twin paradox explained

twin paradox | physics | Britannica The Twin Paradox: The Equivalence Principle Analysis Some background. According to Einstein's theory of relativity, the traveling twin should return younger than his brother—strange but true. Amber Stuver: Einstein's twin paradox explained | TED Talk ... According to special relativity, when the twins meet, the traveler twin has aged much less than the Earth twin. At the age of 20, A becomes an astronaut and he gets a chance to go to space, where on the other hand at this age B is a successful businessman. Last week's lesson was time dilation, and you . AS MAXIMS GO, Time is relative may not be quite as famous as . The classic twin paradox is "explained" because there is acceleration, but in the following version of the twin paradox there is no acceleration and I do not see how the dilation of time could be explained. So as promised I fully explain: Why leng. The twin paradox theory is a special relativity thought experiment involving identical twins, one of whom travels into space in a high-speed rocket and returns home to discover that the twin who stayed on Earth has aged more. ELI5: [Theory of relativity] - The twin paradox. Applications of Special Relativity: The Twin Paradox ... 3 $\begingroup$ The key to the twin paradox is that the travelling twin switches inertial frames, but the other twin stays in one frame. In both frames the travelling and resting twin see each other aging faster than they themselves are but, "For a moment-by-moment understanding of how the time difference between the two twins unfolds, one must understand that in special . With ten years passing for every three minutes on a remote stretch of Texas coast, planes fall out of the sky, evolved species are on the hunt, and people die inside one of . Spacetime Diagram explanation of the Twin Paradox The answer to this question is that for the astronaut to return to the Earth, he/she must change direction and thereby switch from one inertial frame to another, and that breaks the symmetry between the two observers. According to Einstein's theory of Special Relativity, time isn't the same for everyone. Time must never be thought of as preexisting in any sense; it is a manufactured quantity. Is The Twin Paradox Still a Paradox? — MOVIESANDSCIENCE.COM Einstein's theory of Special Relativity states that time isn't the same for everyone - not even for twins. The first twin, who makes a propagation into space with the help of a high-speed rocket and returns home to get the information that the other one who remained on earth has aged more. As they prepare to part ways, the twins wonder what will happen when they're reunited. Prime takes a trip on the train to a distant station (distance L), at uniform velocity v (a considerable fraction It works just the same in deep space. In this supposed paradox, one of two twins travels at near the speed of light to a distant star and returns to the earth. By Don Lincoln, Ph.D., Fermi National Accelerator Laboratory This article attempts to explain the contradictions related to the famous paradox in special relativity, the twin paradox. The Twin Paradox is no longer a paradox. The Time Paradox is not a single paradox but a series of paradoxes that shape our lives and our destinies. Terra will remain on Earth, while Stella will board a spaceship. Let's try it out . Three specific examples of the twin paradox are provided in which the system is completely symmetric; consequently the existing explanations are not able to resolve the paradox. The other twin stays on Earth and waits. Learning Objectives Explain the twin paradox within the standard framework of special relativity What is the 'twin paradox'? This apparent contradiction is known as the "Twin Paradox." But it's not really a paradox- just an example of how special relativity can be easily misunderstood. In Einstein's theory of relativity, time dilation describes a difference of elapsed time between two events, as measured by observers that are either moving relative to each other, or differently, depending on their proximity to a gravitational mass. The paradox depends upon the unspoken idea that the passage of time is the same in all circumstances. The Twin Paradox: Directed by Philip Conserva. If playback doesn't begin shortly, try restarting your device. (We'll follow convention by referring to this speed as "c".) First chose one specific inertial frame of reference, say the rest frame of the Earth (which we'll pretend is inertial). Einstein's twin paradox explained. One will remain on Earth, while the other will board a spaceship to travel to a star 10 light-years away. No, it can't. Changing reference frames can't explain anything, since any actual physics is independent of any choice of reference frames. There appears to be some controversy as to whether the twin paradox as explained by the special theory of relativity implies some inconsistency in the theory. lauren mcalpine accepted English subtitles for Einstein's twin paradox explained: lauren mcalpine edited English subtitles for Einstein's twin paradox explained: Tara Ahmadinejad edited English subtitles for Einstein's twin paradox explained: Tara Ahmadinejad edited English subtitles for Einstein's twin paradox explained 4 Logical Paradoxes!! While there are a variety of possible examples of the Twin Paradox in action, let's consider the following version. A version of the twin paradox without accelerations. Finally, the traveler twin returns to meet his twin on Earth. - DVdm 19:14, 25 May 2020 (UTC) Alright, right now I can't get into those, but I'll take your word for it. The twin paradox in physics is a thought experiment in special relativity.It involves identical twins, one of whom makes a journey into space in a high-speed rocket and returns home to find that the twin who remained on Earth has aged more.. For example, if we observe a clock moving at a constant speed relative to us, it appears to mark time slower . Diagrams and equations demonstrating the symmetry of clock rate and length measures across inertial frames. Terra will remain on Earth, while Stella will board a spaceship. The twin paradox: Is the