hackertube.io

High speed camera reveals why sodium explodes!

Thunderf00t · explainer · Watch on YouTube

ChemistryEveryday physics & science demos

What it is

Thunderf00t presents high-speed camera footage of alkali metals such as sodium and NaK reacting with water. The footage shows that the explosion is not caused by hydrogen ignition, as the usual explanation says. It is a Coulomb explosion driven by electrons leaving the metal.

Why Hacker News recommends it

HN links it as the accessible video explanation of the sodium-in-water research, and when Coulomb explosions or sodium batteries come up.

  • 2 people recommended it
  • 2 different months
  • 0 strong recommendations
  • first 2015, last 2024

What HN commenters said

  1. “that covers how they got the data (which supports the coulombic explosion hypothesis)”

    Newer video on how they got the data

    pdkl95, 2015-09 · Recommendation · in “What if I were 1% charged? (2013)”

  2. “the video has a nice balance, it's technical but not too technical”

    Technical but accessible video on the Nature Chemistry paper

    gus_massa, 2023-10 · Recommendation · in “Sodium batteries offer an alternative to tricky lithium”

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

Topics: sodium, coulomb explosion, high-speed camera, chemistry, water reactions

Also recommended by the same people