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Why does the strong force have little effect on large everyday objects?

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The strong force does not have a significant effect on large, everyday objects primarily because of its extremely limited range. While it is the most powerful of the four fundamental forces, its influence is confined to a distance of approximately 10−15 metres, which is roughly the diameter of an atomic nucleus.12

Because this range is so incredibly small, the strong force cannot act across the macroscopic distances that define our daily lives. In contrast, forces like gravity and electromagnetism have an infinite range, allowing them to govern the interactions of large-scale objects and structures throughout the universe. Furthermore, the strong force only acts on particles that possess a property known as "colour" charge, such as quarks. Since everyday matter is composed of "colourless" combinations of these particles, the strong force is effectively contained within the nucleus, binding protons and neutrons together while remaining imperceptible in the macroscopic world.12