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Four African Teenagers Create Generator that Runs on Pee

What if human waste, what’s left after our bodies extract energy-producing nutrients from our food and cialis best buy drink, could itself be transformed into energy? Four African teenagers went beyond asking this question: they created a generator powered by human urine. The machine, built by 14-year-olds Duro-Aina Adebola, Akindele Abiola, Faleke Oluwatoyin, and 15-year-old Bello Eniola,was presented in Lagos, Nigeria at the fourth annual Maker Faire Africa this November. The pan-African Maker Faire features and supports inventions that work to address problems like the worldwide need for energy production.

According to the Maker Faire Africa website, the machine turns 1 liter of urine into 6 hours of electricity and works like this: urine goes into an electrolytic cell, which extracts the hydrogen from the pee (specifically from the urea, one of the main compounds of urine). This hydrogen is purified in a water filter, and then pushed into a gas cylinder. There, the gas cylinder pushes the hydrogen into a liquid borax cylinder, where moisture is removed from the hydrogen gas. Finally, the purified hydrogen gas is pushed into the generator to power it.

As with all new inventions in alternative energy, this generator isn’t a panacea for our global energy problems. NBC’s John Roach offers a “reality check” concerning the pee-powered generator, pointing out that the buy tramadol without prescription Maker Faire Africa website does not list the wattage produced, so we don’t know just how much the generator could power. While Roach’s article tempers excitement about the pee generator, it does point to where this technology could be used effectively: wastewater treatment facilities where the pee already flows, ready to be put to use.

Perhaps machines like these could eventually become features of look here what is the cost of levitra wastewater treatment facilities. Such a resourceful new invention that turns waste into electricity could turn wastewater treatment facilities into places where wastewater is viagra buying not only treated, but where pee turns into power.

via: Grist

image: CC BY 2.0 by Erik (HASH) Hersman


A Workspace Powered by Sitting

Swedish Designer Eddi Törnberg has designed the best human-powered work station we've seen yet because unlike other concepts that require you to viagra available in india do things like ride a bike while you're working, it doesn't require a person to do anything more than sit and work. The project, called "Unplugged," powers the various gadgets we use to work -- laptops, lamps, etc --through our small constant movements and body heat.

The desk chair is equipped with a metal seat that gets hot as a person emits body heat, but the canada viagra generic underside stays cools through a pattern of metal fins. Electricity is produced through the Seebeck Effect where an electric charge is created when a material is hot or warm on one side, but cool on the other.

The other energy-harvesting part of this set up is a rug that lies under the desk that is outfitted with piezoelectric crystals that generate electricity when pressure is applied to them. Each random shuffle, stomp, and rolling back and forth of the chair is a source of electricity.

The final part of Unplugged is plant-powered rather than human-powered. A potted plant provides electrcity through a process similar to a potato battery.

Unplugged is definitely more of a concept than a working product, but if this set-up were put to use, it could generate a nice chunk, though probably not all, of the energy needed to get through the workday.

via The Atlantic Cities

Images via Eddi Törnberg


EU Could Meet Emission Requirements Through Increased Bike Ridership

A new report released by the European Cyclists' Federation says that a quarter of the required emissions reduction target for 2020 could be met if all of free sample viagra without prescription the European Union had bike ridership levels like Denmark.

The Danish people ride on viagra lowest price generic average 2.6 km per day.  If all of the EU hit that mark, it would reduce emissions by 55 million to 120 million tons a year.  By 2020, that would represent five to 11 percent of the emissions target of a 20 percent reduction below 1990 levels.  If that level of ridership continued, by 2050 it would represent a slash of 63 to 142 million tons or 12 to 26 percent of the transportation sector targets.

Meanwhile in New York City, the transportation department is proving that adding bike lanes and making a city more bike-friendly will in fact increase ridership.  Since making major bike lane improvements in 2007, ridership in the Big Apple has doubled.  With a huge bike sharing program on its way, those numbers should continue to cialis 20 mg 10 pills go up.  See a breakdown of the increases in bike ridership here.

via Yale e360

Bill Gates Invests in Waste-to-Fuel Plant in Ghana

Bill Gates has turned his philanthropic sights to cleaner energy solutions in developing countries and buy cialis overnight delivery his current pet project is a new waste-to-fuel facility in Accra, Ghana.  The Bill and Melinda Gates Foundation is calling it a "Next-Generation Urban Sanitation Facility," but we know that behind that impressive title, it's really just human feces being turned into usable fuel.

The facility is being funded by a $1.5 million grant from the foundation and is being developed by Columbia University professor Kartik Chandran, Waste Enterprises and the Kwame Nkrumah University of Science and Technology.  It will process waste sludge into two energy sources:  biodiesel and methane.

While a cheap source of fuel will be of cialis canadian great benefit to the area, the possibly even greater benefit is it's great! cialis purchase that it will also keep human waste out of the local water supply, meaning less water-borne illnesses and a better quality of life for the prices on levitra pills local people.

via Fast Company

New York To Harvest Energy From Sewage Waste

New York City's sewage treatment plants will now be in the business of harvesting and selling renewable energy.  Heating fuel will be extracted from sludge, butanol (a gasoline alternative) extracted from the algae that grows in wastewater and, of course, methane gas will be captured from sewage plants' digesters.

The city's residents create 1.3 billion gallons of wastewater daily, which results in a daily yield of 1,200 tons of sludge being sent to landfills.  The city is looking for vendors to turn that sludge into renewable energy, fertilizer, and paving and building materials.  City officials plan to have contracts by 2013.

The city sewage plants already use half of buy low price levitra the methane produced by the digesters to provide about 20 percent of the electricity used by the plants, but now they'll be putting the rest on the market.  The Newtown Creek Wastewater Plant in Brooklyn already has a contract in the works with National Grid that will provide enough methane gas to best place to buy cialis heat 2,500 homes.

The city is also looking to build solar and wind installations at its wastewater treatment plants on Staten Island.

via NY Times


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