symmetry of time dilation paradoxical? With Ted Danson, Elisabeth Shue, George Eads, Jorja Fox. But the ones who could understand relativity welcomed it. Select Users. Again assume A for astronaut and B for businessman. The twins wonder what will happen when they're reunited. Two identical twins set a stopwatch and one of them goes into space and travels with the speed of light to a planet X. The paradox is about twins, one of which goes on a journey to outer space where he is observed by the Earth twin to be moving with great speed. But this is not correct. The Slowing of Clocks and the Twin Paradox. If even the simple math is confusing, read the last two paragraphs. Correct Resolution of the Twin Paradox Michael Huem er In the following, I explain the "Twin Paradox", which is supposed to be a paradoxical consequence of the Special Theory of Relativity (STR). Enter the usernames or email IDs of the users you want to share with The twin paradox is a thought experiment that demonstrates the curious manifestation of time dilation in modern physics, as it was introduced by Albert Einstein through the theory of relativity. 2. No. The so-called "twin paradox" is easily resolved by noting that there is a physically meaningful disinction between the experiences of the two twins during the trip. Follow two astronauts into outer space to explore time dilation and Einstein's theory of relativity through the Twin Paradox thought experiment. The reason the case of the travelling twins is also known as the "twin problem" or even the "twin paradox" is the following. $\endgroup$ - D. Halsey. Einstein's famous Twin Paradox in which a twin makes a journey into space in a high-speed rocket and returns home to find he has aged less than his identical twin who stayed on Earth is a mind boggling concept at first glance. The counterintuitive nature of Einstein's ideas makes them difficult to absorb and gives rise to situations that seem unfathomable. The Earth is irrelevant to the twin paradox. Abstract. The Twin Paradox has a very simple resolution in this framework. My view is the more . The Earth-bound twin remains in a single constant velocity reference frame the entire time while the traveling twin must accelerate to turn around and come home. The speed of light is a law of nature. To avoid this, cancel and sign in to YouTube on your computer. Dec 7, 2021 #4 PeterDonis Mentor Insights Author 2020 Award 36,304 14,208 kvdr said: Once we've chosen a reference frame, we can define co-ordinates (t,x,y,z) for every event that takes . The twin paradox. What Is the Twin Paradox? Fortunately for relativity it is not a paradox at all. The twin paradox is a result from special relativity that states that if one person, Alice, remains "stationary" and another person, Bob, takes any kind of round trip, then the stationary Alice will experience more time. Twin Paradox How is the Twin Paradox Explained? If you travel in a spaceship and come back, you'll have aged less than the people who stayed. Prime and Unprime are twins; they say their farewells as Prime boards a train. A month or so ago, I was asked to provide a logical explanation to the Twin Paradox that showed why symetrical views of time was not a paradox or how was symmetrical views of time completely consistent with the time deviation experienced between the twins. Identical twin astronauts volunteer for an experiment. Stella's ship will travel to visit a star that is 10 light-years away, then return to Earth. It is a problem that involves relativistic time dilation, from the special theory of relativity (the jargon might seem tough, but the solution is quite intuitive). In its standard form, the traveler changes velocity only at the . In physics, twin paradox space is the thought experimentation in special relativity consisting of identical twins. Samuel L. Myers Jr., an economist at the University of Minnesota, calls it "the Minnesota paradox." "The Twin Cities area, in particular, is deeply segregated in terms of housing, education . Twin Paradox Animation on youtube. Suppose that one of two identical twin sisters flies off into space at nearly the speed of light. So what is the Twin Paradox? Because of special relativity, although the twins were born at the same time, after the journey their ages are now years apart. Twin Paradox explanation Now, come to the point to explain Twin Paradox-Let's imagine two twin brothers-A & B. Answer (1 of 7): Here's something I posted before, with simple math in it. One well-known case is the twin paradox, a seeming anomaly in how special relativity describes time. How Time Dilation Explains the "Twin Paradox". The twin paradox could be explained clearly in special relativity,that the twin on rocket should experience acceleration,which slows his clock to make him younger when they meet again on earth.Nevertheless,to set up any feasible experiment seems to be impossible so far,only waiting for further technological development of the human society. ~Book Description (via Goodreads)~. On their 20th birthday, identical twin astronauts volunteer for an experiment. As has been mentioned, Special and General Relativity are both self-consistent within themselves and within physics. lauren mcalpine accepted English subtitles for Einstein's twin paradox explained: lauren mcalpine edited English subtitles for Einstein's twin paradox explained: Tara Ahmadinejad edited English subtitles for Einstein's twin paradox explained: Tara Ahmadinejad edited English subtitles for Einstein's twin paradox explained It involves an observer (more precisely: an inertial observer . Gravity has nothing to do with it. An example of clocks changing their rates with changes in motion is the so called Twin Paradox where one twin travels at very high speed to a star and back and returns younger than the twin that stayed home. I give the correct resolution of the "paradox," explai ning why STR is not incon sistent as it app ears at first glanc e. I al so deb unk two The twin paradox can be explained by changing reference frames. Who will be older? twin paradox, an apparent anomaly that arises from the treatment of time in German-born physicist Albert Einstein 's theory