Algodoo

Less demanding method of getting a Brachistochrone than FRA32´s lasercutter. Just press play and take your favorite color and flip it 180°.

For Explanation what a "Brachistochrone" is:
The Brachistochrone is a mathematical curve that represents the path taken by a frictionless particle sliding between two points in a uniform gravitational field in the shortest time possible. It was first solved by Johann Bernoulli in 1696 and has since been an important problem in the field of calculus of variations.