Here’s a terrific mathematical card trick that will impress your friends. When you do this trick, the effect of the...

Continue reading...# card trick

## Perfect Shuffles

We know from the Fun Fact Seven Shuffles that 7 random riffle shuffles are enough to make almost every configuration equally likely...

Continue reading...## Red-Black Card Trick

Here’s a pretty easy card trick that you can do that can also be pretty surprising. Here’s how the trick...

Continue reading...