TED-Ed
Fractals and the Art of Roughness
Roughness is everywhere, contributing to the incredible complexity of the world around us. This complexity, however, is not without it's own unique sense of order. Join world-renown mathematician Benoit Mandelbrot as he looks at numerous...
MinuteEarth
Why Do Rivers Curve?
Rivers flow downhill, but why are there so many curves? The video explains how a straight river with only a tiny change begins to curve. It introduces the patterns all curving rivers follow all over the planet and other planets.