“And here there dawned on me the notion that we must admit, in some sense, a fourth dimension of space for the purpose of calculating with triples … An electric circuit seemed to close, and a spark flashed forth.” -Hamilton Quaternions have 4 dimensions (each quaternion consists of 4 scalar…

The heavens are filled with something fantastic. The night sky is relaxing to us no matter where we are in the world. According to Tumblr user Howard Arrington, the sky has more appealing things to give us: the planets’ Planetary Dance! He discovers that the planets in the heavens dance…