Our visit to Mind Mystery, a place featuring a few famous optical illusions and math puzzles museum in the Dutch province of Limburg was really impressive.
by the entrancethis was my favourite effect, it felt like we were trapped in the Interstellar Tesseract (amazing how beautiful sphere can be shaped by a little mirrored tunnel with an LCD screen on the back wall, the trick is that the tunnel was not rectangular but trapezium-shaped, Simon explained) and then Simon’s sister Neva lost touch with gravitythe only way to deal with that was to flip the whole building! and look there, at the back of the courtyard, isn’t that Penrose’s impossible triangel made possible?if you look through the peephole, the triangle’s vertices seem to be touchingahm… an Euler torus?and we have finally tried a mirror mazeSimon playing with the Towers of Hanoi, applying a new algorithm; when we got home, Simon actually wrote a Python program that spits out the solution for up to 9 disks!Upon coming home, Simon tried recreating one of the tricks he encountered at the museum, the 63-digit-number trick, and has discovered that the trick doesn’t always work!no matter how exciting Mind Mystery was, this slide was ranked as the top activity by the kids, together with a similar slide in the neighbouring swimming pool (in the
Geeks out of the box 