Factorization diagrams are representations of numbers made up of dots that are organized according to factors. Brent Yorgey, a Ph.D. student, came up with the idea. Then Stephen Von Worley created this fascinating tool, a promenade of primes, composites, and their constituents, which are arranged with an aesthetically-tuned variation of Yorgey’s rules and displayed one at a time one prime per second.

Sounds of Mars
Grab your headset, turn up the volume and listen for the subtle differences between the sounds on Earth versus the sounds of Mars.