Date: Tue, 2 Dec 2003 10:22:45 -0800

Author: Bill Alexander

Subject: Re: Magicube flash bulbs

Post:

It has been a long time since I have seen one of these, but my recollection
is that it was triggered by a mechanical hit on a small rod extending out
of the base. This was the "magic" part, since you didn't need batteries.
I believe it broke a small vial of oxygen in the larger flash bulb, but I
am not certain. I am fairly certain that it did not involve
Piezoelelectricity. It was a very clever solution to the problem of dead
batteries, one that probably died out due to the development of cheap
electronic flashes and to not sharing it w/ other camera manufacturers.


>Tappers,
>
>Anyone out there have any idea what the triggering mechanism is for a
>Magicube type flash bulb. Piezoelectric, chemical, ??????
>
>Thanks,
>Dale Stille
>U of Iowa


Bill Alexander Excuse me if I ramble,
Physics Dept. but I drive a Nash.
Humboldt State University
Arcata, CA 95521

phone: (707) 826-3212
e-mail: wca1@humboldt.edu
http://sorrel.humboldt.edu/~phyx/faculty/alexander.html

From Gerald_Zani@brown.edu Tue Dec 2 13:31:01 2003

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