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? asked in Science & MathematicsPhysics · 9 years ago

Strings and Branes Question?

Im reading a few books about Strings. From what I understand, a quark, for example, is a vibrating string or brane. This confuses me. Allegedly, the size of the string is 10 -35m, but the quark is 10 -18. How is the string so much smaller than the quark if the quark is a string? Obviously Im missing something, but all the searching on the internet leads me nowhere.

Im not a student, so I dont have anybody to answer my questions.

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  • 9 years ago
    Favorite Answer

    The quark as a particle includes its radius of interaction with other quarks - always grouped. The string itself doesn't have to be as large, just as a nucleus is larger than the proton or neutron inside of it.

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