News tagged with cycling
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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Split-cycle engine now more efficient than traditional combustion engine (w/ Video)
(PhysOrg.com) -- Split-cycle engines have been around for some time but until now have never matched the fuel efficiency of traditional internal combustion engines. That is about to change, with the latest ...
Jan 24, 2011 |
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Forecasters keep eye on looming 'Solar Max'
The coming year will be an important one for space weather as the Sun pulls out of a trough of low activity and heads into a long-awaited and possibly destructive period of turbulence.
Dec 29, 2010 |
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What's down with the Sun? Major drop in solar activity predicted
(PhysOrg.com) -- A missing jet stream, fading spots, and slower activity near the poles say that our Sun is heading for a rest period even as it is acting up for the first time in years, according to scientists ...
Space & Earth / Space Exploration
Jun 14, 2011 |
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'Nanoscoops' could spark new generation of electric automobile batteries
An entirely new type of nanomaterial developed at Rensselaer Polytechnic Institute could enable the next generation of high-power rechargeable lithium (Li)-ion batteries for electric automobiles, as well as ...
Nanotechnology / Nanomaterials
Jan 04, 2011 |
4.7 / 5 (24) |
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Water supersaturation in the Martian atmosphere discovered
(PhysOrg.com) -- New analysis of data sent back by the SPICAM spectrometer on board ESA's Mars Express spacecraft has revealed for the first time that the planet's atmosphere is supersaturated with water vapour. ...
Space & Earth / Space Exploration
Sep 29, 2011 |
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Babies' biological clocks dramatically affected by birth light cycle
The season in which babies are born can have a dramatic and persistent effect on how their biological clocks function.
Medicine & Health / Neuroscience
Dec 05, 2010 |
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Major report released by MIT: No shortage of uranium for nuclear energy, more research needed
Uranium supplies will not limit the expansion of nuclear power in the U.S. or around the world for the foreseeable future, according to a major new interdisciplinary study produced under the auspices of the MIT ...
Technology / Energy & Green Tech
Sep 17, 2010 |
4.6 / 5 (18) |
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Clear link between solar activity and winter weather revealed
Scientists have demonstrated a clear link between the 11-year sun cycle and winter weather over the northern hemisphere for the first time.
Space & Earth / Earth Sciences
Oct 10, 2011 |
4.5 / 5 (18) |
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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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Activated graphene makes superior supercapacitors for energy storage
(PhysOrg.com) -- Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have helped to uncover the nanoscale structure of a novel form of carbon, contributing to an explanation of why ...
Nanotechnology / Nanomaterials
May 12, 2011 |
5 / 5 (14) |
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New kind of fuel cell delivers energy and fine chemicals with no waste from renewable raw materials
(PhysOrg.com) -- The concept of converting renewable raw materials so cleverly that the same process simultaneously produces both energy and industrially desirable chemicals has been high on the wish-list ...
Sep 24, 2010 |
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First plants caused ice ages: research
New research reveals how the arrival of the first plants 470 million years ago triggered a series of ice ages. Led by the Universities of Exeter and Oxford, the study is published today (February 1, 2012) in Nature Geoscience.
Space & Earth / Earth Sciences
Feb 01, 2012 |
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Spent nuclear fuel is anything but waste
Failure to pursue a program for recycling spent nuclear fuel has put the U.S. far behind other countries and represents a missed opportunity to enhance the nation's energy security and influence other countries, the former ...
Technology / Energy & Green Tech
Feb 20, 2011 |
4.6 / 5 (11) |
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'Animal embryo' fossils are actually microbes (Update)
Tiny fossils that scientists have thought for decades were the embryos of the earliest animals ever found have turned out to be the remains of much simpler microbial organisms.
Other Sciences / Archaeology & Fossils
Dec 22, 2011 |
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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.
