Monday afternoon gifs

November 30, 2015 • 2:00 pm

by Matthew Cobb

Three tw**ted gifs for a Monday:

JAC: Readers should feel free to explain the last illusion.

16 thoughts on “Monday afternoon gifs

  1. Very cool. I am think that there will be circular motions of water under the surface, and it is those that pretty much cause the surface ripples.

  2. The glass with water is like a cylindrical lens (~1.3 water and ~1.5 glass). The empty glass is not really acting like a lens, but more like two sheets of glass with not much curvature (not planar-convex or planar-concave).

    1. Meaning that photons from the end-points of the arrow which travel through water are refracted such that their paths cross, thereby reversing the image.

  3. Those are effing brilliant! Thanks.
    Love the water gif – mind opening and I’ll have to show it to my kids.

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