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Bicycle

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What is Bicycle?

A bicycle, or bike, is a small, human powered land vehicle with a seat, two wheels, two pedals, and a metal chain connected to cogs on the pedals and rear wheel. A frame gives the bike strength, and the other parts are attached to the frame. It is powered by a person riding on top, who pushes the pedals around with his or her feet.

Riding bicycles, which is also called cycling, is an important way to travel in several parts of the world. It is also a common recreation, a good form of low-impact exercise, and a popular sport. Road bicycle racing is the second most popular spectator sport in the world. Bicycling uses less energy per mile than any other human transport.

 

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History of Bicycle:-

1817—Draisienne or the "Running Machine": Invented by Barn Karl von Drais, Germany; this machine was less like a bicycle, in the modern sense of the word. It did have a typical bicycle frame and two wheels, but it was propelled by walking (apparently the bicycle allowed more of a gliding walk), as opposed to peddling.

1860s—Velocipede or Boneshaker: Two-wheeled bicycle with pedals and cranks on the front wheel. It was known as the bone shaker because the combination of a wood frames and metal tires made for a very uncomfortable ride over cobblestone streets.

1870s—High-wheeled bicycle: One of the first models to be called a "bicycle" (after its two wheels). The high wheel allowed the rider to travel farther with a single rotation of the pedals. Moreover, a metal frame and rubber tires provided a more comfortable ride than the boneshaker.

1885—Rover Safety bicycle: Invented by John Kemp Starely, England; Featured a strong enough metal to make a chain, plus it had two same-sized wheels and a similar frame to today’s bicycles.

1888—Pnuematic tires: Invented by John Boyd Dunlop, Ireland; Develops air-filled tires that provide a smoother ride than the previously used hard-rubber tires.

 

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Bicycle safety tips:-

1. Wear a Properly Fitted Bicycle Helmet. Protect your brain, save your life.

2. Before riding, inflate tires properly and check that your brakes work.

3. Always ride with at least one hand on the handlebars. Carry books and other items in a bicycle carrier or backpack.

4. Watch for and Avoid Road Hazards. Be on the lookout for hazards such as potholes, broken glass, gravel, puddles, leaves, and dogs.

5. Avoid Riding at Night.  

6. Look both ways for traffic.

7. Wear bright clothes.

 

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