Eli5: How come fire flames go upwards and why do the flames always “dance” around?
In: 285
Heat rises.
In some circumstances (in the case of the London Tube fire), it actually LAID DOWN. The angle of the escalators at kings Cross formed superheated gas AHEAD of the flames, fuelling the flames as it went up the Escalator, accelerating as it went. A jet of super heated flame hit the ticker hall.
Nobody thought it possible, until they built a scale replica of the Escalator and ticket hall and set it alight, and watched in horror as the flames mimicked what eye witnesses at the station described.., Firefighters had never seen the phenomenon before.
[https://youtu.be/HQfqt0LDANQ?t=592](https://youtu.be/HQfqt0LDANQ?t=592) And [https://youtu.be/PBbJXvJYeq0?t=2345](https://youtu.be/PBbJXvJYeq0?t=2345)
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