(AP) -- For years, visitors wanting to see Denali National Park's grizzly bears, moose, sheep and caribou have had to ride school buses that polluted the air and spoiled the tranquility with their noisy, carbon dioxide-spewing diesel engines.
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As a river runs through it, a Death Valley stream offers insights into flooding and climate change
Death Valley may be known by its three superlatives: hottest, driest, and lowest – as in temperature, rainfall, and elevation in the United States. But it was the flow of water through the National Park that attracted Boston College Geologist Noah P. Snyder to the desert of eastern California.
Diesel exhaust fumes affect people with asthma, study finds
Diesel exhaust fumes on polluted streets have a measurable effect on people with asthma, according to the first study looking at exhausts and asthma in a real-life setting, published on 6 December in the
New England Journal of Medicine.
Challenges remain in reintroducing American chestnut
Researchers have developed a breed of American chestnut that is resistant to the fungal blight that decimated its population in the early 1900s.
Cornell team will compete to build 100-mpg car
Cornell faculty, engineering students and MBA candidates are planning to compete for the Automotive X Prize, which offers a multimillion-dollar award for the team that builds a practical, marketable 100-mpg car.
Nanocomposite labeled cancer cells can be targeted and destroyed using lasers
A nanocomposite particle can be constructed so that it has a mix of properties that would not otherwise happen in nature. By combining an organic matrix with metallic clusters that can absorb light, it is possible to incorporate such particles into cells and then destroy those targeted cells with a laser.
Nanocomposite labeled cancer cells can be targeted and destroyed using lasers
A nanocomposite particle can be constructed so that it has a mix of properties that would not otherwise happen in nature. By combining an organic matrix with metallic clusters that can absorb light, it is possible to incorporate such particles into cells and then destroy those targeted cells with a laser.
New process generates hydrogen from aluminum alloy to run engines, fuel cells
A Purdue University engineer has developed a method that uses an aluminum alloy to extract hydrogen from water for running fuel cells or internal combustion engines, and the technique could be used to replace gasoline.
Driverless transport in big cities
While traffic problems in major cities have been familiar for a long time, the measures needed to deal with them have still to be put into effect. However, in its 6th Framework Programme, the EU is beating the big drum and looking for more efficient transport solutions in big cities, as well as more rational use of motor traffic. New traffic solutions such as completely automated vehicles moving on tracks, cars in defined corridors (cybercars) and bi-modal vehicles that can alternate between automatic and manual control, will aim to reduce traffic queues and pollution.
