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Water


— Aircraft

New aerial firefighting system gulps water faster

By - December 15, 2014 5 Pictures
When you're using helicopters to dump water on forest fires, it goes without saying that the faster you can obtain and deliver water from lakes or other sources, the better. Most currently-used systems are able to gather H2O at rates ranging from 1,700 to 4,000 liters (450 to 1,056 US gal) per minute, which is fairly impressive. A new system developed by Spanish firm Inventec, however, is claimed to be capable of sucking up 1,000 L (264 gal) in just five seconds – that scales up to a rate of 12,000 L (3,170 gal) per minute. What's more, it's also said to be safer. Read More
— Space

Rosetta sheds light on origin of Earth's oceans

By - December 11, 2014 5 Pictures
The oceans are a mystery in more ways than one, but you might not expect the answers to come from a pack of electronics and a comet. But that's what the European Space Agency (ESA) says about the unmanned Rosetta probe orbiting comet 67P/Churyumov–Gerasimenko. Though 67P is making its first visit to the inner Solar System and won't come closer to the Earth than hundreds of millions of miles, it is throwing new light on one of the fundamental questions in Earth's history: Where did the oceans come from? Read More
— Robotics

Water pipe-inspection robot designed to have a light touch

By - December 2, 2014 1 Picture
When it comes to robots that perform internal inspections of water pipes, virtually all of them move along on rubber tires or treads. As that rubber grips against the inside of the pipe, however, it dislodges rust particles that ultimately end up coming out of peoples' taps. In an effort to address that problem, the European Union TRACT project is developing a propeller-driven inspection robot that keeps the pipe-touching to a minimum. Read More
— Marine

Ocean gliding robots used to study melting Antarctic sheet ice

By - November 17, 2014 2 Pictures
The use of "ocean gliders" for conducting research in oceanic conditions not ideal for regular methods has been catching on in the scientific community. Examples of this have been seen in the detection of endangered whales in the North Atlantic and a study of the Atlantic sturgeon. Researchers have now turned their robotic ocean helpers towards Antarctica, to study the rapidly-melting ice sheets on the coast of the western part of that polar land mass. Read More
— Environment

Silicon Valley's latest high-tech gadgetry makes sewage water drinkable

By - October 23, 2014 4 Pictures
Drinking recycled urine may be the stuff of Dune novels, and a drastic response to California’s ongoing drought. But officials in Santa Clara County in the heart of Silicon Valley are hoping its new high-tech purification plant will help residents get past the ick factor and eventually allow treated wastewater to flow through their faucets in a "toilet to tap" scenario. Opened in July, the $72 million Silicon Valley Advanced Water Purification Center is the most advanced such plant in the US, and uses a multi-step system of microfiltration, reverse osmosis and ultraviolet rays to produce water of higher quality than typical drinking water. Read More
— Science

Cigarette ash may find use filtering arsenic from water

By - October 16, 2014 1 Picture
In a perfect world, cigarette waste simply wouldn't exist. Given that it does, though, scientists have explored a number of methods of repurposing it – these have included using compounds from cigarette butts to store energy, make shipping pallets, and rust-proof steel. Now, researchers have shown that cigarette ash can be used as a low-cost means of filtering arsenic from water supplies. It's a little ironic, as cigarette smoke actually contains a dangerous amount of arsenic. Read More
— Health and Wellbeing

Low-cost water purifiers use chip packets to kill off dangerous bacteria

By - September 16, 2014 3 Pictures
Armed with plywood, a glass tube and some empty chip packets, mechanical engineering students from the University of Adelaide have developed a low-cost water purification system capable of killing off harmful bacteria. The solution is designed for remote communities in Papua New Guinea (PNG), an area where water is particularly susceptible to pathogen infestation. Read More
— Environment

Air HES system to collect water and generate electricity from the clouds

By - August 27, 2014 7 Pictures
Using a tethered airship floating high up amongst the clouds, the Air HES concept claims to yield both clean water and electricity by harvesting and condensing water vapor which it uses to spin up an electric turbine generator to create power. According to the creators, they have built a prototype to test their theory and have also conducted feasibility studies into upping the scale of their device to produce economically viable levels of water and power. Read More
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