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fermatslibrary's profile
Fermat's Library
Fermat's Library
Fermat's Library
@fermatslibrary

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Fermat's Library

@fermatslibrary

A platform for illuminating academic papers. We publish an annotated paper every week. Our chrome extension for arXiv: https://fermatslibrary.com/librarian 

fermatslibrary.com
Joined September 2015

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    Fermat's Library‏ @fermatslibrary 30 Apr 2018
    • Report Tweet
    • Report NetzDG Violation

    A simple proof why close to the speed of light geometry becomes Non-Euclidianpic.twitter.com/83Sjgdy8iJ

    6:36 AM - 30 Apr 2018
    • 1,076 Retweets
    • 3,569 Likes
    • 卐 Brett Hopkins Amazing Tours Oman Geoff Crocker Dimitrios Kalemis PL Mastering Studio Void Eon Camille Desmoulins Kcin
    38 replies 1,076 retweets 3,569 likes
      1. New conversation
      2. Dvij Mankad‏ @dvijmankad 30 Apr 2018
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        Replying to @fermatslibrary

        Speeds don't make geometries non-Euclidean, acceleration does. One can go as close to the speed of light as one wishes and will still see the Euclidean (Minkowskian) geometry as long as she is freely falling.

        2 replies 0 retweets 19 likes
      3. Griffin Schwartz‏ @GriffinSchwartz 30 Apr 2018
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        Replying to @dvijmankad @fermatslibrary

        Constant speed rotation is acceleration

        1 reply 0 retweets 74 likes
      4. 1 more reply
      1. D. Brett Richardson Ⓥ‏ @BerkeleyBrett 30 Apr 2018
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        Replying to @fermatslibrary

        More on the Ehrenfest Paradox here: https://en.wikipedia.org/wiki/Ehrenfest_paradox … --- #EhrenfestParadoxpic.twitter.com/l0NzdBXHaM

        0 replies 4 retweets 10 likes
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      1. Daheim-Verbringer Bort‏ @victorolosaurus 30 Apr 2018
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        Replying to @fermatslibrary

        I think your conclusion is a bit too strong here. Should be something like "and thus the simple euclidean picture of scaling present in SRT does not work for general (accelerated) motions"

        0 replies 1 retweet 5 likes
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      1. Pete the Waiter‏ @ccalthrop 30 Apr 2018
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        Replying to @fermatslibrary

        Special relativity thought experiments can be “unbounded” - the Lorentz transformation of the circumference with v=c is what would “appear” to be from the view at the center, but the view at the periphery would still “appear” to be the actual Euclidean or “proper value.”pic.twitter.com/mVzFLcDX5b

        0 replies 1 retweet 5 likes
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      1. New conversation
      2. Keith Bigelow‏ @keithbigelow 30 Apr 2018
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        Replying to @fermatslibrary @nrmehta

        Just read this in @WalterIsaacson 's book on Einstein last week. If the @fermatslibrary team could align your updates to his chapters, I'm sure my retention will improve! :-)

        1 reply 0 retweets 4 likes
      3. Nick Mehta‏Verified account @nrmehta 30 Apr 2018
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        Replying to @keithbigelow @fermatslibrary @WalterIsaacson

        That book is amazing!

        1 reply 0 retweets 1 like
      4. 3 more replies
      1. New conversation
      2. Dr. Brant Raven‏ @BrantRaven 1 May 2018
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        Replying to @fermatslibrary

        You'll have to pardon my ignorance here..."Since the radius is always orthogonal to the direction of motion it will not contract". ? This is because Lorentz Contraction happens only in the direction of motion....correct?

        1 reply 0 retweets 0 likes
      3. Dr Elaine Walker  🌈 🎤 🔥‏ @ariaflame 1 May 2018
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        Replying to @BrantRaven @fermatslibrary

        Yes, but only from the point of view of someone not on the spinning disk

        1 reply 0 retweets 2 likes
      4. 2 more replies
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      2. Duane Krkovich‏ @DuaneAustinK 30 Apr 2018
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        Replying to @fermatslibrary

        lol.... if a disk is spun, it will contract in size? But only at near the speed of light? In other words its theoretical? Pondering wild theory seems nonsensical. Back in reality, when you spin a disc, it does not shrink in size.

        1 reply 0 retweets 0 likes
      3. Dr Elaine Walker  🌈 🎤 🔥‏ @ariaflame 1 May 2018
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        Replying to @DuaneAustinK @fermatslibrary

        You spun one at close to the speed of light?

        1 reply 0 retweets 1 like
      4. 4 more replies

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