Applied Physics Guides

Physics that pays for itself.

Physics at home

A practical guide to using thermodynamics, levers and friction to save hours and hundreds of euros a year in an ordinary household.

Physics of money

Your energy bills are physics equations with price tags, and the deepest financial concepts — compounding, efficiency, entropy — behave like physical laws.

Physics for business

Bottlenecks are flow physics, UX friction is real friction, and the AI race is thermodynamics.

How fast you fall

Why falling bodies stop speeding up: the free-fall equation, the terminal-velocity formula, what the 120 mph skydiving number means, and how to compute both.