News tagged with cycling
Gourmet butterflies speed north: study
A new study led by scientists in the Department of Biology at the University of York has shown how a butterfly has changed its diet, and consequently has sped northwards in response to climate change. Their study is published ...
May 24, 2012 |
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New study provides baseline measurements of carbon in Arctic Ocean
Scientists from the Woods Hole Oceanographic Institution (WHOI) have conducted a new study to measure levels of carbon at various depths in the Arctic Ocean. The study, recently published in the journal Biogeosciences, provid ...
Space & Earth / Earth Sciences
May 21, 2012 |
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Earth's water cycle intensifying with atmospheric warming
A clear change in salinity has been detected in the world's oceans, signalling shifts and an acceleration in the global rainfall and evaporation cycle.
Space & Earth / Earth Sciences
May 21, 2012 |
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Study ups plant CO2 intake estimates
Plants may be able to limit the impact of our CO2 emissions even more than we previously thought, an innovative new experiment suggests.
May 21, 2012 |
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Toxic mercury, accumulating in the Arctic, springs from a hidden source
(Phys.org) -- Environmental scientists at Harvard have discovered that the Arctic accumulation of mercury, a toxic element, is caused by both atmospheric forces and the flow of circumpolar rivers that carry ...
Space & Earth / Earth Sciences
May 21, 2012 |
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Pollution teams with thunderclouds to warm atmosphere
Pollution is warming the atmosphere through summer thunderstorm clouds, according to a computational study published May 10 in Geophysical Research Letters. How much the warming effect of these clouds offsets the cooling that o ...
Space & Earth / Earth Sciences
May 18, 2012 |
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New key mechanism in cell division discovered
Researchers from the Bellvitge Biomedical Research Institute (IDIBELL) have identified the mechanism by which protein Zds1 regulates a key function in mitosis, the process that occurs immediately before cell division. The ...
May 18, 2012 |
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A practical guide to green products and services
A new report published today by the European Commission's in-house science service, the Joint Research Centre (JRC), provides key information for policy makers and business managers on how to assess the environmental impacts ...
May 15, 2012 |
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New nanostructure for batteries keeps going and going
(Phys.org) -- For more than a decade, scientists have tried to improve lithium-based batteries by replacing the graphite in one terminal with silicon, which can store 10 times more charge. But after just a ...
May 11, 2012 |
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Nasa's new carbon-counting instrument leaves the nest
(Phys.org) -- Its construction now complete, the science instrument that is the heart of NASA's Orbiting Carbon Observatory-2 (OCO-2) spacecraft - NASA's first mission dedicated to studying atmospheric carbon ...
Space & Earth / Earth Sciences
May 11, 2012 |
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Researchers map fish species at risk from dams
Dams are believed to be one of the biggest threats to freshwater organisms worldwide: They disrupt normal patterns of water and sediment flow, impede migration, and alter the character of spawning and feeding grounds. A shortage ...
May 10, 2012 |
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Atmospheric warming altering ocean salinity
The warming climate is altering the saltiness of the world's oceans, and the computer models scientists have been using to measure the effects are underestimating changes to the global water cycle, a group ...
Space & Earth / Earth Sciences
Apr 27, 2012 |
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Scientists solve a mystery of bacterial growth and resistance
Scientists at The Scripps Research Institute have unraveled a complex chemical pathway that enables bacteria to form clusters called biofilms. Such improved understanding might eventually aid the development ...
Apr 26, 2012 |
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Better treatment for tuberculosis possible with biochemist's findings
Recent discoveries by a Virginia Tech biochemist could lead to a more effective drug design to combat the bacteria responsible for tuberculosis infection. Spread through the air from one person to another, tuberculosis is ...
Apr 16, 2012 |
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North American rivers are a sizable source of atmospheric carbon
To fulfill the need for an ever more accurate and complete understanding of the flow of carbon through the Earth system, a flurry of research has taken place in the past decade on previously overlooked aspects of the carbon ...
Space & Earth / Earth Sciences
Mar 31, 2012 |
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Cycling
Cycling, also called bicycling or biking, is the use of bicycles for transport, recreation, or for sport. Persons engaged in cycling are cyclists or bicyclists. Apart from ordinary two-wheeled bicycles, cycling also includes riding unicycles, tricycles, quadracycles, and other similar human-powered vehicles (HPVs).
Bicycles were introduced in the 19th century and now number about one billion worldwide. They are the principal means of transportation in many regions.
Cycling is a very efficient and effective mode of transportation optimal for short to moderate distances. Bicycles provide numerous benefits compared to motor vehicles, including exercise, an alternative to the use of fossil fuels, no air or noise pollution, much reduced traffic congestion, easier parking, greater maneuverability, and access to both roads and paths. The advantages are at less financial cost to the user as well as society (negligible damage to roads, and less pavement required). Criticisms and disadvantages of cycling include reduced protection in crashes, particularly with motor vehicles, longer travel time (except in densely populated areas), vulnerability to weather conditions, difficulty in transporting passengers, and the skill and fitness required.
For more information about Cycling, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
