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93tomb (November 30, 1999 at 12:00 am)
There are two things you need to know for the first five minutes. You need to know about quantum-mechanical spin, and mass-energy equivalence. I can't explain in 500 characters I'm afraid, but don't give up. Go read some Feynman. Find out about the standard model of particle physics. Get comfortable dealing with concepts that no-one can properly comprehend.
93tomb (November 30, 1999 at 12:00 am)
Close, but no cigar :P In theory, yes, you could pull two quarks apart the width of the universe without breaking the 'string'. But, as you rightly assert, the energy contained within the connection grows. However, conservation of energy is not violated. The mass energy in the string comes simply from the work you would have to put in pulling the quarks apart. The energy involved is why you don't see the strong force acting on those scales; the quarks are too tightly locked together.
astriedinger (November 30, 1999 at 12:00 am)
sorry before minute 29
astriedinger (November 30, 1999 at 12:00 am)
I am not a physicist, But If I am rigth, then in minute 29, when he explains the string never stops enlarging if "pulled out", it sets the basics of why universe is ever expanding. But then if more particles or whatever is in between is created or holds the field to maintain both ends linked together, what happens to the energy of this connection, if energy is constant in the universe?. It seems to my understanding that this explanation may suggest that in reality energy is not constant....?
sulfuric72 (November 30, 1999 at 12:00 am)
I was not paticularly impressed with his lack of recognition for others work and willingness to diminish the findings of his predecessors but alas no man is perfect.
wasdcontrols1 (November 30, 1999 at 12:00 am)
I too understand this, I am still partially in my father's ballsack.
ihungrynica (November 30, 1999 at 12:00 am)
If you're not interested in this, then your part of the problem of laziness and stupidity in this country.
jnotary (November 30, 1999 at 12:00 am)
He is widely regarded as one of the fathers of string theory,having, with Yoichiro Nambu and Holger Bech Nielsen, independently introduced the idea that particles could in fact be states of excitation of a relativistic string. He was the first to introduce the idea of the string theory landscape in 2003... so he may have a good idea of what he is talking about
wellpastcaring (November 30, 1999 at 12:00 am)
This lecture series is designed for people who have a good grounding in physics, including particle physics and the basics of quantum mechanics. It is not a beginner's course. Go back a step or two. Nothing is difficult when you're ready for it.
jonaswox (November 30, 1999 at 12:00 am)
If you cannot understand the first five minutes .................. then you dont care! |
