At CERN, they're looking for hints of new physics, like extra dimensions. If I knew these laws, then I could use them to answer questions like: How was the universe created? Where did it come from? What happens inside a black hole? Can I make a time machine to get backwards in time? By finding these ultimate laws, I can answer the deepest questions that we know about the universe.Īstro- and particle physicists are in the midst of something of a golden age. Quantum physics - with random fluctuations - is occurring all the time, everywhere, on small scales.Īnd relativity describes the warping of time and space, usually on very large scales. They, in some cases, should arise from a marriage or unification of quantum physics with Einstein's relativity physics. I'd like to know the laws of quantum gravity - the laws that are more fundamental than any other set of physical laws that we're aware of. If you could ask an omniscient alien just one question, what would it be? But at the present all the evidence we have suggests that it's correct. So at least we can have some hope of studying the birth of the universe, that one kind of singularity. What about cosmic censorship, which states that scientists will never look through the horizon of a black hole.Ĭosmic censorship says that all singularities - places where gravity becomes infinitely strong - occur only inside black holes (except the big bang singularity when the universe was born). And that is the singularity that the character Cooper encounters in the movie "Interstellar." So if you are going to encounter a singularity, that's what you should encounter. And that is probably the most gentle of the singularities. Some of it, just a tiny fraction, is scattered back at you. And this is caused by all the stuff that fell into the black hole before you did. That was discovered just a couple of years ago. And because of the compression of time inside a black hole, what falls in after you and over billions of years comes down on you in a fraction of a second - and in a sheet of energy that you don't want to encounter. ![]() It's coming down at you behind you very rapidly. One of them, that I like to call an in-falling singularity, is understandable in this way: If you fall into a black hole in order to experience the singularities, everything that falls in after you over the entire life of the universe is seen by you. More recently, it's been discovered that there are two other singularities. And then it will stretch in one of those other and squeeze in two directions - briefly. And it will stretch your body in one direction, while squeezing it in two other directions briefly. And this chaotic stretching and squeezing will take your body as you approach that singularity. It's a singularity in which there's a chaotic oscillation of the stretching and squeezing of space, what we call tidal force (like the forces by which the moon raises the tide on the earth's oceans). One of them is very violent, very lethal. Kip Thorne: What we know is this: There are three singularities inside a black hole.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |