James Fodor

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3,084 appearances 4 recordings 1 series first heard Jun 2026 last heard 30 Aug

James Fodor’s voice in public audio — every appearance, attributed to the second.

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Recordings per month over the last 12 months — 4 in all, peaking in Aug 2026 with 2.

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The Science of Everything Podcast · Episode 163: The Standard Model of Particle Physics · 8 Aug 2026 podcast

Now it's important to understand that while this term colour has historical origins and it's sort of roughly

Stands in analogy to how the primary colors all combine to give something that's colorless, that's white.

So red, green, and blue, you combine those together, they give white.

Likewise, if you combine a red quark, a green quark, and a blue quark, you get a composite particle which is colorless.

So they kind of all cancel each other out if you like.

You know, just like if you have a positive and a negative electric charge, they form something that's electrically neutral.

Likewise, you need to have one of each color to form something that is.

uh colour neutral or colourless.

So that's where the name originates from.

It's the sort of analogy with you combine the three colours together and you get something that's white or colourless.

But bear in mind that quarks are too small to be visible and they don't they don't s individually scatter light of any particular frequency.

So they don't have a colour in the way that we think about it.

It's not a physical visible colour.

It has nothing to do with

do with um the the colour spectrum or anything like that.

It it's it's just uh it's just a name that is a a you a loose analogy to the the primary colours combining to give something that's colourless.

So quarks, as I was saying, are the major type of particles that are affected by the strong nuclear force because they have a color charge.

Quarks are the type of particle that make up protons and neutrons.

So as I said earlier, uh once it was discovered that all of the positive charge of an atom is concentrated in the small nucleus at the center, it was pretty clear that there must be some new force that keeps those.

positive charges together because the electromagnetic force would tend to push them apart.

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