On: Real Life Model of M.C. Escher’s “Waterfall”

[AdamTReineke]

I can't figure it out. And I'm sure this is not how he's doing it, but could you potentially use water mixed with very fine metal particles and then use a bunch of small electromagnets turned on and off quickly to pull the water/metal mixture along the path?

[burgerbrain → AdamTReineke]

Even were that possible, that doesn't explain the impossible geometry.

[Lost_BiomedE → AdamTReineke]

I am unsure if you could do it that way, but the water is likely mixed with copper, judging by the color.

[MaMa → Lost_BiomedE]

Probably just blue dye to make it visible to the camera

[Lost_BiomedE → MaMa]

Agreed, it is likely for the camera. A lot of blue dyes for water fountains and such are copper sulfate. Dyes for tanks or fish ponds are increasingly methylene blue, food dye.

I thought I would just extend the poster's thought experiment, not imply that magnets were indeed used.