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The Absurdity of Detecting Gravitational Waves

Veritasium · explainer · Watch on YouTube

Cosmology & astrophysicsFundamental physics

What it is

Veritasium explains in detail how LIGO detects gravitational waves, with a laser interferometer measuring displacements smaller than a proton. The video focuses on the extreme precision and the techniques needed rather than the general discovery story.

Why Hacker News recommends it

HN recommends it as a good layperson explanation of how LIGO's detection works and why it is so hard.

  • 3 people recommended it
  • 2 different months
  • 1 strong recommendations
  • first 2017, last 2019

What HN commenters said

  1. “I personally really like veritasiums video here.”

    Layman's explanation of gravitational waves and detection

    aeleos, 2017-09 · Strong recommendation · in “Gravitational waves from a binary black hole merger observed by LIGO and Virgo”

  2. “Veratisium has a pretty good video explaining it in more laymen terms [0]”

    Layperson explanation of LIGO experiment precision

    ehsankia, 2017-06 · Recommendation · in “LIGO Detects Gravitational Waves for Third Time”

  3. “Here is a great video with explanations”

    Explains the many techniques used to detect gravitational waves

    netcraft, 2017-06 · Recommendation · in “LIGO Detects Gravitational Waves for Third Time”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: ligo, gravitational waves, interferometer, veritasium, physics

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