the.com/equation
the universe's way of saying both sides better agree or nobody leaves
oldest oneBabylonians solved quadratics 4,000 years ago, no algebra yet
equals signInvented in 1557 because writing 'is equal to' got tiring
famous fiveEuler's identity links e, i, pi, 1, 0
einsteinE=mc squared made mass and energy the same thing
unsolvedNavier-Stokes equations carry a million-dollar prize