Word: hydrogens
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...focus on wind continues, but today Riso - now part of the United Nations Environment Programme (UNEP) - is a global leader in hydrogen fuel-cell research, which could eventually provide a viable storage technology to counter the challenge of intermittent renewables like wind. "Environmental technology is something that can drive industrial exports for Denmark," says John Christensen, head of the UNEP Riso Centre on Energy, Climate and Sustainable Development. "We can and should take advantage of this...
...Sebring CitiCar, which was a boxy, even more miniature version of its miniscule Indian predecessor, the REVA, one of the world's best-selling electric cars. One of the most important changes those cars exhibited was a reliance on fuel cells, which produce electricity from some form of fuel (hydrogen, hydrocarbons and alcohol have all been used) as an alternative to batteries. While this helped increase speeds, it didn't help sales take off and ultimately defeated the purpose of a more environmentally friendly, non-fuel reliant automobile. Better versions of electric cars arrived over the next two decades...
...easy entity to peg. Drawing a map of it has been likened to describing the town you're in when you've never ventured beyond the confines of your bedroom. In 1958, Jan Oort became the first to map the galaxy, by assessing the strength of neutral atomic hydrogen gas, a widespread component of the Milky Way. Pohl created his map using a kinetic model of the galaxy's gas flow, which was developed by Peter Engelmeier of the University of Zurich and Nicolai Bissantz of Ruhr University in Bochum, Germany, based on infrared data collected by a NASA satellite...
...could truly appreciate the global slowdown until the invention of the atomic clock, which uses the oscillation frequencies of atoms such as cesium, hydrogen or rubidium to mark the passage of time. According to Andrew Novick, an engineer with the time and frequency division of the National Institute of Standards and Technology (NIST), there exist three types of atomic clocks: primary standard clocks, which are state-of-the-art instruments owned by only a handful of nations, such as Germany, Britain and the U.S. (there's one at NIST); smaller, rack-mounted commercially available versions that can cost as much...
...process is called, stops nonwater molecules - including viruses and pharmaceuticals. (The last part is particularly important; an Associated Press investigation earlier this year found trace amounts of prescription drugs in the drinking water of more than 40 million Americans.) Lastly, the filtered water is treated with the disinfectant hydrogen peroxide, and then dosed with ultraviolet light, which neutralizes anything that might remain. What's left is as pure as distilled water - and I can say from personal experience that it tastes perfectly fine. "This is the future of water treatment," says Markus...