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Chemistry

We now know exactly how thick the boundary between water and air is

Scientists hit water with lasers to measure the boundary between air and water, which could help us better understand Earth's atmosphere and improve hydrogen production

By Karmela Padavic-Callaghan

1 May 2024

water background; Shutterstock ID 174780473; purchase_order: -; job: -; client: -; other: -

The top three layers of water molecules form a distinct boundary between the H2O below them and the air above

Olga Nikonova/Shutterstock

Scientists have finally pinned down the precise thickness of the barrier between water and air. This finding could offer fresh insights into atmospheric science and even help ramp up renewable energy production.

“We have water in our human body, we have water in the atmosphere. Water is everywhere, but there’s still a huge lack of knowledge about water,” says Martin Thämer at the Fritz Haber Institute of the Max Planck Society in Germany.

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