This classic short documentary from 1977 helps viewers conceptualise the relative sizes of things in the Universe.
Powers of Ten begins with a one meter wide scene viewed from a distance of one meter. Every ten seconds the camera zooms in or out by a factor of ten. It seamlessly transitions from galactic vistas to scenes rendered at sub-atomic scales. It’s twenty years since I first saw this film and I still find it breathtaking.
The film has been remade several times. Here’s an impressive recent version from the Imax film Cosmic Voyage. Morgan Freeman provides the voiceover.
… and the obligatory Simpson introduction.