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Does Time Cause Gravity?

PBS Space Time · explainer · Watch on YouTube

Fundamental physicsCosmology & astrophysics

What it is

PBS Space Time explores whether time causes gravity, explaining that gravity does not truly warp the flow of time but arises from time gradients. It revisits how gravitational time dilation works in general relativity.

Why Hacker News recommends it

Recommended as a good explanation of what happens when gravity acts on an object.

  • 1 people recommended it
  • 1 different months
  • 1 strong recommendations
  • first 2021, last 2023

What HN commenters said

  1. “Here's a really good explanation of what's actually going on when gravity influences an object.”

    Explains what actually happens when gravity influences an object

    simonh, 2022-03 · Strong recommendation · in “Four years on, new experiment sees no sign of ‘cosmic dawn’”

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

Topics: gravity, time dilation, spacetime, physics, pbs space time

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