demo · HACKER NEWS RECOMMENDATION
Tesla Valve Explained With Fire
NightHawkInLight · 2 HN recommenders · 2 recommendation months
Recommended by 2 Hacker News commenters across 2 months (2019–2021).
SignalTube analysis
Among 65 other demo videos tagged Everyday physics & science demos, the mean is 1.3 distinct HN recommenders. This video has 2 distinct HN recommenders, about 1.6× that mean. Recommendations span 2 distinct months; the peer average is 1.2 months. This is a data-derived comparison, not a human review or quality rating.
67% of its 3 labeled comments are marked as recommendations or strong recommendations. HN mention years are 2019–2021; those years describe discussion history, not upload date. Its verified runtime is 5 minutes 53 seconds. YouTube lists its publication date as 2019-12-11.
- Channel / speaker
- NightHawkInLight
- Verified runtime
- 5m 53s
- YouTube upload date
- 2019-12-11
- Hacker News mention years
- 2019–2021
SAME TOPIC AND FORMAT
Compare with related videos
The comparison cohort uses other demo videos in Everyday physics & science demos. “Shared recommenders” counts HN users who recommended both videos in the source graph.
| Video | HN recommenders | Recommendation months | Positive label share | Shared recommenders | Runtime | Upload date |
|---|---|---|---|---|---|---|
| Tesla Valve Explained With FireCurrent video | 2 | 2 | 67% | — | 5m 53s | 2019-12-11 |
| Building a realistic artificial sun (for dark winter days)demo · DIY Perks | 9 | 8 | 45% | No recorded overlap | 19m 45s | 2020-10-31 |
| Why You Should Put YOUR MASK On First (My Brain Without Oxygen) - Smarter Every Day 157demo · SmarterEveryDay | 5 | 5 | 38% | No recorded overlap | 10m 18s | 2016-07-22 |
| Best fan placement to move air through the housedemo · Matthias random stuff | 4 | 4 | 80% | No recorded overlap | 6m 28s | 2021-06-30 |
THREE SOURCE-BASED CONTEXT POINTS
Why Hacker News recommends it
Each note combines the dataset’s stance label and short rationale; comment bodies are not reproduced. Open the HN source for the original discussion.
The archive classifies this as a recommendation in “Tesla valve”. Its short rationale: Fun visual demonstration running a flame front through a Tesla valve.
The archive classifies this as a contextual reference in “1921 Duesenberg Model A Belonged to the Same Family for Almost a Century”. Its short rationale: the source snapshot has no short rationale for this mention.
The archive classifies this as a recommendation in “A Tesla Valve”. Its short rationale: Well-made demonstration of how the Tesla valve works.