Brachistochrone racer
An interactive simulator racing beads down curves — straight line vs. circular arc vs. the cycloid that beats them both.
Jul 28, 2026physicscs
Code, simulations, and worked problems — a “project” here is anything that got built or figured out.
An interactive simulator racing beads down curves — straight line vs. circular arc vs. the cycloid that beats them both.
If a lawn sprinkler sucks water in instead of spraying it out, which way does it turn? A worked solution with momentum accounting done honestly.
A tiny tool for collecting the notes you scribble in the margins of everything you read — sample external-link project, card only, no page.