Phrase by 'Edward Witten'
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You have that one basic string, but it can vibrate in many ways. But we're trying to get a lot of particles because experimental physicists have discovered a lot of particles.
Author: Edward Witten - American MathematicianYou , Because , Get , Trying
In Einstein's general relativity the structure of space can change but not its topology. Topology is the property of something that doesn't change when you bend it or stretch it as long as you don't break anything.
Author: Edward Witten - American MathematicianYou , Long , Space , Change
It's indeed surprising that replacing the elementary particle with a string leads to such a big change in things. I'm tempted to say that it has to do with the fuzziness it introduces.
Author: Edward Witten - American MathematicianSay , Change , Big , Things
On the other hand, we don't understand the theory too completely, and because of this fuzziness of spacetime, the very concept of spacetime and spacetime dimensions isn't precisely defined.
Author: Edward Witten - American MathematicianUnderstand , Because , Theory , Hand
Quantum mechanics brought an unexpected fuzziness into physics because of quantum uncertainty, the Heisenberg uncertainty principle.
Author: Edward Witten - American MathematicianPhysics , Unexpected , Uncertainty
Quantum mechanics brought an unexpected fuzziness into physics because of quantum uncertainty, the Heisenberg uncertainty principle. String theory does so again because a point particle is replaced by a string, which is more spread out.
Author: Edward Witten - American MathematicianMore , Physics , Unexpected , Uncertainty
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