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InertialObservr's profile
〈 Berger | Dillon 〉
〈 Berger | Dillon 〉
〈 Berger | Dillon 〉
@InertialObservr

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〈 Berger | Dillon 〉

@InertialObservr

PhD student of Theoretical Particle Physics @UCIrvine l @NSF Fellow l Physics & Math Animations l Patreon: https://www.patreon.com/inertialobserver …

DC → CA
youtube.com/c/InertialObse…
Joined August 2015

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    1. 〈 Berger | Dillon 〉‏ @InertialObservr 1 Oct 2019
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      Einstein's famous mass-energy equivalence is also a Pythagorean relationpic.twitter.com/JtXG4VipBD

      34 replies 197 retweets 975 likes
      Show this thread
    2. math prof‏ @mathematicsprof 1 Oct 2019
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      Replying to @InertialObservr

      Haha nice, but don't you need a (1/2) with the pc?

      1 reply 1 retweet 1 like
    3. Martin Vermeer FCD  🇪🇺‏ @SvantesKatt 1 Oct 2019
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      Replying to @mathematicsprof @InertialObservr

      Don't think so. E is the time component and pc the space part of the momentum four-vector.

      1 reply 1 retweet 4 likes
    4. John Carlos Baez‏ @johncarlosbaez 1 Oct 2019
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      Replying to @SvantesKatt @mathematicsprof @InertialObservr

      When you Taylor-expand E = sqrt(m^2 c^4 + p^2 c^2) you get E = mc^2 + p^2 / 2m + ... Maybe this 1/2 is what @mathematicsprof was talking about? It shows up automatically - no need to stick it in by hand.

      4 replies 1 retweet 19 likes
    5. Esa Pulkkinen‏ @PulkkinenEsa 1 Oct 2019
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      Replying to @johncarlosbaez @SvantesKatt and

      Hmm what do the rest of the terms of the Taylor expansion look like? Any large contribution to total energy that would be often ignored?

      1 reply 0 retweets 2 likes
    6. John Carlos Baez‏ @johncarlosbaez 1 Oct 2019
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      Replying to @PulkkinenEsa @SvantesKatt and

      The other contributions get large for objects moving near the speed of light, so you can't ignore them in particle accelerators.

      1 reply 0 retweets 4 likes
    7. Esa Pulkkinen‏ @PulkkinenEsa 4 Oct 2019
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      Replying to @johncarlosbaez @SvantesKatt and

      Ah right (found when googled). What about fine structure of atoms? Some electrons in atoms travel in relativistic speeds.

      1 reply 0 retweets 0 likes
      〈 Berger | Dillon 〉‏ @InertialObservr 4 Oct 2019
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      Replying to @PulkkinenEsa @johncarlosbaez and

      that's what John is saying .. if they are traveling at relativistic speeds you can't ignore the higher order terms

      2:05 PM - 4 Oct 2019
      • 2 Likes
      • Joshua Silva Esa Pulkkinen
      1 reply 0 retweets 2 likes
        1. New conversation
        1. John Carlos Baez‏ @johncarlosbaez 4 Oct 2019
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          Replying to @InertialObservr @PulkkinenEsa and

          Yeah, in hydrogen the electron moves about 1/137 the speed of light, but for a nucleus with N protons the innermost electrons move at about N/137 times the speed of light - and for some other reason we don't expect atoms with roughly N > 137 to exist.

          3 replies 3 retweets 17 likes
        2. 〈 Berger | Dillon 〉‏ @InertialObservr 4 Oct 2019
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          Replying to @johncarlosbaez @PulkkinenEsa and

          fine structure constant anyone ?

          2 replies 0 retweets 3 likes
        3. 4 more replies

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