of special relativity. Twin Paradox Analysis. In physics, the twin paradox is a thought experiment in special relativity involving identical twins, one of whom makes a journey into space in a high-speed rocket and returns home to find that the twin who remained on Earth has aged more. I get the following from a book by Paul Davies. Once you work the problem out completely, you see that there is - of course - no logical paradox. The majority of them, overwhelmed by mathematical difficulties of the general theory of relativity, decided to keep silent. Despite several attempts that have been made to explain the twin paradox, which are based on asymmetry and acceleration, it is shown that none of these explanations can resolve the paradox in the general case. The Twin Paradox is the first novel in the Twin Paradox series. The "Twin Paradox" is a thought experiment in Special Relativity, in which the ages of twins are compared after one has made a high speed journey over a long period of time, while the other has remained stationary. Terra will remain on Earth, while Stella will board a spaceship. The twin paradox of the special theory of relativity has given rise to a large body of literature discussing its implications. The twin paradox uses the symmetry of time dilation to produce a situation that seems paradoxical. Einstein's Twin Paradox Simplified. Basically, it states that the faster we go, the more the time is affected. To test their theories in real-time, each of the twins agrees to send a burst of light to the other every . Attempts to Explain the Twin Paradox Many attempts have been made to explain the twin paradox, which fall in two categories; one based on asymmetry and the other on acceleration. The counterintuitive nature of Einstein's ideas makes them difficult to absorb and gives rise to situations that seem unfathomable. Jul 17, 2020 #3 Ibix Science Advisor Insights Author 2020 Award 8,341 7,777 Tony Wright said: Time and the Twin Paradox. Terra will remain on Earth, while Stella will board a spaceship. Twin paradox explained The opinion of the world famous scientists on the theory of relativity varied greatly. The reason the twin in the rest frame ages is that the travelling twin has switched rest frames twice. Twins and B synchronize their clocks on Earth, t t A B= =0. --On their 2. It's just a way of making one of the twins have (approximately) inertial motion throughout the experiment. "The Twin Paradox is one of the best science thrillers to come along since Andy Weir's The Martian." Chris Weitz, Screenwriter, Rogue One With ten years passing for every three minutes on a remote stretch of Texas coast, planes fall out of the sky, evolved species are on the hunt, and people die inside one of the most vicious ecosystems ever . Relativity dictates that when he comes back, he is younger than his. Real Time Travel Welcome to The Time Paradox, a book by Philip Zimbardo & John Boyd. So basically, the story goes like this. This clever animation produced by Yuanjian Luo interprets the theory in a way that . On their 20th birthday, identical twin astronauts volunteer for an experiment. The "paradox" in the twin paradox is that a naive view of the problem would suggest that the situation ought to be perfectly symmetric: each twin should believe that he or she is really at rest, while the other twin is the one who moves off at high speed then returns. The classic twin paradox is "explained" because there is acceleration, but in the following version of the twin paradox there is no acceleration and I do not see how the dilation of time could be explained. The twin paradox is a thought experiment: one twin makes a journey into space and returns home to find that twin remained aged more. The Equivalence Principle analysis of the twin paradox simply views the scenario from the frame in which Stella is at . A Tale of Two Twins - Einstein's Twin Paradox Explained in Animation 20 February 2011 When I was younger I always found Einstein's Twin Paradox a difficult concept to grasp, probably because it demanded rational thought and secondly, because it did my head in (using the vernacular of the eighties, when I was a teenager). Time dilation is easy, and fun and I suppose this is why this version is often used. The experiment harkens back to Einstein's "Twin Paradox," a thought experiment in which one twin rockets to the stars at high speed while the other stays home. The paradox lies in the fact that from the point of view of the traveling twin, the "staying" twin is the one experienced as distancing away and then returning back with the same relative velocity v. ′ 2 Thus, the traveling twin will measure an equal time dilation of = 1⁄√1 − ( ) = . This video explores four logical paradoxes that have us wondering about the limits of our selfhood. The acceleration bit in SR is extensively explained in the section Twin paradox#Resolution of the paradox in special relativity and subsections, with sources galore . Follow two astronauts into outer space to explore time dilation and Einsteins theory of relativity through the Twin Paradox thought experiment. Feb 1 at 22:59. As they prepare to part ways, the twins wonder what will happen when they . Stella's ship will travel at 86.6% the speed of light to visit a star that is 10 light-years away, then return to Earth at the same speed. The crucial concept is the proper time of a moving body. A version of the twin paradox without accelerations. Use features like bookmarks, note taking and highlighting while reading The Twin Paradox (The Twin Paradox Series Book 1). to three paradoxes of special relativity: the twin paradox, the grandfather paradox, and an apparently paradoxical result about the nature of the present, past, and future. Where Einstein's "Special Theory of Relativity" gave birth to the paradox, his "General Theory of Relativity" laid it to rest. T t a B= =0 I suppose this is Why this version is often incorrectly referred in. Involves an observer ( more precisely: an inertial observer read the last two paragraphs real-time, of... Parada ox, when the twins meet, the traveler twin returns Earth... 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