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Mist in the Valley


Watch the mist well out of the bowl and swirl away down the “mountain" slope. The mist reveals the movements of the air as the colder air falls downwards.

What is mist?

Mist is made up of tiny water droplets hanging in the air. These droplets are created when invisible warm water in the air are cooled quickly. This cooling causes the invisible water vapor to turn back into visible water droplets- this is the mist we can see on a chilly morning!

Mist vs. Fog- What's the difference?

The main difference between these two is down to visibility. If you look out and are unable to see further than one kilometer in front of you, that's fog! Mist is less dense and so allows you to see further than 1km. Whichever you encounter, don't let it cloud your judgement!

Harvesting mist

In the mountains of Chile, rainfall is pretty rare. For plants to survive in these arid conditions, they must rely on other sources of moisture- fog can be a great alternative!

Fog is made up of tiny droplets of condensations that gather in large clouds near the surface of the Earth. Using nets, fog can be collected; tiny droplets of water will cling to the mesh, increasing in size until they grow heavy enough to fall into a gutter for collection.

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Look Closer

Welcome to Look Closer, Techniquest's brand new digital tool. We're trialling Look Closer as a way of offering you a closer look at the science demonstrated by many of our exhibits. You'll find visitor sheets, videos, articles on contemporary science as well as fun trails to navigate your way around the exhibition space.

Speak to our Science Communicators to find out more.