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- What Is Dry Ice?
What Is Dry Ice?
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Nature documentary explainer · 49 seconds · English
A 49-second nature-documentary explainer: dry ice is frozen carbon dioxide that turns straight into gas, and the white fog is not dry ice at all but the room’s own water, made visible.
- The brief
- “What is dry ice?”
- Style
- Nature documentary
- Length and frame
- 49 seconds · 16:9
- Made for
- Lessons and courses
How it was made.
The whole brief was the question, worded the way people search for it. The director picked the style itself. It chose a photoreal nature-documentary look and opened on the fog, the thing everyone calls dry ice, to say it isn’t.
Thin white labels sit over the photos for the numbers: minus 78 °C, sixty degrees colder than a freezer. It cost $3.59 of model spend to make.
Every film on explain.film is made the same way: one sentence in, a storyboard you approve, then the director paints, voices, scores and animates it, and a critic model grades the cut before you see it.
Transcript
- That rolling white fog isn't dry ice at all.
- Dry ice is carbon dioxide, the gas you breathe out, frozen at minus seventy-eight Celsius, sixty degrees colder than your freezer.
- And it never melts.
- At normal air pressure, carbon dioxide can't be a liquid, so the solid turns straight into gas.
- That's why it's called dry.
- But that gas is invisible.
- It's so cold, it chills the air around it, and the room's own water vapour condenses into tiny droplets.
- Cold and heavy, the cloud sinks, and spills over the edge.
- So that fog was never dry ice.
- It's the air's own water, made visible.
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