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Complex wiring of the nervous system may rely on a just a handful of genes and proteins

Researchers at the Salk Institute have discovered a startling feature of early brain development that helps to explain how complex neuron wiring patterns are programmed using just a handful of critical genes. ...

Medicine & Health / Research

created 17 hours ago | popularity 4.9 / 5 (9) | comments 1 | with audio podcast

Cannabis use doubles chances of vehicle crash

Drivers who consume cannabis within three hours of driving are nearly twice as likely to cause a vehicle collision as those who are not under the influence of drugs or alcohol claims a paper published today in the British ...

Medicine & Health / Health

created Feb 09, 2012 | popularity 1.8 / 5 (4) | comments 0

Major trial gives hope to motor neurone disease sufferers

Patients suffering from a devastating disease are being given fresh hope through an innovative trial being led by the Sheffield Institute for Translational Neuroscience (SITraN) and Sheffield Teaching Hospitals.

Medicine & Health / Diseases

created Feb 09, 2012 | popularity not rated yet | comments 0

Will bubble-powered microrockets zoom through the human stomach?

Scientists have developed a new kind of tiny motor — which they term a "microrocket" — that can propel itself through acidic environments, such as the human stomach, without any external energy source, ...

Nanotechnology / Nanomaterials

created Feb 08, 2012 | popularity 5 / 5 (3) | comments 1

Researchers find additional benefits of cord blood cells in mice modeling ALS

Repeated, low-dose injections of mononuclear cells derived from human umbilical cord blood (MNC hUCB, tradename: U-CORD-CELL) have been found effective in protecting motor neuron cells, delaying disease progression and increasing ...

Medicine & Health / Research

created Feb 06, 2012 | popularity not rated yet | comments 0 | with audio podcast

More efforts needed to address motor vehicle deaths among American Indians and Alaska Natives

More research and programs are needed to address the elevated rate of motor vehicle-related deaths among American Indian and Alaska Native populations, according to new research from the Johns Hopkins Center for Injury Research ...

Other Sciences / Social Sciences

created Jan 30, 2012 | popularity not rated yet | comments 0

New California rules require cleaner cars

California, long a national leader in cutting auto pollution, pushed the envelope further Friday as state regulators approved rules to cut greenhouse gas emissions from cars and put significantly more pollution-free vehicles ...

Technology / Energy & Green Tech

created Jan 30, 2012 | popularity not rated yet | comments 1

Iowa State engineer wants to 'sculpt' more powerful electric motors and generators

Dionysios Aliprantis took up an imaginary hammer and chisel and pounded away at the air.

Technology / Energy & Green Tech

created Jan 26, 2012 | popularity 4.6 / 5 (5) | comments 3

Scorpions inspire scientists in making tougher surfaces for machinery

Taking inspiration from the yellow fattail scorpion, which uses a bionic shield to protect itself against scratches from desert sandstorms, scientists have developed a new way to protect the moving parts of ...

Chemistry / Materials Science

created Jan 25, 2012 | popularity 4.6 / 5 (8) | comments 3 | with audio podcast

DNA motor programmed to navigate a network of tracks

Expanding on previous work with engines traveling on straight tracks, a team of researchers at Kyoto University and the University of Oxford have successfully used DNA building blocks to construct a motor ...

Nanotechnology / Bio & Medicine

created Jan 22, 2012 | popularity 5 / 5 (7) | comments 2 | with audio podcast

Stephen Hawking misses second 70th birthday party

British scientist Stephen Hawking was forced to miss a second celebration of his 70th birthday due to illness, organisers said late Thursday.

Physics / General Physics

created Jan 20, 2012 | popularity 4 / 5 (1) | comments 0

No walk in the park: Factors that predict walking difficulty in elderly

Yale School of Medicine researchers have found that the likelihood of becoming disabled with age increases with the following factors: having a chronic condition or cognitive impairment; low physical activity; slower gross ...

Medicine & Health / Health

created Jan 16, 2012 | popularity 4 / 5 (1) | comments 0 | with audio podcast

Improving the performance of electric induction motors

The School of Engineers in Eibar (UPV/EHU-University of the Basque Country) was where Patxi Alkorta, a local professor, defended his thesis, following his research into advanced motor control devices. These control devices ...

Technology / Engineering

created Jan 12, 2012 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Treatment with light benefits Alzheimer's patients, study finds

Exposure to light appears to have therapeutic effects on Alzheimer's disease patients, a Wayne State University researcher has found.

Medicine & Health / Diseases

created Jan 11, 2012 | popularity not rated yet | comments 0

Detroit unsure over the future of green cars

The US auto industry remains unsold over the future of "green cars" such as electrics and hybrids, as carmakers struggle with the first steps in a market most agree shows promise over the long term.

Technology / Energy & Green Tech

created Jan 11, 2012 | popularity 5 / 5 (3) | comments 27

Motorcycle

A motorcycle (also called a motorbike, bike, or cycle) is a single-track, two-wheeled motor vehicle. Motorcycles vary considerably depending on the task for which they are designed, such as long distance travel, navigating congested urban traffic, cruising, sport and racing, or off-road conditions.

Motorcycles are one of the most affordable forms of motorised transport in many parts of the world and, for most of the world's population, they are also the most common type of motor vehicle. There are around 200 million motorcycles (including mopeds, motor scooters, motorised bicycles, and other powered two and three-wheelers) in use worldwide, or about 33 motorcycles per 1000 people. This compares to around 590 million cars, or about 91 per 1000 people. Most of the motorcycles, 58%, are in the developing countries of Asia — Southern and Eastern Asia, and the Asia Pacific countries, excluding Japan — while 33% of the cars (195 million) are concentrated in the United States and Japan. In 2006 China had 54 million motorcycles in use and an annual production of 22 million units. As of 2002[update], India with an estimated 37 million motorcycles/mopeds was home to the largest number of motorised two wheelers in the world. China came a close second with 34 million motorcycles/mopeds.

For more information about Motorcycle, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.