HOW THE WORLD WORKS · Ep. 1

The Fast Ones

Why does your tea cool faster when you blow on it?

The film asks: Do you blow or wait? · Blow / Wait / Ice cube

The call

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What it says

Why does your tea cool faster when you blow on it?
Because the hottest molecules are the ones leaving. Steam is the fast crowd escaping.
They take their heat with them, so the ones left behind are cooler on average.
Blowing sweeps the escapees away, so more can leave.
It's a dance floor. When the wildest dancers leave, the room calms.
Do you blow or wait?

01). A tea house. On the counter, a glass teacup where the molecules are little dancers: the fast ones leap out as steam. Next door, through an arch, a dance floor: when the wildest dancers leave, the room calms. You blow across the cup and the escapees are swept away, so more can go.

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