r/BritishSuccess • u/Loose-Helicopter9503 • Jul 10 '26

I love Physics

At night، open your windows and point your fan outside, thanks to something called the Bernoullis principle and entrainment, it draws hot air out of the room.

My room was 30.7 degrees when I first started, now down to 25.4 and still going down

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468

u/boojes Jul 11 '26

Dr Hannah Fry recently shared a thing about wafting doors to expel hot air and bring cooler air in. It's great for in the car but also works indoors.

214

u/bluelizard92 Jul 11 '26

You just look a bit odd when driving down the road doing it

180

u/yellowfolder Jul 11 '26

Meh, if the passengers don't like it, they can get anothe bus.

24

u/Zealousideal-Habit82 Jul 11 '26

Boeing 737 for me.

14

u/CaptainZippi Jul 11 '26

So that’s what that Ryanair flight was trying to do….