You may have heard about Baader-Meinhof Phenomenon before. In fact, you probably learned about it for the first time very recently. If not, then you just might hear about it again very soon. Baader-Meinhof is the phenomenon where one happens upon some obscure piece of information– often an unfamiliar word or name– and soon afterwards encounters the same subject again, often repeatedly. Anytime the phrase “That’s so weird, I just heard about that the other day” would be appropriate, the utterer is hip-deep in Baader-Meinhof.

Sometimes you just need a good, simple, flat pattern in Photoshop. A plain ol’ grid, or something to give the design a bit of textural “oomph” but without the cheesiness of a full-on seamless photo. Presenting Flatterns, pixely patterns I made just for you.

This is androidpatterns.com, a set of interaction patterns that can help you design Android apps. An interaction pattern is a short hand summary of a design solution that has proven to work more than once. Please be inspired: use them as a guide, not as a law.

The Ulam spiral, or prime spiral (in other languages also called the Ulam cloth) is a simple method of graphing the prime numbers that reveals a pattern. It was discovered by the mathematician Stanislaw Ulam in 1963, while he was doodling on scratch paper at a scientific meeting.