how do Moving Waterfall Pictures work


B

Bramble-Stick

Does anyone know ho these cheesey moving waterfall pictures work?

e.g http://www.moving-waterfall-pictures.com/

I know that they contain a motor and I remember seeing something similar on
lampshades when I was a kid, but never managed to get close up to take one
apart ( I think that Boots would have objected)

Thanks!

Bramblestick
 
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B

Bramble-Stick

Bruce said:
Does anyone know who would possess the complete lack of taste needed to
buy such things?

I have only seen them in ethnic takeaways and restaurants, and mostly
back in the 1970s.
Absolutely agree - I wouldn't part with money for one. Just interested in
how they work, so that I can see if I can build one. At least it will be a
DIY taste fail - I'm of the Readers Digest Manual and Alternative London
school of DIY so taste is compromised anyway :)

Bramblestick
 
A

Adam Aglionby

Absolutely agree - I wouldn't part with money for one. Just interested in
how they work, so that I can see if I can build one. At least it will be a
DIY taste fail - I'm of the Readers Digest Manual and Alternative London
school of DIY so taste is compromised anyway :)

Bramblestick
Look up Moire pattern like


HTH
Adam
 
R

Rod

Adam said:
Look up Moire pattern like


HTH
Adam
Which are (were?) also used for measuring cows. Seriously.

Can't remember the details but something like projecting two sets of
fine lines onto a cow - the resulting moire fringes highlighted the
shape of a cow.

--
Rod

Hypothyroidism is a seriously debilitating condition with an insidious
onset.
Although common it frequently goes undiagnosed.
<www.thyromind.info> <www.thyroiduk.org> <www.altsupportthyroid.org>
 
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B

Bramble-Stick

Adam Aglionby said:
Look up Moire pattern like


HTH
Adam
Excellent! Thanks for that - I'll have some fun playing around (already
demonstrated it to myself using a folded piece of silk...), and hopefully
the results won't be totally tasteless.

Bramblestick
 
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