Featured in water
Care for a Glass of Toilet Water?
A parched Los Angeles considers a radical water-conservation plan
America’s Dwindling Fresh Water
Decades of poor irrigation and diverting practices destroyed the Aral Sea; now the Great Lakes face a similar fate
The No-Magic Card Trick
Adam Weiner explains the physics behind an excellent party stunt. Hint: the wizardry's in the water
Tainted Tap Water
A nationwide wastewater monitoring system could pinpoint dangerous levels of contaminants in real time, and help keep our drinking water safe. It could also ruin a city's reputation.
Your Sewer on Drugs
Sewage is more than just filth. It’s evidence of our worst habits, everything from caffeine to cocaine, all ingested and flushed down the toilet. Now scientists are using wastewater to...
Mars’s Bubbly Past
Wet, wet, wet--oh, and salty, too
Save Energy by Shutting the Faucet
It may make more sense to take shorter showers than to switch to florescent bulbs
Robot Subs in Space
PopSci innovator Bill Stone plans to drop one of the world´s most advanced underwater robots into the deepest hole on Earth. If all goes well, this thing just might help...
Creative Waste Management in Space
For Mars-bound astronauts, fuel may be just one flush away.