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Entangled 'verse … 10^n and 10^-n

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Astronomy Picture of the Day

See also https://apod.nasa.gov/

  • Venus and the Da Vinci Glow
    On March 23 early evening
  • Outbound Comet ZTF
    Outbound Comet ZTF
  • Spiral Galaxy NGC 2841
    A mere 46 million light-years distant, spiral galaxy NGC 2841
  • (no title)
    How far can you see?
  • (no title)
    Can dust be beautiful?
  • (no title)
    Are your eyes good enough to see the Crab Nebula expand?
  • (no title)
    To see the feathered serpent

  • Gamma photons – formerly known as rays – the extreme EM spectrumMarch 3, 2023
  • How early did disk galaxies emerge?January 16, 2023
  • Unitarity forever? – in an expanding universeDecember 19, 2022
  • Quarks – extremely inseparableNovember 12, 2022
  • JWST’s Pillars of Creation – a star hatcheryOctober 21, 2022
  • 2022 Nobel Prize – ‘spooky action’ pioneersOctober 5, 2022
  • What is ‘squeezed light’?September 26, 2022
  • RIP ‘Big Bang’ singularity?August 24, 2022
  • QFT – fields and wave packetsAugust 18, 2022
  • When light speed changes?August 18, 2022
  1. John Healy on Living with stellar storms – the moods of our SunMarch 24, 2023

    Solar storm forecasting is not exact. • Space.com > "Strongest solar storm in nearly 6 years slams into Earth catching…

  2. John Healy on Quantum computing explained – 5 levels of difficultyMarch 24, 2023

    Some progress in creating practical quantum bits. • Phys.org > "Doubling a qubit's life, researchers prove a key theory of…

  3. John Healy on Effective theoryMarch 14, 2023

    Happy Pi Day! Here's another article on pi's appearance in so many contexts. • Wired > "Pi Is Hiding Everywhere"…

  4. John Healy on QFT – fields and wave packetsFebruary 24, 2023

    How can a field have a spin? And how does the Higgs boson fit into QFT? This article discusses "the…

  5. John Healy on What the heck is superposition?February 24, 2023

    So, what about non-linear systems? This article highlights non-linearity in new, more detailed supercomputer simulations of black hole mergers "that…

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