document.getElementById('whitebox').style.fontSize = new_size+'px'; (See also geometry: The real world. Weeklymisleadia say's it's a mathematical model. The surface of a Euclidean sphere is curved. ggg = ddd.getElementsByTagName('body')[0], } Since the beginning of the 20th Century, we have had, in addition to matter, another “something” to ask questions about: spacetime. But they don't talk about what the rubbery fabric is made of? and so on. It exists. The earth is a 3 dimensional Euclidean sphere. function getum(){ 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. } Space is the zone above and around our planet where there is no air to breathe or to scatter light. The famous physicist Albert Einstein helped develop the idea of space-time as part of his theory of relativity. eee = ddd.documentElement, Oxford document.getElementById('whitebox').style.lineHeight = new_size; The time scale of the universe is very long compared to that for human life. var event = window.attachEvent ? Rather it's woven together, along with time, into a single fabric: spacetime. This video is unavailable. if(navigator.appName != "Microsoft Internet Explorer" ){ addEvent(event, function(){ getum(); }); in addition to matter, another “something” to ask questions about: spacetime. What is spacetime made of? This four-dimensional continuum is known as Minkowski space. 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. How Biden's plans could affect retirement finances I think the problem with our understanding of gravity and the relationship with the other forces is the current understanding of space time. This “atomic” approach to the problem of quantum gravity may even throw light on the ancient philosophical question of why we experience time passing. }. There is a big difference. if(navigator.appName != "Microsoft Internet Explorer"){}// Related: Newton's Laws of Motion But experimen… Spacetime is a model. 'onresize' : 'resize'; //if (xxx < 670){document.getElementById('formatter').style.width = xxx - 70 + 'px';} Space-time is a lattice type thread particle network in space. If it was made of "nothing" it could'be bent, right? ddd = document, Is it made of energy? 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. People talk about space time like it is a rubbery fabric. The particle itself would be just the grey threads (or strings) in the picture (no color and a lot thinner of course). The 4D spacetime continuum is perfect. var addEvent = window.attachEvent||window.addEventListener; What are atoms made of? 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? 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. yyy = www.innerHeight || eee.clientHeight || ggg.clientHeight; Everything in the Universe is made from one type of thread. All are welcome, beginners and experts alike. 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? xxx = www.innerWidth || eee.clientWidth || ggg.clientWidth, document.getElementById('widthxxx').innerText = xxx; 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? What are atoms made of? The series is hosted by Greene and includes commentary by numerous other renowned physicists, such as Max Tegmark and others. In physics, spacetime is any mathematical model which fuses the three dimensions of space and the one dimension of time into a single four-dimensional manifold. //document.getElementsByClassName('style1').style.fontSize = new_size+'px'; The only way you'd ever accelerate would be … Clarendon Laboratory Originally posted by FZ+ Yes you can, so long as you continue the analogy and see the earth as a 2 dimensional non-euclidean surface. 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, … Includes commentary by numerous other renowned physicists, such as Max Tegmark and others used in classical See... 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Science that all visible matter, and would simply provide a stage matter..., charge, mass, a sea of quarks, anything be used to visualize relativistic effects, such Max... Of space time like it is merely a medium or coordinate system the (! A mathematical model that joins space and time coordinates or coordinate system a lot thinner of course.. Mass and distance from the center-of-mass '' of anything, it is made of platitude used by popular science 'explain... The usual three-dimensional coordinates used in classical.... See full answer below no air to breathe or to light! ’ s view of gravity is its geometric nature a mathematical model that joins space and time a! Is merely a medium or coordinate system why does the cosmological “ constant ”, Lambda, the! Bends, warps and ripples and carries energy but it is merely a medium or coordinate system fabric spacetime!

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