Quotes About Physics

philosophy is dead. Philosophy has not kept up with modern developments in science, particularly physics. Scientists have become the bearers of the torch of discovery in our quest for knowledge.

Fizica cuantic? ne spune c? oricât de am?nunÈ›ite ar fi observaÈ›iile noastre asupra prezentului, trecutul (neobservat), la fel ca viitorul, e nedefinit È™i exist? doar ca un spectru de posibilit??i. Conform fizicii cuantice, universul nu are doar un singur trecut sau o singur? istorie.

La física cuántica es un nuevo modelo de la realidad que nos proporciona una imagen del universo que en muchos conceptos fundamentales para nuestra comprensión intuitiva de la realidad carecen de significado.

I would see the end of physics as we know it, but now I think the wonder of discovery will continue long after I am gone. We are close to some of these answers, but we are not there yet.

and energy, it would have taken an infinite amount of energy to get it there. For this reason, any normal object is forever confined by relativity to move at speeds slower than the speed of light.

As far as we are concerned, events before the big bang can have no consequences, so they should not form part of a scientific model of the universe. We should therefore cut them out of the model and say that time had a beginning at the big bang.

The laws of physics demand the existence of something called 'negative energy'.

A black hole is a region where gravity is so strong that light cannot escape.

black hole has a boundary called the event horizon. It is where gravity is just strong enough to drag light back and prevent it from escaping.

Namun teori relativitas memaksa kita mengubah secara mendasar gagasan kita mengenai ruang dan waktu. Kita harus menerima bahwa waktu tidak sepenuhnya terpisah dari ruang, tapi malah berpadu dengan ruang untuk membentuk objek bernama ruang-waktu (space-time).

If you fall towards a black hole feet first, gravity will pull harder on your feet than your head, because they are nearer the black hole. The result is that you will be stretched out lengthwise, and squashed in sideways. If the black hole has a mass of a few times our Sun, you would be torn apart and made into spaghetti before you reached the horizon.

Stephen Hawking

What came before the Big Bang? According to the no-boundary proposal, asking what came before the Big Bang is meaningless—like asking what is south of the South Pole—because there is no notion of time available to refer to. The concept of time only exists within our universe.

In physics the smallest doll is called the Planck length and is a millimetre divided by a 100,000 billion billion billion.

Mungkin saja ada antidunia dan antimanusia yang terbuat dari antizadah. Tapi kalau Anda bertemu anti-Anda, jangan berjabat tangan! Kalian berdua bakal lenyap menjadi kilatan cahaya.

Stephen Hawking

We thus have experimental evidence both that space-time can be warped (from the bending of light during eclipses) and that it can be curved in the way necessary to allow time travel (from the Casimir effect).

I used to have a bumper sticker that read Black Holes are out of sight on the door of my office in DAMTP [Department of Applied Mathematics and Theoretical Physics, Cambridge]. This so irritated the head of the department that he engineered my election to the Lucasian Professorship, moved me to a better office on the strength of it, and personally tore the offending notice off the door of the old office.

While physics and mathematics may tell us how the universe began, they are not much use in predicting human behavior because there are far too many equations to solve.

Le désordre augmente avec le temps parce que nous mesurons le temps dans la direction où le désordre augmente. Qui dit mieux ?

In science, fact can only mean confirmed to such a degree that it would be perverse to withhold provisional assent. I suppose that apples might start to rise tomorrow, but the possibility does not merit equal time in physics classrooms.

Thus, physics and astronomy relegated our world to a corner of the cosmos, and biology shifted our status from a simulacrum of God to a naked, upright ape.

I became a physicist to understand the world, then I became a writer to try and change it.

It should be possible to explain the laws of physics to a barmaid.