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Make: Technology on Your Time Volume 31 by Mark Frauenfelder

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ELECTRONICS: FUN AND FUNDAMENTALS

By Charles Platt, Author of Make: Electronics

THE CHING THING

You needn’t believe in divination to enjoy making this fortune-teller.

In my previous column I described an electronic version of that old fortune-telling favorite, the Magic 8 Ball (MAKE Volume 30, “Magic 8 Box”). Now I want to delve deeper into divination — and the deepest you can go is surely the I Ching. This tool of prophesy originated in China thousands of years ago.

The I Ching supposedly offers insight into your current situation, and how it may change in the near future. You use a random system to draw 2 “hexagrams,” each of which consists ...

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