Why the French are painting their windows with chalk to beat the heat

www.bbc.com

Why the French are painting their windows with chalk to beat the heat

www.bbc.com

Wudi@feddit.uk to

Europe@feddit.orgEnglish · 13 days ago

Europe is in the grip of a record-breaking heatwave. To help stay cool, people in France have been turning to an unusual solution – chalk. Here's the science behind the trend.

Chat

Maeve@kbin.earth
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12 days ago
Limewash for exterior surfaces can help a lot
- HaraldvonBlauzahn@feddit.org
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  11 days ago
  Yeah it is limewash, but not the caustic one, it is just calcium carbonate - the material that school teachers use on blackboards.

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