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Physics 10 Online
OpenStudy (isabel☺):

Can you guys help me to think innovative product/s? Our target is for the families in depressed areas with no electricity. Help me ☺

OpenStudy (isabel☺):

@hartnn

OpenStudy (anonymous):

Often clean water is a need. Filtration can be achieved wia funnel on high, tubing, a bed of clean material or sand or cloth at bottom, and something collect the filtered water. Better yet, chemical used to disinfect water for drinking, with correct measurement made easy.

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