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A tree is made mostly of air.
A tree is made mostly of air.
In the early 1600s, a scientist named Van Helmont dried 90 kilos of soil, planted a 2-kilo willow in it, and watered it with rainwater only for 5 years.
The tree gained 75 kilos. The soil lost 57 grams — about the weight of one egg.
He thought it all came from the water. We now know most of it came from the air — carbon dioxide, caught by the leaves, with sunlight for power. About half the weight of dry wood is carbon from the air.
A log is solid air, with sunlight inside.
Habit for this week: look at one tree near you and remember — it built itself out of thin air.
Seen in a reel by Vibe Samurai — https://www.facebook.com/reel/1485535540107875/
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A tree is made mostly of air.
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