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In the progress of human society, many time-saving and efficient tools have been invented, providing a lot of convenience to people's lives, and bicycles are one of them. With bicycles, the same distance is not only shortened a lot, but also saves a lot of effort to walk. Cycling is much less labor-saving than walking, there are several factors that decide, the most critical factor is that when people walk, in addition to bearing the friction between the soles of their feet and the ground, as well as bearing the weight from themselves, these will consume body energy, resulting in physical fatigue, cycling will be much easier.
First, the parts of the bicycle are advantageous transmission devices The bicycle has many parts, such as pedals, chains, flywheels, etc., which are constructed together to form an organic movement whole, driving the bicycle movement, and people can make the bicycle walk without spending a lot of effort when sitting on it. At the same time, the wheel rolling also has inertia, and people only need to deal with the friction between the wheel and the ground, which can achieve the purpose of saving effort. <>
Second, there are many factors of force when walking, people need to bear the weight of the body to move forward when walking, which will have a certain consumption of people's energy. When walking, you need to push your body backwards to make it move forward, which creates friction between the soles of your feet and the ground. People need to overcome these factors to move forward, and it takes a certain amount of energy.
So riding a bicycle with less force as compared to riding a bike. <>
The bicycle is a product invented by human beings for economic development and fast and convenient life, and its role is very significant. It also has a long history, and it has not been eliminated today with the changes in society, and there are still many people who use it in their daily lives. It can use the principle of science to reduce the force factor when walking, so as to achieve the purpose of saving force, is a very good means of transportation, brings a lot of convenience to human life, but also is a crystallization of human wisdom, embodies the creativity of human beings in social life, and fully embodies the charm and greatness of science.
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In the process of walking, a large amount of work is wasted, and part of the weight of supporting itself is consumed, and the distance traveled cannot exceed the maximum stride, which is also a waste of work. The bicycle is different, it has support frames, levers, transmission chains, large and small gears and other energy-saving measures, which not only saves the physical strength consumed to support the weight, but also the distance of movement is not limited by the stride. So riding a bicycle is less strenuous than walking.
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Because cycling is to use the strength of the feet to make the wheels rotate and then move forward, the center of gravity can be balanced in one place, which can save effort, and the speed of walking is slower, and the relative action time is longer, so it is more laborious.
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Because walking not only bears the weight of the body, but also bears the friction between the soles of the feet and the ground, and the bicycle completely avoids this situation, so riding a bicycle is less strenuous than walking.
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The friction of cycling is less than walking, which has the problem of the center of gravity, the center of gravity is unstable when walking, and the effort of walking is also more than the work done by the center of gravity, and cycling is inertia, and you can continue to move forward without stepping on the pedal, and walking will not move.
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Riding a bicycle only needs to overcome the friction between the ground and the tires and some drivetrain friction and wind resistance, and it does not do work in a vertical direction. Although walking only needs to overcome ground friction and wind resistance, it wastes most of the energy in the vertical direction, and the work done in the vertical direction is meaningless, so walking is of course more energy-consuming than cycling.
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Cycling enthusiasts are different from the popular shared bicycles. It is mainly reflected in the speed change and wisdom, climbing and mechanics, speed and speed, color and update, materials and technology, supporting and clothing, run-in and agility; 24-speed commuting, 27-speed fitness, 30-speed galloping on the streets, and 33-speed surface are the strongest! China's bicycle production enterprises are a big country, through technology, brand quality innovation, integration of resource marketing can be promoted to the international market!
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Because the friction borne by cycling is relatively small, and the friction borne by walking is relatively large, it is easier for people to ride bicycles.
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Why is cycling less effort than walking? With physical explanations, everyone can understand it at a glance.
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This relates to Theoretical Mechanics
In the case of the utility of the mobile phone gyroscope, it is easy to tilt the rear axle when the rotating object is inadvertently generated. However, to maintain the balance of cycling, or the key depends on human adjustment, naturally you use the bicycle wheel as a mobile phone gyroscope, the faster the speed, the slower the chaos, and the easier it is for people to adjust it to actually operate. Since there is a scope of adjustment, it can only be adjusted around the balance position, and it is impossible to adjust home if it is too much.
For example, BMX is better than BMX.
Good to ride, big wheel moment of inertia.
