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a large pendulum with a laserpointer as the bob swinging above a sheet of glow in the dark material. bob is on a ridgid arm attached hung by means of 2 metal jump rings. essentially the same as pendulum sand art, but since there is no resistance from the sand, the pendulum will take longer to come to
rest, and the patterns formed will be more intricate. turn off the lights and set into motion, use camera without flash to record interesting patterns.
sand pendulum art
best picture i could find of pendulum sand tracing, no earthquake required. [bleh, Aug 21 2006, last modified Aug 22 2006]
Make your own. [ldischler, Aug 21 2006]
[ldischler, Aug 21 2006]
Glow in the dark sheets
[ldischler, Aug 22 2006]
||nice link [idis], but no damping for the cool spirals and whatnot
||A laser harmonograph. I like it, but I wonder if the laserpointer will have enough power.
||Ah, Mister Bond, would you like a tattoo?
||[+] for that anno, [Dub]. Chortle.
||//if a laserpointer will have enough
a common laserpointer will cause glow
in the dark tape (and those stick on
stars and such) to "charge" quickly. Im
not sure how long the charge will last
though, as i havent done this recently.
||I love this idea! I think that it could easily be baked and we ([bleh], you ARE a genrerous fellow, no?) could all retire on the profits. Please place my order today MasterCard 5467 8164 4134 3800 exp 07/07
||I do plan on baking this, but havent the
time now. I just built a 3 foot sand
pendulum that works beautifully.
tweaking the depth of said pendulum
into the sand is what inspired this idea.
could very easily be done with about
$20 worth of materials for the
pendulum itself, and another $20 or so
for the glow stuff (thanks again [idis]
for the link). so $40 overhead, i figure
$120 retail... anyone else feel like
posting a credit card number? thanks
for the votes!