Math Animations on Instagram: "Fourier series is a mathematical concept to represent periodic functions as an infinite sum of sine and cosine functions with different frequencies or coefficients. It was introduced by Joseph Fourier in the early 19th century and is widely used in mathematics and applied sciences. Although the Fourier series has infinitely many terms, it converges to the original function under certain conditions. This convergence process makes it possible to simplify complex prob

Crucible History on Instagram: "This footage captures an extremely rare ocean phenomenon 🌊 Four separate wave systems converging into a single point at the exact same moment. Events like this usually happen far offshore and last only seconds, which is why they are almost never recorded. Scientists believe this kind of wave convergence is caused by a unique combination of seabed shape, wave direction, and timing. For surfers and researchers alike, witnessing it in real time is extraordinarily ra