〈 Berger | Dillon 〉

@InertialObservr

PhD student of Theoretical Particle Physics l Fellow l Physics l Math l Philosophy l Patreon:

DC → CA
Vrijeme pridruživanja: kolovoz 2015.

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  1. Prikvačeni tweet

    A straight line may be the shortest 𝑑𝑖𝑠𝑡𝑎𝑛𝑐𝑒 between two points, but a "Brachistochrone" curve is the path of least time

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  2. proslijedio/la je Tweet
    4. sij

    Robot that can balance a triple-pendulum

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  3. The angle of that dangle

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  4. proslijedio/la je Tweet

    Visualizing the derivative of sin(x)

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  5. you send her flowers, i prove her theorems. we are not the same.

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    50 double pendulums, whose initial velocities differ only by 1 part in 1000

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  7. "very difficult" 😩🥵😭 "highly non-trivial" 😲😄😎

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  8. proslijedio/la je Tweet

    A Cycloid is a Tautochrone curve, meaning all points take the same time to reach the bottom regardless of initial height

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  9. when i was undergrad i once pronounced Numpy as 'numb pee' in front of at least 5 people. i still think about it.

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  10. Hydrogen atom cross-sections •The probability distribution |Ψ|² of the electron's location is represented as a thermal map (Atom is in the (5,4,2) state)

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  11. i'll take 'tweets i didn't think would be controversial' for $500 Alex

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  12. Additional thanks to , whose criticisms made the animation much more appealing!

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  13. Honored to have my animation of the Cosmic Microwave Background (CMB) featured in !

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  14. i think it's time to re-indoctrinate the youth

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  15. cubes within cubes within cubes within... (©:)

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  16. proslijedio/la je Tweet

    A Helix is perhaps my favorite way to visualize how sin(x) and cos(x) are generated from the unit-circle

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  17. I’m actually rather proud of this mini explanation of gauge gravity

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  18. Boom! We see that the graviton (metric; hμν) contains the exponential potential we expected! TL;DR: If the graviton has a mass~hubble rate (H), then large scale gravity can act repulsive and reproduce the Dark Energy observations, with no Dark Energy at all! (n/n)

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  19. But wait!, says de Rahm.. Perhaps Lorentz symmetry could just be an *approximate* symmetry of nature This would happen if the graviton (hμν) has a mass--mass terms for gauge fields always break gauge invariance But!.. look at the first tweet.. (5/n)

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  20. Because this symmetry (General Covariance) has never been observed to be violated, physicists were convinced that the gauge field corresponding to gravity corresponded to an exact, unbroken symmetry I would then immediately follow, then, that the graviton is massless

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  21. What about Gravity? The symmetry corresponding to gravity is the most respected symmetry in all physics & goes by many names It's the one underlying Einstein's General Theory of Relativity: General Covariance/Gauge-Lorentz Symmetry/ Diffeomorphism Invariance (3/n)

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