Quotes About Universe

time and space are intertwined. It is something like adding a fourth direction of future/past to the usual left/right, forward/backward, and up/down. Physicists call this marriage of space and time "space-time," and because space-time includes a fourth direction, they call it the fourth dimension.

Burada vurgulamak istediÄŸim ÅŸudur: kara delikler tamamen kara deÄŸildir. Daha önce zannedildiÄŸi gibi bunlar ebedi hapishaneler deÄŸildir. Kara deliklerden bir ÅŸeyler kaçabilir, hem bu evrene hem de belli bir olas?l?kla baÅŸka bir evrene. O zaman eÄŸer bir kara deliÄŸin içindeyseniz umutsuzluÄŸa kap?lmay?n, d??ar? ç?k?? olanakl?d?r!

Today we still yearn to know why we are here and where we came from. Humanity's deepest desire for knowledge is justification enough for our continuing quest. And our goal is nothing less than a complete description of the universe we live in.

The Aristotelian tradition also held that one could work out all the laws that govern the universe by pure thought:

we already knew that nothing could prevent a massive cold star from collapsing under its own gravity until it reached a singularity of infinite density. I realised that similar arguments could be applied to the expansion of the universe.

The success of A Brief History indicates that there is widespread interest in the big questions like: Where did we come from? And why is the universe the way it is?

our goal is nothing less than a complete description of the universe we live in.

Look up at the stars and not down at your feet. Try to make sense of what you see, and wonder about what makes the universe exist. Be curious.

time is not completely separate from and independent of space, but is combined with it to form an object called space-time.

can one have atoms in which the nucleus is a tiny primordial black hole, formed in the early universe?

Most laws of nature exist as part of a larger, interconnected system of laws.

Die wachsende Fähigkeit der Menschheit, das Universum zu verstehen, hat einen kleinen Winkel der Ordnung in einem zunehmend der Unordnung verfallenden Universum geschaffen.

There is a history of the universe in which England win the World Cup again, though maybe the probability is low.

This process is known as inflation, something that was good for the universe in contrast to inflation of prices that too often plagues us.

We were told that you can never get something for nothing. But now, after a lifetime of work, I think that actually you can get a whole universe for free.

At some point during our 13.8 billion years of cosmic history, something beautiful happened. This information processing got so intelligent that life forms became conscious. Our universe has now awoken, becoming aware of itself.

People have always wanted answers to the big questions. Where did we come from? How did the universe begin? What is the meaning and design behind it all? Is there anyone out there? The creation accounts of the past now seem less relevant and credible. They have been replaced by a variety of what can only be called superstitions, ranging from New Age to Star Trek. But real science can be far stranger than science fiction, and much more satisfying.

So what does this mean in our quest to find out if there is a God? It means that if the universe adds up to nothing, then you don't need a God to create it. The universe is the ultimate free lunch.

And at the end of all this, the fact that we humans, who are ourselves mere collections of fundamental particles of nature, have been able to come to an understanding of the laws governing us, and our universe, is a great triumph. I want to share my excitement about these big questions and my enthusiasm about this quest.

If the boundary condition of the universe is that it has no boundary in imaginary time, it won't have just a single history. There are many histories in imaginary time and each of them will determine a history in real time. Thus we have a superabundance of histories for the universe. What picks out the particular history, or set of histories that we live in, from the set of all possible histories of the universe?

We really don't care how many histories there may be that don't contain intelligent beings. We are interested only in the subset of histories in which intelligent life develops. This intelligent life need not be anything like humans. Little green men would do as well. In fact, they might do rather better. The human race does not have a very good record of intelligent behaviour.

I would like to speculate a little on the development of life in the universe, and in particular on the development of intelligent life. I shall take this to include the human race, even though much of its behaviour throughout history has been pretty stupid and not calculated to aid the survival of the species. Two questions I shall discuss are "What is the probability of life existing elsewhere in the universe?" and "How may life develop in the future?

THE ORIGIN OF THE UNIVERSE

Segundo algumas teorias, o universo que vivenciamos é apenas uma superfície quadridimensional em um espaço com dez ou onze dimensões. O filme Interestelar dá uma ideia de como isso funcionaria. Nós não veríamos essas dimensões extras porque a luz não se propagaria por elas, mas apenas pelas quatro dimensões do nosso universo.