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Pollution


— Good Thinking

Student-designed device reduces gas lawnmower air pollution by over 90 percent

By - July 8, 2014 3 Pictures
Gas-powered lawnmowers are notorious polluters. According to the US Environmental Protection Agency, running a new gas mower for one hour produces as much air pollution as would be generated by 11 typical automobiles being driven for the same amount of time. Switching to an electric or reel mower is certainly one option, but for those applications where it's gotta be gasoline, a team of engineering students from the University of California, Riverside are developing another: an attachment that they claim reduces noxious emissions by over 90 percent. Read More
— Science

Nanoscale research may help preserve Leonardo da Vinci’s vanishing portrait

By - June 4, 2014 1 Picture
A famous red chalk on paper drawing, widely accepted as a self-portrait of Leonardo da Vinci, is rapidly deteriorating from the effects of years of exposure to pollution, light, and heat. Worst of all, many centuries in unregulated and humid storage has led to extensive yellowing and browning of the paper. Recently, however, researchers from Italy and Poland have developed a new non-destructive, nano-level method to identify the root causes of the degradation and assist in planning appropriate conservation strategies. Read More
— Science

Autonomous boats get disguised as crocodiles and used to study hippo poop

By - May 23, 2014 3 Pictures
Although hippos may look slow and docile, they're actually very aggressive, killing more people every year than any other large African animal. So, it would follow that you wouldn't want to swim anywhere near them. That's why when researchers from Yale University and the Cary Institute of Ecosystem Studies wanted to study the effects of hippo dung on water quality in Kenya's Mara River, they sent in three autonomous air boats instead of people. To help those boats blend in, they were dressed up as crocodiles. Read More
— Environment

University of Sheffield fights pollution with poetry

By - May 18, 2014 1 Picture
Air pollution is a problem in many of the world’s major cities and removing it requires 24/7 solutions, as well as a bit of imagination. Taking a literary run at the task, the University of Sheffield has revealed what it calls the “world’s first air-cleansing poem,” which is a combination of a new work by award-winning writer Simon Armitage and a chemical formula developed at Sheffield by Professor Tony Ryan. The hope is that it will not only raise awareness of air pollution, but also help persuade British industry to adopt the air-cleansing technology more widely. Read More
— Environment

Sponges made from wood waste may soak up oil spills

By - May 6, 2014 5 Pictures
As the Deepwater Horizon incident showed us, oil spills can be huge environmental disasters. That said, there are also considerable challenges in dealing with the waste products generated by the forestry and agriculture industries. Now, scientists from Switzerland's Empa research group have come up with a method of addressing the one problem with the other – they've developed sponges made from cellulose waste, that can soak up 50 times their own weight in oil. Read More
— Environment

Air-purifying billboard does the work of 1,200 trees

By - May 6, 2014 1 Picture
Billboards could do more than just advertise, if scientists at the University of Engineering and Technology (UTEC) in Peru have their way. While UTEC's earlier billboard produced drinkable water, its latest creation scrubs the air free of pollutants. According to the team, a single billboard can do the work of 1,200 trees, purifying 100,000 cubic meters (3.5 million cubic feet) of air daily in crowded cities. Read More
— Science

Water-testing pills draw on breath-freshening tech

By - May 1, 2014 1 Picture
Wondering if it's safe to drink the water from your remote village's well? Typically, the only way of finding out involves sending a sample of that water off to a lab, or using testing agents that must be shipped in and kept on dry ice. Now, however, scientists from Canada's McMaster University have developed simple pills that can do the job – and they were inspired by breath-freshening strips. Read More
— Automotive

Audi Online traffic light system helps drivers hit the green lights

By - March 16, 2014 3 Pictures
One of life's small but satisfying pleasures is hitting the sweet spot while driving across town and catching all the green lights. At the moment, having that happen is a matter of luck, but Audi is developing a system that will make never getting caught by a red light an everyday thing as a way of speeding up traffic while improving fuel efficiency and cutting emissions. Read More
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