If you feel that the car is skewed to the left, the right leg will be more forceful, so that the car will go back to pull, and your center of gravity will be offset, which is also the perfect fitness exercise according to people and cars.
Adjust the angle of view of the car. The first control is to give additional centripetal force according to the slight turning of the handlebar.
to give the overall torque, and the overall skewed center of gravity point and the bottom of the tire do not have the same vertical parallel line.
caused by the gravitational moment equalization.
The combination of hands and feet is used to maintain the balance when riding a bicycle. Many people can ride a bicycle but it is not easy to ride a tricycle, because the principle of tricycle is different. In the case of riding a tricycle, one has to hold on to the handlebars and rotate the handlebars wherever he wants to turn.
This is not the case when riding a bicycle, as one will naturally experience the shift of the center of gravity of the bicycle and immediately adjust the position of the handlebars. A bicycle that produces a slight tilt can tilt to the side under the effect of gravity, but how to change the correct direction of the bicycle and do an oblique throwing motion.
The gravitational component caused by the tilt can be used as cohesion.
That way the bike won't be easy to tip over. Just like watching a bicycle event, the bike can not be vertical in the case of a turn, but it is not easy to fall. If you make small adjustments, you can ride the bike all the time and it won't be easy to fall.
Although this question seems relatively simple, many scientific researchers have so far only responded one-sidedly in written form, after all, the mysteries of the human body are very mysterious.
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Because the speed of the bicycle is relatively fast, it will be affected by the influence of gravity and conventions of the base of the talk, so it will ensure that the speed is relatively slow, and the speed will be swaying from side to side.
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Because the speed is comparatively better, the balance is better, and it can also have a better stability.
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Because in slow situations, humans cannot maintain balance and have no strength in their arms.
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The performance characteristics and riding experience of the bicycle are described below.
The performance characteristics of the bike are:The upright riding position, horizontal handlebars, and ability to handle bumps in the road make the hybrid bike an absolute deserved-deserved commuter bike for the best. In addition, since it usually has holes in its frame for mounting shelves, it is also quite nice to ride it to go shopping or make a simple trip.
A common hybrid bike configuration in the lower end of the market is a steel frame (or alloy frame) with a transmission and V-brakes. A mid-range car may have frame tubing with mechanical disc brakes, suspension forks, and pumped tubes. High-end cars are usually equipped with an internal transmission, hydraulic disc brakes, and a quality shock absorption system.
The riding feeling of the bicycle isLife is like cycling, you can only keep moving forward to avoid falling, everyone has their own riding style and attitude. Riding is a technical job, and it's not about pedaling on two feet. Riding is never about who starts riding fast, but about being able to stick to the end, scolding my mother every time I climb, but I will still climb in the future.
There are really a lot of single cyclists, and sometimes I don't know why I insist on riding, cycling is beautiful, not beautiful, lonely, and not lonely.
Bicycles, also known as bicycles or bicycles, are usually small land vehicles with two wheels. After people ride on the car, they are powered by pedals, which is a green and environmentally friendly means of transportation. This interpretation of the bicycle is scientific.
Hybrid bikes, as the name suggests, combine elements of traditional road bikes and mountain bikes to transform into the perfect vehicle for commuting or city riding.
Most of these models have 700c wheels paired with wider 700x32 tires, but there are some models that use 26-inch wheels and slightly narrower tires (inches or narrower tires wide). In addition, the use of pure or semi-bald tread is usually a feature of this type of car.
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Road bikes are suitable for smooth, good roads, and mountain bikes are suitable for rough and dirty ground. Riding comfort, mountain bikes are more comfortable than road bikes. Velocity; Road bikes are fast.
In terms of weight, mountain bikes are a bit bulkier. riding skills; Road bikes are a bit more demanding, and mountain riding is about the same as a normal scooter.
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Road bikes are designed for flat road riding, both the riding position and the body design will consider aerodynamics, and the road bike is also the lightest of all bicycle types;
If it is a speed, the mainstream road bike of the same level on the current market will be about 1 3 faster than mountain bikes;
Due to the different riding positions, short-distance road cycling is faster and more comfortable; But when it comes to long rides, mountain biking has an advantage!
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Cycling is less laborious than walking, which can be explained from a physical point of view from the following points.
