If you're interested in solar photography you can make a DIY solar filter using old CDs, cardboard, glue, and tape. As long as you're not looking directly through the lens but instead using the LCD ...
Pristine water: the solar absorber gel purification system in a lake at Princeton University (left) and the clean water produced during its immersion. (Courtesy: Xiaohui Xu) Pufferfish have inspired a ...
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Teen invents solar-powered water purifier made entirely from electronic waste
Earlier this year, 17-year-old Zabeer Zarif Akhter earned a coveted spot in The Stockholm Junior Water Prize - an ...
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