an alarm when I close my eyes while driving...

How about modulating the beam with an audio subliminal message on the
assumption there could be some 'decoding' by the retina through
and subsidiary neural effects etc

Hey - is the CIA listening ?

Mike in Perth, Not too far from Pine Gap...


Some say there is no magic but, all things begin with thought then it becomes
academic, then some poor slob works out a practical way to implement all that
theory, this is called Engineering - for most people another form of magic.
                                                                       Massen