THE VIDEO SHELF · alkali metal explosions
High speed camera reveals why sodium explodes!
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 HN readers recommended it
HN links it as the accessible video explanation of the sodium-in-water research, and when Coulomb explosions or sodium batteries 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
- Thunderf00t
- Topic
- alkali metal explosions
- Format
- explainer
- Level
- general
- HN recommenders in dataset
- 2
- HN mentions in dataset
- 10
- Recommendation years in dataset
- 2015–2024
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.
That's the video from before they published (which is still interesting). There is also a more recent video[1] (post-publication[2]) that covers how they got the data (which supports the coulombic explosion hypothesis). While it is mentioned at the end of the newer video, I highly …
pdkl95 on Hacker News · 2015-09
In What if I were 1% charged? (2013)The article in Nature is about a paper by Thunderf00t (Phil Mason). He published the result in Nature Chemistry and also made a video [VIDEO] (the video has a nice balance, it's technical but not too technical).
gus_massa on Hacker News · 2023-10
In Sodium batteries offer an alternative to tricky lithium
Summaries, classifications and recommendation records are from the HackerTube source dataset. Read about this library and its limitations.