Gadget That 'Listens' to Water and Warns You of Waste

A white gadget that resembles a sleek speaker than a device for water conservation may prevent people from wasting precious H2O, said one Silicon Valley startup.

The device, invented by the company Nascent, measures how much water you use by "listening" to the flow of H2O leaving the tap. The gadget begins each day with a full bar of light, which gets shorter whenever the device hears the tap left running. The rate at which the bar shrinks varies by home; if there are more people living under your roof, the device takes that into account and the bar will take longer to deplete.

"I know more about the sound of water than you'll ever believe," said Baback Elmieh, founder and CEO of Nascent. [5 Ways We Waste Water]

The device,acclaimed the "Droppler," is like Shazam (an app that can identify artists and song titles just by hearing the music) for water, Elmieh said. But there are some caveats, he added. "I call it Shazam for water, and that's true in a sense, but it's actually closer to a speech-recognition system than Shazam," Elmieh told Live Science.

Every sink sounds a little different — similar to different accents, Elmieh said. For example, if water could be represented by the English language, it might sound like a refined Englishman upon splashing in a metal sink and like an American cowboy when flowing in a ceramic sink.

The challenge, Elmieh said, is to collect as many "accents" as possible under as many circumstances as possible. Not only are various sinks accounted for, but also ambient noises are included, such as bathroom fans, music, chopping boards and many others.

"All that data together gives us a really good representation of most sinks," Elmieh said. The data feeds into a model that gets smarter as more information is included. "It is a statistical model that has been trained on hundreds of hours of data of all sorts of different sinks" in an effort to generalize the sound of water, Elmieh said.

He and his collaborators chose sound over a direct attachment to a house's plumbing in order to make the Droppler as user-friendly as possible, he said.

The Droppler's simple interface was also designed with accessibility in mind; the bar of diminishing light reflects how much water people use, "and they're going to see that every time they turn on the tap," Elmieh said. His prediction is the more you know, the more you will react.

Nascent partnered with the University of British Columbia's Behavioural Sustainability Lab, in Vancouver, Canada, to develop the Droppler. The device "is based on the research that was performed in our lab," Jiaying Zhao, the lab’s principal investigator, said in a statement.

"Dr. Zhao is a specialist in trying to figure out how to change human behavior to drive sustainability," Elmieh said. Zhao found that when people could see how much water they used on an egg-timerlike device, they cut their water use by at least 30 percent in laboratory settings, Elmieh said. This was true even for people who weren't predisposed to water conservation, he said.


The Droppler's beta testers report similar outcomes, Elmieh said. He recalled hearing stories about families sitting around the kitchen table trying to figure out who used 50 percent of the water at 9 o'clock in the morning. This type of device could create a social stigma around water usage, Elmieh said.

"We're here in California, [where] there's a problem all around us," Elmieh said, referring to California's historic drought. "We built something quickly, addressing a local problem — why wouldn't we try to do something about it?"

When the Droppler isn't needed to monitor water flow, it can break apart into a speaker or camera. It's a transformable gadget, Elmieh said, which also reflects Nascent's eye for sustainability.

To get its product commercialized, Nascent teamed up with the beer brand Shock Top for its "Shock the Drought" initiative, which highlights water-conservation products. Nascent is also raising funds through the crowdfunding site Indiegogo, and hopes to launch a finalized product in May, Elmieh said. The Droppler has currently raised $57,098 of its $70,000 goal, with seven days remaining in the crowdfunding campaign.

Satellite launched to monitor sea level, global warming

A SpaceX Falcon 9 rocket thundered away from a foggy California coast Sunday and boosted a $364 million science satellite into orbit Sunday, the latest in a series of spacecraft designed to precisely measure sea levels around the world -- a key indicator of global warming -- and to monitor ocean conditions responsible for extreme weather.

It was the second SpaceX launch in less than a month and the second in a row to attempt recovery of the Falcon 9's first stage. During a launching Dec. 21 at the Cape Canaveral Air Force Station in Florida, a Falcon 9 first stage carried out the company's first successful touchdown on land.

