The deviously puzzling Sandfield brothers, Robert and Norman, designed their Salt and Pepper Shakers to exchange at IPP 22 held in Antwerp in 2002. 

Kamei created a number of “Love Box” puzzles shaped like little hearts.  No. 5 is a cute little piece in dark wood, with a bright yellow wood ribbon, and a red cloth lined secret compartment.

Japanese master Yoshio Okiyama, was a third generation secret-box maker who was taught by his father, Yoshitaro Okiyama, who in turn was taught by his father, Tatsunosuke Okiyama, one of the 3 original founders of this art form dating back to sometime after 1870.

Einstein first presented his theory of general relativity on November 25, 1915, in front of the Prussian Academy of Science, which makes this Thanksgiving season one with some serious gravity.  General relativity upped the ante from “special relativity”, which he introduced 10 years earlier, by adding acceleration to the mix.