Math explains the best way to shuffle a deck of cards and why

Everyone who has played poker or even Go Fish knows the basics of shuffling cards. There's the riffle shuffle (combining two halves of a decks and making a bridge), overhand shuffling (quickly splicing cards from the deck back into the deck) and regular ol' mixing all the cards up on a table. Which way is the best? » 3/23/15 12:58pm 3/23/15 12:58pm

Genius app instantly solves math problems by using a phone's camera

I've seen the future and it is math less and it is awesome and it is this PhotoMath app that solves math problems just by pointing your phone's camera at them. It's like a cross between a text reading camera, a supremely sophisticated calculator and well, the future. Point and solve and never do math again. » 10/21/14 8:49pm 10/21/14 8:49pm

The sum of 1 + 2 + 3 + 4 + 5 + ... until infinity is somehow -1/12

Here's a fun little brain wrinkle pinch for all you non-math people out there (that should be everyone in the world*): the sum of all natural numbers, from one to infinity, is not a ridiculously big number like you would expect but actually just -1/12. Yes, the sum of every number from one to infinity is some weird… » 1/16/14 7:18pm 1/16/14 7:18pm

Here's an Amazing Card Trick Bet You Will Always Win

The beauty of math and numbers and formulas and equations and so forth is that they can work without you ever understanding how the hell they work. What seems like complete randomness is actually just a math problem! Like this slick trick with a deck of cards. Take twenty or so cards and flip over five cards face… » 10/29/13 5:06am 10/29/13 5:06am

A Former Subway Worker Made a Breakthrough Discovery in Math

A completely unknown guy in the world of math has made a breakthrough discovery that will help us understand numbers better. Basically, a guy who once struggled to find a job and had to work at Subway, is helping math geniuses understand the twin prime conjecture, one of math's oldest problems. » 5/20/13 10:13pm 5/20/13 10:13pm