Because environmental impact requirements at Vandenberg Air Force Base in California are still being worked out, SpaceX used a landing barge -- the "Just Read the Instructions" -- for Sunday's recovery. SpaceX founder Elon Musk said the descent proceeded smoothly, but one of four landing legs did not lock in place and the rocket tipped over after touchdown.

"Definitely harder to land on a ship," Musk tweeted. "Similar to an aircraft carrier vs land: much smaller target area, that's also translating & rotating. However, that was not what prevented it being good. Touchdown speed was ok, but a leg lockout didn't latch, so it tipped over after landing."

Amazon-founder Jeff Bezos, whose company Blue Origin also is focused on recovery and reuse of rocket stages, tweeted: "Impressive launch and @SpaceX will soon make Falcon 9 landings routine - so good for space! Kudos SpaceX!"

By recovering, refurbishing and eventually relaunching rocket stages, Musk hopes to dramatically reduce launch costs. The rocket stage that landed in Florida last month was mounted on SpaceX's launch pad at Cape Canaveral last week and its nine-first stage engines successfully test fired Saturday.

But given the mixed results Sunday, SpaceX still has work to do. The company's record now stands at one success on land, and three failures, or near misses, at sea.

But Sunday's landing try, like the ones that preceded it, was a strictly secondary objective. The primary goal of the launch was to boost the Jason-3 satellite into orbit for NASA, the National Oceanic and Atmospheric Administration, the French space agency CNES and EUMETSAT, the European agency that manages weather satellite data.

Jason-3 is the fourth in a series of satellites that use state-of-the-art radar altimeters to measure the distance to the ocean surface below with extraordinary accuracy, allowing researchers to calculate ocean elevation, deep ocean temperatures, the velocity of currents, wave height and wind speed.

Jason-3 is "designed expressly for monitoring sea level rise, one of the clearest symptoms of global warming," said Laury Miller, NOAA's Jason-3 program scientist.

"It's now generally understood we've entered into a new era, a new norm, marked by rapid and persistent changes to the entire whole Earth system. What may not be widely understood is the role of the ocean in this complex process. More than 90 percent of all the heat now being trapped in the Earth system due to the greenhouse effect is actually going into the ocean.

"This makes the ocean perhaps the biggest player in the climate change story," he said. "Jason allows us to get the big picture in terms of sea level change in the years to come."

Jason-3's instruments also will collect data helping weather researchers and forecasters improve modeling of extreme weather, from hurricanes to tropical storms.

"In terms of severe weather, you don't have to look very far to find examples," Miller said. "Heavy rainfall, flooding, tornadoes out of season, droughts, all of these might seem like separate, isolated events, but many, if not all, of these are actually connected, linked to changes in the ocean occurring half a world away. The massive, turbo-charged El Nino that's currently battering the U.S. is perhaps one of the best examples."

Data from Jason-3 and its predecessors are "incredibly useful, especially to NOAA," Miller said, "because it allows us to not only track the sea level change that is impacting our coastal features right now but also to help forecast extreme weather."

Flying through heavy fog, the Falcon 9 climbed away from Space Launch Complex 4 at Vandenberg, on the California coast northwest of Los Angeles, at 1:42:18 p.m. EST (GMT-5; 10:42 a.m. local time), arcing away to the south toward a steeply inclined orbit around Earth's poles.

The Falcon 9's nine Merlin 1D first-stage engines shut down about two-and-a-half-minutes after launch and the single engine powering the rocket's second stage ignited for the first of two "burns" to continue the boost to orbit. A 12-second burn 55 minutes into flight finished the job, putting Jason-3 into its planned preliminary orbit.

Over the next 17 days, Jason-3 will be maneuvered into an nearly identical orbit with Jason-2, launched in 2008. Both spacecraft will fly over the same points, at the same time, allowing engineers to precisely calibrate Jason-3's instruments so its data are consistent with Jason-2's.

After about six months of flying in tandem, Jason-2 will be moved to a different orbital slot to improve global coverage.

