Quotes About Theory

To a physicist, beauty means symmetry and simplicity. If a theory is beautiful, this means it has a powerful symmetry that can explain a large body of data in the most compact, economical manner. More precisely, and equation is considered to be beautiful if it remains the same when we interchange its components among themselves.

Einstein's Cosmos

Aquí, estamos reorganizando las partículas de nuestras ecuaciones de manera que los fermiones se intercambian por bosones, y viceversa. Esto se convierte en el punto central de la teoría de cuerdas, así que todas las partículas del universo se pueden sustituir unas por otras.

CzÄ™sto siÄ™ twierdzi, ?e ze wszystkich teorii powstaÅ'ych w tym stuleciu najgÅ'upsza jest teoria kwantowa. Niektórzy uwa?ajÄ…, ?e na jej korzy?? przemawia wyÅ'Ä…cznie to, i? jest niepodwa?alnie poprawna.

Cuando alguien visitaba a Einstein en su casa, este les preguntaba: «¿Existe la luna porque un ratón la mira?». Pero, por mucho que la teoría cuántica violase el sentido común, algo había de verdad en ella: era experimentalmente correcta. Sus predicciones han sido corroboradas con hasta once decimales, lo que la convierte en la teoría más precisa de todos los tiempos.

We have not yet figured out why there is more matter than antimatter in the universe. Only one ten-billionth of the original matter in the early universe survived this explosion, and we are part of it. The leading theory is that something violated the perfect symmetry between matter and antimatter at the Big Bang, but we don't know what it is. There is a Nobel Prize waiting for the enterprising individual who can solve this problem.

En realidad, para crear un universo como el nuestro puede necesitarse una cantidad neta absurdamente pequeña de materia, quizá baste con 30 gramos.

A pesar de lo descabellado de la teoría de cuerdas, uno de los aspectos que la ha mantenido con vida es que combina satisfactoriamente los dos grandes pilares de la física, la relatividad general y la teoría cuántica, ofreciéndonos una teoría finita de la gravitación cuántica. De ahí viene todo el entusiasmo.

phrenologists

Quantum theory says that there must be quantum corrections to pure blackness, so black holes are actually gray. (And they emit a faint radiation called Hawking radiation.)

And there is no such thing as absolute zero, the temperature at which all motion stops. (Even as we approach it, atoms continue to move slightly, which is called the zero-point energy.)

So in addition to the Big Freeze and Big Crunch, a third alternative began to emerge from the data, the Big Rip, which is like the Big Freeze on steroids. It is a vastly accelerated time frame for the life cycle of the universe.

So this is one goal of modern physics: to create a quantum theory of gravity where the quantum corrections are finite and calculable. In other words, Einstein's theory of gravity allows for the formation of wormholes, which may one day give us shortcuts through the galaxy. But Einstein's theory cannot tell us if these wormholes are stable or not. To calculate these quantum corrections, we need a theory that combines relativity with the quantum theory.

Theoretical knowledge is not the exclusive domain of ivory tower intellectuals, but is, in fact, a crucial necessity of man's proper survival. Every bit of your mental contents is derived from some theory, and your success and happiness hinge on whether it is true or false, good or evil.

However, one theory is as good as another.

in our time art is encrusted with a noisy, opaque, logorrhea of theory that prevents a work from coming into direct, media free, non-interpreted contact with its viewer (its reader, its listener)

Wat linkse mensen links maakt is niet de ene of de andere theorie, maar hun vermogen welke theorie dan ook te integreren in de kitsch van de zogenaamde Grote Mars voorwaarts.

Keynes was a great economist. In every discipline, progress comes from people who make hypotheses, most of which turn out to be wrong, but all of which ultimately point to the right answer. Now Keynes, in The General Theory of Employment, Interest and Money,set forth a hypothesis which was a beautiful one, and it really altered the shape of economics. But it turned out that it was a wrong hypothesis. That doesn't mean that he wasn't a great man!

I read a lot of science books - I love cosmology, quantum theory, particle physics. So my idea of a great read would probably put you directly into a coma.

With Constant, the chief articulator of his generation's liberal ideas, we see the beginnings of classical liberalism's 'state-hatred,' which, after the 18th century's ambiguous attitude, marks its theory to the present day," noted modern libertarian and historian of classical liberalism Ralph Raico.

Libertarianism is based in economic theory, as economic science teaches how workable order can arise from the seeming chaos of free actions uncoordinated by a single outside intelligence, and how government intervention is apt to upset that balance.

And since, according to the big bang theory, the bang is what is supposed to have happened at the beginning, the big bang leaves out the bang. It tells us nothing about what banged, why it banged, how it banged, or, frankly, whether it ever really banged at all.

General relativity then establishes that objects move toward regions where time elapses more slowly; in a sense, all objects "want" to age as slowly as possible. From an Einsteinian perspective, that explains why an object falls when you let go of it.

Black holes don't just tell us about how black holes store information. Black holes inform us about information storage in any context.