Follow your curiosity

What discovery has been shared with you?

FACTREE gives you something interesting to discover every day — and something worth talking about together.

Start with one fact. Explore it, go deeper, then follow whichever branch catches your imagination.

Choose subjects for a surprise

Exploring any topic

Begin your discovery

Your next discovery is one click away.

Choose one or more subjects above, or leave Any Topic selected and let curiosity decide.

Physics

Hamiltonian Mechanics

Quick fact

Hamiltonian mechanics was developed by William Rowan Hamilton in 1833, and it later became the basis for the Schrödinger equation in quantum mechanics.

Why this is interesting

You know how planets orbit the Sun, but have you ever wondered if there's a way to predict their paths without ever calculating forces? Hamiltonian mechanics does exactly that—it describes motion purely through energy.