A deck of cards may not seem special, and a deck really isn't special until you give it a good shuffle. That is where a deck ...

requires seven shuffles to randomize a 52-card deck. Laying cards face-down on a table and mixing them by pushing them around (a technique researchers dubbed “smooshing”) requires 30 to 60 ...

He left behind the three cards. I palmed them into my pocket. It was the beginning of my yearlong hunt for one full deck of found playing cards. I created the rules. I had to find the cards on the ...