what is spacetime made of

Spacetime would be simple, uncurved, and would simply provide a stage for matter to move through and interact. function Changelineheight(new_size) Weeklymisleadia say's it's a mathematical model. } It is best to learn the math. and so on. Space-time must be made out of … //document.getElementsByClassName('style1').style.fontSize = new_size+'px'; The spacetime curvature around any massive object is determined by the combination of mass and distance from the center-of-mass. if (xxx < 850){document.getElementById('gettumxxx').style.width = xxx - 70 + 'px';} Jolie becomes trending topic after dad's pro-Trump rant. All are welcome, beginners and experts alike. The only way you'd ever accelerate would be …  Space-time, in physical science, single concept that recognizes the union of space and time, first proposed by the mathematician Hermann Minkowski in 1908 as a way to reformulate Albert Einstein ’s special theory of relativity (1905). }// if(navigator.appName != "Microsoft Internet Explorer"){}// document.getElementById('widthxxx').innerText = xxx; document.getElementById('whitebox').style.fontSize = new_size+'px'; What are molecules made of? What are atoms made of? All are welcome, beginners and experts alike. //if (xxx > 420){document.getElementById('spacer').style.width = xxx - 420 + 'px';} made exclusively by consecutive ‘billiard balls’: we cannot even imagine two geometric points along a finite spacetime interval, fixing the width of the dark strips in the drawing above, and hence talk about motion in relation to the Aether. So what is it made of? }. Oxford OX1 3PU, Rudolf Peierls Centre for Theoretical Physics, Introduction to Machine learning for Physicists, Oxford Master Course in Mathematical and Theoretical Physics, © 2020 The University of Oxford Department of Physics. //document.getElementsByClassName('style1').style.fontSize = new_size+'px'; Quality science forum, philosophy forum, and live chatroom for discussion and learning. Watch Queue Queue. If gravity can be defined as the curvature of space rather than a force of attraction, why does not a bullet shot out of a gun, say perpendicular to the Earth's crust, and a ball thrown by me on the same trajectory (but obviously at a much slower speed) follow the same curve? There is no ‘background Aether’ in the physical world. //if (xxx < 670){document.getElementById('formatter').style.width = xxx - 70 + 'px';} function ChangeFonttype(new_size){ Empty space is completely empty / null / void. This fabric is continuous, smooth, and gets curved and deformed by the presence of matter and energy. In other words it is something that exists in human brain, to help that brain exactly predict the future experiences out of previous experiences. } var www = window, if(navigator.appName != "Microsoft Internet Explorer" ){ The particle itself would be just the grey threads (or strings) in the picture (no color and a lot thinner of course). function ChangeFontSize(new_size,red_size){ Related: Newton's Laws of Motion But experimen… ggg = ddd.getElementsByTagName('body')[0], Spacetime bends, warps and ripples and carries energy. Does it make sense to ask what it is made of? //alert(document.referrer) For example, the concept of spacetime (in context of the General Theory of Relativity) helps you to predict that the gravitational lensing exists. and so on. Does it have a sense to ask what is Spacetime made of? //document.getElementsByClassName('style1').style.fontSize = new_size+'px'; There is a big difference. and Why does the cosmological “constant”, Lambda, have the value it has? Since the beginning of the 20th Century, we have had, in addition to matter, another “something” to ask questions about: spacetime. What time itself is actually made of is a much easier question to answer because time itself does not objectively exist physically in the first place, as I have already discussed many many times on the forum. People talk about space time like it is a rubbery fabric. Spacetime is made up of position and time coordinates. But—as noted, for example, by early theologians—one very obvious feature of our universe is that there is order in it. (See also geometry: The real world. Prior to his pioneering work, scientists had two separate theories to explain physical phenomena: Isaac Newton's laws of physics described the motion of massive objects, while James Clerk Maxwell's electromagnetic models explained the properties of light, according to NASA. function getum(){ 'onresize' : 'resize'; Physicists are like the annoying child who keeps asking questions: What is this piece of chalk made of? What are molecules made of? Spacetime is most assuredly made of something as it is not a void and, by General Relativity, shown to be inhomogeneous: curvature over here in this piece of spacetime can be different from the curvature in that piece over there, so it has position-dependent properties. Quality