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About PhysicsLab

PhysicsLab is a free physics education site. We publish original articles, working calculators and interactive games — from Newton's laws to quantum computing — written in plain language with the working shown.

Free forever

Everything on PhysicsLab is free. There is no account, no paywall and no login. You can read every article, use every calculator and play every game without signing up for anything.

How the site is funded

PhysicsLab is supported by advertising. You may see ads on some pages; they help keep the site free. We do not sell your data — we do not collect personal data at all. Your dark-mode preference and saved items live only in your own browser.

Accuracy

Every formula and worked example is checked against standard physics. If you spot a mistake, please tell us on WhatsApp and we will fix it.

What we are not

PhysicsLab is an independent education project. We are not affiliated with any university, textbook publisher or other physics website.