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THE VIDEO SHELF · black hole energy

The Unreasonable Efficiency of Black Holes

Minutephysics compares how efficiently different processes convert mass to energy per E=mc^2, from fire and fission to fusion, antimatter and black holes, which can convert a large fraction of mass to energy.

Why HN readers recommended it

Linked as a quick, clear primer when black hole energy and efficiency come up.

This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.

Video & recommendation details

Creator / channel
minutephysics
Topic
black hole energy
Format
explainer
Level
general
HN recommenders in dataset
2
HN mentions in dataset
3
Recommendation years in dataset
2020–2025

These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.

From the original HN conversations

Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.

  • I don’t see why it’s unbelievable. High mass energy conversion is one of the least crazy things about black holes imo. For readers who want some quick info: [VIDEO] This PBS SpaceTime video doesn’t talk about the practical uses of Kugelblitzes, but it isn’t a …

    willis936 on Hacker News · 2020-05
    In Black hole paradoxes reveal a fundamental link between energy and order
  • Well, that very nearly is the method of power generation. It would presumably be paired with some sort of Dyson sphere around the white dwarf. (Remember that a "Dyson sphere" isn't necessarily a solid shell, but just some configuration of matter where no matter which …

    jerf on Hacker News · 2021-10
    In We've spotted a planet surviving its dying star

Summaries, classifications and recommendation records are from the HackerTube source dataset. Read about this library and its limitations.

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