Clean water isn’t option for people in many parts of the world, but a new device half the size of a postage stamp may change that. Developed by researchers at Stanford University, the device can harness the power of the sun to disinfect a container of water in as fast as 20 minutes. All you have to do is drop the miniscule solar machine into the water you want to cleanse and leave it outside for a bit. Especially in places where sunshine is abundant, this device could be a major life-saver by ensuring people with clean water.
This tiny device disinfects water using solar energy
More of Today's Solutions
The Ocean Cleanup removed a record 25 million kilos of plastic in 2025 (and t...
BY THE OPTIMIST DAILY EDITORIAL TEAM In a world where the scale of plastic pollution can feel overwhelming, 2025 brought a milestone worth celebrating: ...
Read MoreAncient nits aid uncovering of human ancestry
To uncover information about ancient genomes scientists have previously relied on fossils of bones and teeth. Alongside ethical issues, the problem with this is ...
Read MoreAlways late? Here’s 7 tips to curb the habit
We’ve all run late before, whether it was because of a missed alarm, couldn't find the right outfit, or getting stuck in traffic. It ...
Read MoreHow Uruguay achieved 98% renewable energy
During the 2000s, as global fossil fuel costs skyrocketed, Uruguay faced a tremendous issue. Uruguay, as a country heavily reliant on foreign oil, found ...
Read More
