purify water

This low-tech terrarium purifies water like a mini-Amazon rainforest (Video)

This low-tech terrarium purifies water like a mini-Amazon rainforest (Video)

Emulating the same processes naturally found in rainforests, this prototype filters and cleans water of harmful pollutants.
13 Year Old Invents A Water Purifier Made Out of Corn Cobs

13 Year Old Invents A Water Purifier Made Out of Corn Cobs

Lalita Prasida Sripada Srisai in 9th grade, attending DPS Damanjodi, a school in a small town in the Koraput district in the Indian state of Odisha. She won the 'Community Impact Award’ at the Google Science Fair for her incredible invention
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