? ? ? ?Hello, here are my introduction of dimensions. I believe you coming here all know some of dimensions. The one dimension is a point and its extended type: the line. (Maybe someone will divide them into two dimensions, this is a new and another definition. ) , the two dimensions are two lines cross at one point and make up a plane. Then there comes three dimensions, it has two different but actually same definitions. The first is the extension?of definition of two dimensions that two planes cross at a line making up the three dimensions, and the other, I think its more graphic but a little hard to understand, is that we bend a plane make it cross then we get a three dimensions. This needs some abstract ability of you, but this definition could help us understand how and why we can do much more things even time travel, which we will mention in following.

??????Next, let's go further, we now all know the forth dimension is "Time" , by the dedication of the most famous physicist Einstein in the beginning of 20th century. His "Special theory of relativity" explains for us that time is different for every observer, it's relative. And his next theory the ?"General theory of relativity" tells us an extended level of time that it can be bended by gravitation. The function of ''Forth dimension'' is just like making a point continuously move then we get a line, it makes the space do the same thing that let it move. And there's an analogy which can maybe help you understand these: you can image a process that from your birth to your death, place all your photos of each day of your life on a line, with your growth, we can get a worm-liked convex channel, and it contains all your time of your life (Maybe I should correct the time unit in front) , this is what we call ''Four dimensions'' . And here I have extraneous words to say, actually in the physic, you can add any physical quantities to three dimensions then you could get a ''four dimensions'' whether you add temperature, pressure or other quantities. The four dimensions not only represents the research of how time and three dimensional space love or kill each other, ?but also contains other calculations. If you want to learn more, just go to WIKI this, and even though, the special theory of relativity is still the most common and meaningful thing for you to research, and there are also many attractive things I didn't contain in my introduction waiting you to explore.

???????And the next is ''Five dimensions'' , it needs more imagination and if you feel difficult or boring, you can stop to do any other things at anytime. To introduce the ''Five dimensions'' , we need to use the ''worm'' from four dimensions, as we all know, one road can and just can lead you to one destination, and, one worm can just represent one kind of your life. But we have many choices to choose from in our life, everything is possible, you can maybe become a chef, maybe a teacher or an engineer, and maybe you would make some pleasurable choices making your life happy, maybe in the contrary you made some disappointed ones leading you to be upset. Then, we put these long or short, satisfied or disappointed worms together, we get the five dimensions. The exact way of ''putting them together'' is same as before, we regard the four dimensions (the worm) as a line and five dimensions is just making the four dimensions cross into a plane. For this definition, in the five dimensions, time is a substance because five dimensions contains every your moment of every your choices. And if you'd like to have a view of five dimensions , you can see ''Interstellar'' , a film which its leading role has dropped into a five dimensions at the ending. The director used the most advanced technology of filmmaking and invited a famous modern physicist Kip Thorne to design the model of five dimensions. It's a very good film and I believe you can get a excited view of five dimensions.

??????We're not going to stop here, in prevailing physic, there're eleven dimensions existing. The next we're talking about is the six dimensions. And let's make the speech easier and shorter, you have known that five dimensions is like a plane ,it contains all your possibilities and others', too. Then let's bend this plane making it become three-dimensional, that's a six dimensions, and here comes what is pleasurable and attractive: if you are in a space of six dimensions, you'll be able to visit ''another yourself'' , an another yourself of another choice caused but not of another world. This means, emm, let's set a scene, your wife or your mother asks whether you like chicken or beef for supper, the chicken has a little parasite in it but fortunately you choose the beef, in six dimensions, you will be able to meet a poor yourself with parasite infected and tell him: ''Hey man, you were supposed to choose beef, like me. '' What's more, it's certain that you can travel to the past and visit the past yourself. This is very magical and attractive for that you could know almost all consequences of your one move and even at the same time, before you do this move, and you can make time travel, too. Can't image, right? And maybe you will feel uncertain of how we could do this. Now just think yourself as an ant, you're traveling on a plane which actually is our five dimensions, and the plane is bended, we are now traveling on a cylinder, we can get to any time or any another-choice world and these all depend on how the plane is bended.

???????And as to the rest dimensions, we continue to using the way of evolving three to six dimensions to image them, first, we regard the six dimensions as a point then make it move continuously into a line, here we get the seven dimensions, a little shocked, right? The explanation of it is that the six dimensions contains all your possibilities and others', whether a human or a single chair here, these make up a single but complete world, now we regard it as a point and lengthen it making it become developing as what we said above, then comes the pivot, according to the theory of ''Multi universe'' , there are many other ''Parallel worlds'' existing, and you can know that one seven dimensions line represent one parallel world, the seven dimensions just means that many worlds pile up together. Then the eight dimensions is very simple to image, we get a world plane. And the nine dimensions is to bend the plane of which can make you travel to another parallel world. Then the ten dimensions is a sum of all dimensions, we regard the nine dimensions as a point, and this point is the ten dimensions, it actually contains the all possibilities.

???????And as to eleven dimensions, it is a new research result, it talks about the existence, and is related to the ''M theory'' , which is maybe the ultimate theory of all physical theory. It's still under researching and need more abstract thoughts to both introduce and understand, so we aren't going to talk about it here. And today's introduction is just one way of one form of dimension introductions, if you want to learn more and find another form, go and have you own research!

????????Now we finished introducing the prevailing dimensional theory, I believe it has renewed your views. Thank you for your reading.