A Quote by Edward Witten

Having those extra dimensions and therefore many ways the string can vibrate in many different directions turns out to be the key to being able to describe all the particles that we see.
Technically you need the extra dimensions. At first people didn't like them too much, but they've got a big benefit, which is that the ability of string theory to describe all the elementary particles and their forces along with gravity depends on using the extra dimensions.
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.
Just like an ordinary guitar string, a fundamental string can vibrate in different modes. And it is these different modes of vibration of the string that are understood in string theory as being the different elementary particles.
As far as extra dimensions are concerned, very tiny extra dimensions wouldn't be perceived in everyday life, just as atoms aren't: we see many atoms together but we don't see atoms individually.
One of the basic things about a string is that it can vibrate in many different shapes or forms, which gives music its beauty.
God does not have a fixed plan that he must carry out; on the contrary, he has many different ways of finding man and even of turning his wrong ways into right ways...The feast of Christ the King is therefore not a feast of those who are subjugated, but a feast of those who know that they are in the hands of the one who writes straight on crooked lines.
There is no one kind of thing that we 'perceive' but many different kinds, the number being reducible if at all by scientific investigation and not by philosophy: pens are in many ways though not in all ways unlike rainbows, which are in many ways though not in all ways unlike after-images, which in turn are in many ways but not in all ways unlike pictures on the cinema-screen--and so on.
String theory?[pause] It closed the conceptual gulp between relativity and quantum mechanics. It postulates that subatomic particles are not points, but strings, about one planck length long. The rate at which strings vibrate can generate the properties of all known particles. Huh? How did I know that?
As you say, the way string theory requires all these extra dimensions and this comes from certain consistency requirements about how string should behave and so on.
Now the smallest Particles of Matter may cohere by the strongest Attractions, and compose bigger Particles of weaker Virture.... There are therefore Agents in Nature able to make the Particles of Bodies stick together by very strong Attraction. And it is the Business of experimental Philosophy to find them out.
Traveling around, being able to see all those cities, being with all the fans. Different people, different ways of life - it was exciting.
I believe that this is the key, the principle itself is the key to conservatism. Because in many ways if you do not have a principled base you do not have policy and if you do not have policy in many ways you do not have an ideology.
I'm not afraid to express the different elements of my personality, and I think there's a bad habit in America now to, label people having multiple personalities, things like this, but it's, I feel like, even on the album I describe myself as a hydra which is, many heads, many different personalities.I don't think you need to be one specific person when you can be many.
The beauty of string theory is the metaphor kind of really comes very close to the reality. The strings of string theory are vibrating the particles, vibrating the forces of nature into existence, those vibrations are sort of like musical notes. So string theory, if it's correct, would be playing out the score of the universe.
Being someone who plays gigs and finding many, many memorable ones in different ways, I guess I'd have to say I don't really have a single favourite one that I could pick out.
There are many different ways of being funny. I'm not sure that there's so many different ways of being dramatic.
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