Uploaded March 2025 | Updated September 2026, 2 weeks ago

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Find out more about Jane Street's AMP and apply: jane-st.co/SM-AMP25

Hose instability describes the dangerous phenomenon of nozzle whip the fire fighters experience but also sky dancers (Wacky Waving Inflatable Arm Flailing Tube Men).

My video about inward sprinklers on Smarter Every Day: youtu.be/M4-L8UgPkOk
Megaflatables: megaflatables.com

Thank you to @londonfirebrigade for letting me film with them.

You can buy my books here:
stevemould.com/books

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Alex Hackman
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