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In this question, we're going to discuss the mechanism behind the fundamental particle interactions.
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As you hopefully know by now, there's four fundamental interactions.
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The electromagnetic, the strong interaction, weak interaction, and the gravitational interaction.
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And each of these interactions has a mediator, a particle that mediates the force, really what creates this interaction.
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So the way that it was first discovered was between charged particles, and that if you take a look at electromagnetic waves, they can be thought of as not just waves, but as a photon, an actual particle, quanta of the electromagnetic force.
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And it was discovered that electromagnetic phenomena can be modeled as an exchange of photon, a photon, a quantum between electrically charged particles.
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So for instance, if we have like an electron, maybe a proton, the positive charge, this attraction between them is an exchange of photons.
01:52
So that's why we call the photon, the mediator, for the electromagnetic interaction.
02:01
It's the mechanism behind that interaction...