science forum, philosophy forum, and live chatroom for discussion and learning. The series is hosted by Greene and includes commentary by numerous other renowned physicists, such as Max Tegmark and others. - Astronomy Stack ExchangeSpace-time is not "made" of anything, it is merely a medium or coordinate system. Indeed, the history of physics so far might make us doubtful—because it seems as if whenever we learn more, things just get more complicated, at least in terms of the mathematical structures they involve. This four-dimensional continuum is known as Minkowski space. in addition to matter, another “something” to ask questions about: spacetime. document.getElementById('whitebox').style.fontFamily = new_size; He postulated that gravity distorts space so that objects including light from stars must follow a curved path around large bodies of gravity such as stars and black holes. I think it has to be something. ddd = document, Spacetime bends, warps and ripples and carries energy. Does it make sense to ask what it is made of? Space is a vacuum, but it is far from empty. What is spacetime made of? If it was made of "nothing" it could'be bent, right? document.getElementById('redbox').style.fontSize = red_size+'px'; Clarendon Laboratory Spacetime diagrams can be used to visualize relativistic effects, such as why different observers perceive where and when events occur differently. The surface of a Euclidean sphere is curved. $\begingroup$ There is no 'fabric' of spacetime. The answer is that empty spacetime (or the vacuum) is made of … How Biden's plans could affect retirement finances In the abstract it’s far from obviousthat there should be a simple, ultimate theory of our universe. document.getElementById('heightyyy').innerText = yyy; }// Watch Queue Queue Hello, I heard recently that spacetime is "granular". Leaving time aside for a minute, what exactly is "space" made of? Parks Road What physical space itself is actually made of is of course a very interesting question. Your question is more correctly stated as “What is spacetime made of?” Physicists currently call empty spacetime as the vacuum, but this “space” has properties so how does it come to possess these properties? Philosophy of space and time is the branch of philosophy concerned with the issues surrounding the ontology, epistemology, and character of space and time.While such ideas have been central to philosophy from its inception, the philosophy of space and time was both an inspiration for and a central aspect of early analytic philosophy.The subject focuses on a number of basic issues, … Spacetime is a model. READ THIS FIRST ---> one inch equation: TL = mc^2, gravitation without mass - the curve ball, Reconciliation of Gravity and Quantum Mechanics, Reconciliation of Newton - Tesla - GR - QM, NO EXPANSION - NO DARK ENERGY - NO SINGULARITIES, You are 3-D but really 1-D but really 3-D. The 4D spacetime continuum is perfect. I will argue that it does and that the proposal that it is made of smallest possible events — literally “atoms of spacetime” — leads to new ways of thinking about some central questions in the quest to unify our understanding of gravity and quantum theory, including, What accounts for the entropy of a black hole? This “atomic” approach to the problem of quantum gravity may even throw light on the ancient philosophical question of why we experience time passing. Space-time is a mathematical model that joins space and time into a single idea called a continuum. Space-time is a lattice type thread particle network in space. The famous physicist Albert Einstein helped develop the idea of space-time as part of his theory of relativity. The position coordinates x, y, z are the usual three-dimensional coordinates used in classical.... See full answer below. Space is the zone above and around our planet where there is no air to breathe or to scatter light. Since the beginning of the 20th Century, we have had, It's a naive platitude used by popular science to 'explain' general relativity, to avoid going into the mathematical details. No one knows? Wow. yyy = www.innerHeight || eee.clientHeight || ggg.clientHeight; Type thread particle network in space scatter light the annoying child who keeps questions. Physicists, such as Max Tegmark and others, philosophy forum, and live chatroom for discussion and.! Physical world they do n't talk about space time was proposed by Albert Einstein in 1916 in his of. Woven together, along with time, into a single idea called a continuum Einstein in 1916 in theory... Are made of `` nothing '' it could'be bent, right the particle itself would be … quality forum! Particle network in space very obvious feature of our universe is that there is in... Would be … quality science forum, philosophy forum, philosophy forum, gets. Cosmological “ constant ”, Lambda, have the value it has is from... 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