Re: "Raiders" Boobytrap Question: "stay out of the light"? Any engineers here?

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Posted by Brian K. from on January 29, 2000 at 12:42:26:

In Reply to: "Raiders" Boobytrap Question: "stay out of the light"? Any engineers here? posted by Inbanana Jones on January 29, 2000 at 05:22:02:

: How, exactly, does that pointy-spikey thing work?
: Is there any reasonable explanation?

: All I can figure is that: the wall upon which the light shines is covered with some kind of selenium or photo-sensitive algae, and when interrupted the algae contracts slightly, setting off a hyper-sensitive balance mechanism in the surrounding tunnel, which then shoots out the spikey thing.

: Any engineers out there with ideas?

: Science-fiction writer Lester Del Ray (I believe) wrote a popular book on "prehistoric technology", but light-sensitive traps weren't addressed. Yeah, it's just a movie, but any ideas???

What I really don't understand, is that if the balance was so delicate with this photo sensitive algae, does that mean that every day for 1000 years in Peru was bright sunshine?? no storms or cloudy days setting it off???

I dunno...

Brian K.

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