Damn Good Cards, No. 8 __BOOK The cog and gear array

The cog and gear array sealed inside the glass cylinder falls to the bottom of the glass in exactly 3 or 5 minutes (depending on the size of the Oscilloglass)

" But if you're looking for an enormous mental challenge that can fit in your pocket

Though the design is centuries old

Hold the cube before a candle or dip it into a sunbeam to bathe the room in a shifting spectrum of light

and Pierre and Carmen find themselves on the case

Damn Good Cards, No. 8 __BOOK The cog and gear arrayIntroducing the latest back design in our ongoing series of Damn Good Cards. No. 8 features a bold one way pattern inspired by the Bauhaus art movement of the 1920s and packaged inside a minimal black and white tuck box. Whether you're a practicing cardist or a professional magician, Damn Good Cards feature tasteful designs printed on Thin Crushed stock for superior handling. 56 Regulation poker size playing cards with standardized faces, white