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Does Hot Water Freeze Faster Than Cold Water?

Sciencium
Explainers
YouTube
Cited on HN 3 times, 2020–2026, never outright recommended score 0
Years with an HN recommendation, 2007–2026

HN cites it as a concise rundown of why the Mpemba effect likely does not hold up.

Sciencium examines the Mpemba effect, the claim that hot water freezes faster than cold water. It walks through experiments and a published paper questioning the effect.

“walking through all the experiments that demonstrate the effect does not in fact exist.” (HN, 2022)

3 citations · Explainers · partly dated

3 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@aaron695 Aug 2020 Cites it
on HN thread The physics of why hot water sometimes freezes faster than cold water
We all get the Mpemba effect is totally fake right? You all own freezers so you can test it for yourself, it was found by a child making icecream so it will be easy! And if you're the !first! to put it on Youtube that'd be cool. Sciencium talks about it here if you want an ok run down and how it's not real - [this video]
Run-down of why the Mpemba effect isn't real
@chotmat Mar 2026 Cites it
on HN thread LLMs Predict My Coffee
It's because you was wrong (or at least not correct). The Mpemba Effect wasn't scientifically proven, and can be explained away with error in measurement. [this video]
Mpemba effect not scientifically proven

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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