Physics Explained

Physics Explained is made by a physicist with a PhD in theoretical physics, specialising in string theory. He now spends most of his time on physics education.

The channel aims at independent learners who want the real mathematics, not just the headlines. Each long video builds an idea from first principles and places it in its historical setting. Topics include quantum mechanics, relativity, fluid dynamics and nuclear physics. The pace is steady and the derivations are shown in full.

Some highlights include:

An explanation of the ultraviolet catastrophe shows how a failure of classical physics led to quantum theory.

Einstein’s famous equation, E = mc squared, is derived step by step so viewers can see where it comes from.

The Schrodinger equation is built from first principles in a long, thorough lesson.

The channel has around 413,000 subscribers.

For students considering physics, aerospace or electrical engineering, this channel shows how much maths sits behind the subject. It is a good stretch beyond A level. A recent video building the Navier-Stokes equation from scratch is especially relevant, because those equations are central to fluid dynamics in engineering. The historical approach also shows that big ideas came from people working patiently through problems, often over many years. Students who enjoy proofs and derivations in maths will feel at home here, and the videos reward watching more than once with a notepad.