Thứ Sáu, 28 tháng 6, 2019

New solar technology could produce clean drinking water for millions in need: ‘new material speeds the process of evaporation, enabling a small solar still to provide all the drinking water one family needs.’


https://ift.tt/2NuUxDc via /r/worldnews https://ift.tt/2NAuiM3

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