Cybernetic Art
May 27, 2022

Cybernetic Art

56 original one-of-a-kind artworks created by Ivan Moscovich in his home studio using an elaborate double-pendulum drawing mechanism of his design.

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Deadly Treasure
August 11, 2016

Deadly Treasure

A pirate captain presents his prisoner with eight golden coins and a challenge: if the prisoner can identify the single genuine gold doubloon in th...

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History of the Burr Puzzle
August 4, 2016

History of the Burr Puzzle

The "Burr," "Knot" or "Chinese Cross" is one of the oldest and most popular mechanical puzzles in the world. The origin of the puzzle is unknown bu...

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Fun with the Droste Effect
August 3, 2016

Fun with the Droste Effect

The "Droste effect" refers to the technique of creating a recursive image or, put more simply, a picture inside of itself. The Droste effect gets i...

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Fun with Zoetropes
August 2, 2016

Fun with Zoetropes

The Zoetrope or “wheel of life” is an analog animation device that predates the dawn of cinema. Invented by William George Horner in 1834, the mach...

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History of the Nine Dot Problem
August 2, 2016

History of the Nine Dot Problem

The nine dot problem is a classic lateral thinking exercise that gained widespread popularity in the 1970's and 80's. Participants are presented wi...

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