First, the friction that needs to be overcome by cycling is small When we walk, the foot pushes the ground hard, and the sole of the shoe produces forward friction with the ground, so that we can walk forward, and the friction during this period is generated by the pressure of human gravity and the force of human foot on the ground, which belongsStatic friction
When riding, we pedal, and then through the chain drive to rotate the rear wheel, and then make the car forward, during which the rear wheel produces forward friction, so that the car forward, the front wheel belongs to the driven wheel, its friction backwards, is the force we need to overcome in riding, during this period the car from stationary to motion this process friction isStatic friction, the friction of the car during the normal forward movement isRolling friction
The magnitude of friction is directly proportional to the contact area between the object and the ground, as well as the magnitude of the pressure, that isThe larger the contact area, the greater the friction, and the greater the pressure, the greater the friction。When we walk, the contact area between the foot and the ground is greater than the contact area between the wheel and the ground, and the friction is relatively large.
andRolling friction is more than static frictionBe small. This is evident from the fact that when we ride a bike, it is much more strenuous when we first pedal than when we walk on the bike.
Second, cycling has inertia The bike has forward inertia after riding, so we can temporarily skip the pedal during the ride, and the bike can also move forward. WhileThere is no inertia of forward movement when walkingIf we don't go, we will stop.
Cycling has forward inertia, so it is less effort than walking without forward inertia.
Thirdly, the center of gravity is basically the same when we ride a bicycle When we walk, the center of gravity changes up and down. Normally, when we are upright, our center of gravity is probably near the navel, and when we walk, we are upThe center of gravity will move up and down。When the center of gravity is upward, it needs to consume people's energy, and this process has no effect on our progress, it is an extra work.
When riding, oursThe center of gravity is basically maintained at a heightThere is no change, and there is no additional work. So riding makes it relatively effortless.
The above three points are my physical analysis of the problem of riding a bicycle compared to walking, and I hope it can be recognized by the subject and everyone. It's not easy to code words, pay attention to encouragement, thank you!
In a word, high efficiency!
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When walking, in addition to supporting the weight of the whole body, the two feet also need to stare backwards to move the body forward, and it is very laborious to overcome the friction between the soles of the feet and the ground. And when a person rides a bicycle, it is the forward movement that takes advantage of the rolling of the wheels. It is mainly the friction between the wheels and the ground that one needs to overcome, and it takes much less effort to overcome this friction than the friction between the soles of the feet and the ground when walking.
In addition, it is easy to use force-saving transmissions such as pedals, chains, and flywheels on bicycles. In addition, when walking, the foot supports the weight of the whole body in addition to overcoming friction. Cycling sits on the frame and only treads on the pedals, so it is not as difficult as walking.
All in all, walking is more strenuous than riding a bike. In everyday life, if you have a bicycle, try not to walk and choose a way that makes you less strenuous to help reduce fatigue. In addition, the bicycle has a basket that can be loaded with a lot of items, making it easy to get around.
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Now more and more people will choose to ride a bicycle to travel or go to work, maybe for people in the past, cycling is just a way to travel, and now young people ride a bicycle to exercise, in fact, riding a bicycle is much more labor-saving than walking, people will overcome the friction on the ground when riding.
Therefore, cycling is more labor-saving than walking, because when we are riding a bicycle, we only need to overcome the friction between the tires and the ground, which means that the faster we pedal, the faster we will ride, and we are definitely not as fast as cycling. <>
With the continuous development of the times, now young people's health awareness is getting stronger and stronger, everyone takes cycling as a way of fitness, because the usual work is busy, so you can only choose to ride a bicycle instead of walking, so that you can also exercise every day to get to work, of course, the premise is to be on the flat road, riding a bicycle on the flat road is relatively fast, especially now many bicycles are racing, but if it is the kind of hillside or more rugged road, it may be more laborious to ride a bicycle, In fact, there is no way to compare many bicycles with the past, because now the bicycle is a kind of racing car, and it is more labor-saving and time-saving to ride. <>
In fact, cycling is also a green way to travel, much better than driving or riding an electric car, and he can also exercise, itself young people do not have much time to exercise, so they can only ride a bicycle by commuting, which is why many young people will choose to commute by bicycle The reason why I personally think this is a good low-carbon travel.
way, because we are more energetic when riding, the whole person is moving, so this way of riding is still very good, you can follow suit, of course, only limited to the kind of commuting distance is relatively short. <>
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Because the deformation of the tire is greater when it is flat, the resistance is greater, so the riding will be more tiring.