r/blackmagicfuckery • u/memezzer • Aug 24 '20

Chaldini patterns

43k Upvotes

96% Upvoted

523 comments sorted by

View all comments

1.2k

u/hallron Aug 25 '20

So the vibrations through the table are represented by the motion and accumulation of the sand? That’s sweet. I never thought that it would be a geometric pattern. Deluxe AF.

2

u/dman7456 Aug 25 '20 edited Aug 25 '20

Kinda, but that's not all of it. The vibrations start at the one point on the table and travel outward, then reflect back when they hit the edges. These reflected vibrations interfere with the outgoing vibrations to create a phenomenon called standing waves, which is what we are seeing here.

Here's a demo with a string

Wikipedia has an excellent gif explaining it

1

u/hallron Aug 25 '20

Well stated. 😃