Re: pinhole Remote Controls

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From: Paul Doherty (pauld@exploratorium.edu)
Date: Thu May 05 2005 - 07:17:44 PDT 

Message-Id: <72F70519-BD70-11D9-BDED-000A95B38012@exploratorium.edu>
From: Paul Doherty <pauld@exploratorium.edu>
Subject: Re: pinhole Remote Controls
Date: Thu, 5 May 2005 07:17:44 -0700

Hi Marti

The remotes emit pulsed infrared light.
You cannot see it, but most digital cameras and video cameras can see
it.
Just point the camera at the remote control while watching the view
screen, press the buttons on the remote and watch the light flash.

You can also get an infrared sensitive card which will glow when
exposed to infrared from the remote controls.

Paul D

On May 5, 2005, at 6:44 AM, Andreski, Martha wrote:

> Does anyone have any ideas for how we can use old remote controls in
> our
> classroom? These things keep piling up and I'm sure we can do
> something
> educational and interesting with them.
>
>
> Marti Andreski
> De La Salle HS
> 1130 Winton Drive
> Concord, CA 94518
> (925) 686-3310 ext. 7002
>
>
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