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Was browsing thinkgeek www.thinkgeek.com when I came across this neat
little device.  It seems to be a lightwriter, (I think I've heard
these discussed on the list before) but their description confuses me
a little.  I understand the concept in principle, it's pretty simple
to build something like this (i.e. Tony's propeller clock), but this
excerpt shows the problem I have with it:

"Fantazein has a rapidly oscillating wand carrying tiny lights
(LED's) at its tip that creates the rare display. As the wand whips
through space, the LED's shimmer at megahertz speed so that you see
their light but cannot see the wand"

Megahertz speeds?  From a mechanical oscillator?  How would the
stresses not tear it appart?  Or is this just miswritten?

Regards,
- --Brendan

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