"Jason-3, much like its predecessor Jason-2, will be able to measure the height of the ocean in an area that's about six miles across from 800 miles up with an accuracy of about one inch, so about the width of a quarter," said Josh Willis, Jason-3 project scientist at NASA's Jet Propulsion Laboratory in Pasadena, Calif.

"It's really quite an amazing feat. And if you average the data from one of these cycles of the Jason-3 or Jason-2 missions, you can actually get an accuracy for the levels of the oceans as a whole to better than half a centimeter, so really small. So we can really see the rise of the global oceans."

Since NOAA's first ocean altimetry mission in 1992 -- Topex/Poseidon -- and the first two follow-on Jason missions, global sea level has risen by about three millimeters per year, or about 2.8 inches over the past 23 years. It is expected to increase more rapidly in the years ahead.

"This is one of the most important yardsticks we have for human-caused climate change," Willis said. "With all the extra heat that's being absorbed by the oceans, the waters are expanding and of course, they are collecting the extra runoff from melting glaciers and ice sheets, which are also reacting to the warming climate.

"So these two things together cause global sea levels to rise. And in fact, that global rise is really our most powerful tool for measuring human-caused climate change."

Jason-3 is an international project with $177 million in funding from NOAA, which pays NASA for launch services, $119 million from EUMETSAT, the European Organization for the Exploitation of Meteorological Satellites, and $68 million from the French space agency CNES.

Self-filling bottle converts humid air into drinkable water

When water is scarce, why not pull it out of thin air? An industrial designer in Austria is hoping to do just that (well, sort of).

Kristof Retezár, a designer based in Vienna, invented a device that can extract humidity from the air and condense it into drinkable water. The handy gadget, dubbed Fontus, can be attached to a bike so that cyclists can generate water during long-distance rides through the countryside, where pit stops may be few and far between.

Fontus works using the basic principle of condensation, which can be easily demonstrated by taking something out of a refrigerator (for instance, a can of soda) and leaving it on the kitchen counter for a bit. Eventually, you'll notice moisture collecting on the sides of the object.

"This is simply condensation of the humidity that is contained in the air," Retezár told Live Science. "You always have a certain percentage of humidity in the air, it doesn't matter where you are -- even in the desert. That means you would always potentially be able to extract that humidity from the air."

The solar-powered device consists of a condensator (which functions like a cooler) that is connected to a series of hydrophobic surfaces that repel water. As the bike-mounted gadget takes in air, and these surfaces get cold, you're left with condensation, Retezár said.

"Because they're hydrophobic, they immediately repel the condensed water that they created, so you get a drop flow [into the bottle]," he explained. "Basically, you're taking air in a vapor state and converting it into a liquid state."

Fontus can produce 0.5 quarts (0.5 liters) of water in 1 hour in what is considered "really good" conditions, with temperatures between 86 degrees and 104 degrees Fahrenheit (30 to 40 degrees Celsius) and between 80 percent and 90 percent humidity, Retezár said.

The prototype includes a filter at the top to keep dust and bugs out of the water, but currently it does not include a way to filter out potentially harmful contaminants.

"The water you get is clean, unless the air is really contaminated," Retezár said. "We're thinking about making a bottle that also has a carbon filter, and this one would be for cities or areas where you might think the air is contaminated. But originally, this water bottle was thought to be used in nature, and places where you wouldn't have contaminated air."

Retezár is also working on a stand-alone version that uses an inverted ventilator to suck air into the system (rather than relying on the airstream created from a moving bike). This next-generation version could be used in regions of the world where humidity is high, but water is scarce.

"The idea was to solve a global problem: water issues in areas of the world where there is very little groundwater but very high humidity," Retezár said. "My intent was to invent a machine or device that would be able to filter the humidity in the air and turn it into drinkable water."

The initial Fontus design was shortlisted for the 2014 James Dyson Award, which helped Retezár gain exposure for the project, he said. Since then, he has received funding from the Austrian government that will help cover the technical development phase. The designer is also aiming to launch a crowdfunding campaign in March to cover the cost of mass-producing the devices. Retezár said he is aiming to keep the retail price for the Fontus under $100, and if all goes according to plan, the self-filling bottles could be commercially available in about nine or 10 months.