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The Strong Nuclear Force

This week one of my students was quizzing me about the strong nuclear force; here’s a short YouTube clip of the mighty Brian Cox outlining its role in the nucleus:

There’s more to it than that of course, and in particular – depending upon your A level physics course – you may also need to learn certain key points such as its range, behaviour, the particles it affects, relative strength compared to other forces, and so on.

That said, perhaps the single most important thing to appreciate first of all is that without it, as Brian says in the video, atomic nuclei would just fly apart due to the electrostatic repulsion between neighbouring protons; the presence of the strong force therefore explains how nuclei can exist at all!

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