We’ve seen many graphical and animated explainers for the Fourier series. We suppose it is because it is so much fun to create the little moving pictures, and, as a bonus, it really helps ...

A mathematical theorem stating that a PERIODIC function f(x) which is reasonably continuous may be expressed as the sum of a series of sine or cosine terms (called the Fourier series), each of which ...

Major Geological Events Seem to Follow a Rhythmic Pattern of 27.5 Million Years, Researchers Call It Earth’s ‘Pulse' Dozens of major geological events over the past 260 million years, from sea level ...