Don’t Let That Viral Drinking Water Database Scare You
The Environmental Working Group’s database is designed to instill fear. Continue reading Don’t Let That Viral Drinking Water Database Scare You
Tag Archives: Water
Microorganisms Can’t Hide From DropoScope
The DropoScope is a water-drop projector that works by projecting a laser through a drop of water, ideally dirty water crawling with microorganisms. With the right adjustments, a bright spot of light is projected onto a nearby wall, revealing a magnified image of the tiny animals within. Single celled organisms show up only as dark spots, but larger creatures like mosquito larvae exhibit definite structure and detail.
While simple in concept and requiring nothing more high-tech than a syringe and a laser pointer, getting useful results can require a lot of fiddly adjustment. But all that is a thing of …read more
This Way to the Ingress: Keeping Stuff Dry and Clean with IP and NEMA
When designing a piece of hardware that has even the faintest chance of being exposed to the elements, it’s best to repeat this mantra: water finds a way. No matter how much you try to shield a project from rain, splashing, or even just humid air, if you haven’t taken precautions to seal your enclosure, I’ll bet you find evidence of water when you open it up. Water always wins, and while that might not be a death knell for your project, it’s probably not going to help. And water isn’t the only problem that outdoor or rough-service installations face. …read more
Continue reading This Way to the Ingress: Keeping Stuff Dry and Clean with IP and NEMA
DIY Ram Pump Obeys the Laws of Physics
Despite the claims of “free energy” on the title of the video below, this is not yet another wacky perpetual motion story. We here at Hackaday fully support the laws of thermodynamics, and we think you should too. But you have to admit that a pump that works without any apparent energy inputs looks kind of shady at first glance.
The apparatus in question is a ram pump, a technology dating back all the way to the 18th century. The version that [Junkyard – Origin of Creativity] built uses commonly available materials like PVC pipes and fittings. About the only …read more
Hackaday Prize Entry: Collaborative Water Purification
Look over any description of a water treatment plant, and you’ll find a description that includes the words, ‘coagulation tanks’. What are these treatment plants coagulating? You don’t want to know. How are they doing it? With chemicals and minerals. Obviously, there’s something else that can be done.
For their Hackaday Prize entry, [Ryan], [designbybeck], [Clint], [Wanda] and [Maker Mark] are investigating electrocoagulation. It’s an alternative to a frothy brew of chemicals that uses electricity to pull pollutants out of the water.
Right now, the tests are much smaller in scale than the tens of thousands of gallons you’d find …read more
Continue reading Hackaday Prize Entry: Collaborative Water Purification
Hackaday Prize Entry: Collaborative Water Purification
Look over any description of a water treatment plant, and you’ll find a description that includes the words, ‘coagulation tanks’. What are these treatment plants coagulating? You don’t want to know. How are they doing it? With chemicals and minerals. Obviously, there’s something else that can be done.
For their Hackaday Prize entry, [Ryan], [designbybeck], [Clint], [Wanda] and [Maker Mark] are investigating electrocoagulation. It’s an alternative to a frothy brew of chemicals that uses electricity to pull pollutants out of the water.
Right now, the tests are much smaller in scale than the tens of thousands of gallons you’d find …read more
Continue reading Hackaday Prize Entry: Collaborative Water Purification
This Solar-Powered Device Sucks Drinking Water Out of Thin Air
This could benefit people in arid climates and water-starved regions. Continue reading This Solar-Powered Device Sucks Drinking Water Out of Thin Air
Cordless Water Pump!
A water pump is one of those items that are uncommonly used, but invaluable when needed. Rarer still are cordless versions that can be deployed at speed. Enter [DIY King 00], who has shared his build of a cordless water pump!
The pump uses an 18 volt brushed motor and is powered by an AEG 18V LiPo battery. That’s the same battery as the rest of [DIY King]’s power tools, making it convenient to use. UPVC pipe was used for the impeller — with a pipe end cap for a housing. A window of plexiglass to view the pump in …read more
The Fight to Protect This Swath of Wilderness Is Going to Canada’s Supreme Court
The Peel Watershed, in the Yukon, is one of the largest intact pieces of wilderness left in North America. The Supreme Court will decide its fate. Continue reading The Fight to Protect This Swath of Wilderness Is Going to Canada’s Supreme Court
Riverkeeper Marty Baum Is Out to Stop Florida’s Algae Apocalypse
This resident of the Sunshine State is fighting an uphill battle against the governor, Congress, and public apathy, to save the lagoon he calls home. Continue reading Riverkeeper Marty Baum Is Out to Stop Florida’s Algae Apocalypse