Bicycle knowledge

Bicycle related knowledge  

Bicycle is a common means of transportation with a long history and cultural background.  Here are some basics about cycling:  

Types: Bicycles can be divided into many types, including road bikes, mountain bikes, folding bikes, etc.  Each type of bicycle has its own specific design and purpose.  1  

Structure and components: The bicycle is mainly composed of frame, wheels, driving system (including pedals, central axle, tooth disk, chain, flywheel, rear axle, rear wheel, etc.), braking system and auxiliary components (such as lights, bells, brackets, etc.).  

History: The history of the bicycle can be traced back to Huang Luzhuang during the Kangxi period of the Qing Dynasty, who was the first person in the world to create a device similar to the modern bicycle.  Subsequently, the French Siflac made a wooden bicycle in 1790, which is the first known bicycle in history.  2  

Operation skills: When riding a bicycle, you need to master some basic operation skills, such as how to park correctly, how to shift, how to control speed and so on.  3  

Maintenance: It is very important to check and clean the various parts of the bike regularly to ensure that the bike can operate properly.  This includes checking tire pressure, lubricating joints, replacing parts, etc.  

Physics: Bicycles are also involved in some physical principles, such as friction, pressure, leverage, optics and acoustics.  4  

To sum up, bicycle is a complex machine integrating mechanical, engineering, physics and other disciplines. It is not only a practical means of transportation, but also a platform for learning and exploring scientific knowledge.