Electricity is arguably the greatest discovery ever made by mankind, and it forms the basis of all our modern life. Today's earth, even if there is a momentary worldwide power outage, the consequences are unimaginable. Therefore, as electrical appliances are more and more invented, human demand for electricity is also increasing.
For this reason, in order to generate electricity, humans have tried almost any method that can produce energy. Matter combustion, hydropower, wind power, solar power and even nuclear power, the total installed capacity has repeatedly exceeded the limit, and the annual power generation has also increased. But even so, there are still about 20% of the world's population without electricity.
So more and more people began to explore newer power generation methods to achieve the goal of making full use of various energy to generate electricity. For example, today we want to discuss the topic: human body power generation.
Not only does it make you healthy, but it also gives you electricity
People move every day, whether walking, working, or exercising, as long as they move, there will be a slight power generation. The energy produced by a person is negligible, but even if the 7 billion people on earth just walk, the energy produced will be a considerable amount of electricity. So, someone really came up with a way to use people to walk to generate electricity.
At present, a considerable part of the street lights on both sides of the road are powered by solar energy, but the lumbar disc of Boulder Square in Las Vegas is particularly prominent.
A company named engoplanet has developed a clean energy street lamp for it, which is connected to the pedal equipped with three mini generators. Every time someone stepped on this pedal, about 5 watts of electricity would be generated and then transferred to the battery.
Las Vegas is not the primary location for this technology. Before this, the British had already put this kind of pedal into the supermarket. Imagine if this technology is very mature, what a contribution to human power.
People can generate electricity by walking lightly, so what if they are put into the field of sports competitions?
For example, the World Cup that has already opened has one piece under each turf; the floor of all NBA team venues has been replaced with a power generation floor. Not only can athletes run to generate electricity, but basketball can also generate electricity when they hit the ground; The focus of the track is to put a light bulb. The faster you run, the greater the instantaneous power generation and the brighter the light bulb.
So, naturally, some people proposed to use motion to generate electricity. A gym in the United States uses the energy generated when people exercise to provide all the electricity needed to light up the venue.
It is said that if 20 people use this fitness generator for 4 hours a day, they can produce more than 300 kilowatts of electricity in a month.
Moreover, while you exercise, you can still see that the amount of electricity created by your fitness is increasing little by little, so will your fitness spirit become more and more vigorous? Environmentalists will love this invention very much.
Among the two ways of using human's own motion to generate electricity, fitness power generation is the most discussed. Because fitness is a content that releases the most energy and has a huge group, and it is not a big problem to realize the collection of these energy. However, it has not been widely used in reality.
The main reason should be the ratio of cost to return. In terms of 20 people producing 300 kilowatts of electricity a month, each machine generates 15 kilowatts of electricity in a month. If the electricity cost per kilowatt is 5 cents, 7.5 yuan of electricity is sent out in a month ... and the actual enterprise sells electricity It's cheaper.
Then, when a company really wants to go bankrupt, it can't return its capital.
Even if it is very environmentally friendly and effective, for companies, profits are the first. Therefore, use it purely for power generation, unless the cost is reduced very low. And now it is more provided to B-end customers for cost-saving purposes.
Since the value of external power generation of the human body is very limited, do you want to try it with blood?
People with fever may do anything else, but the power generation bank
Compared with the visible power such as running and walking to generate electricity, it is much more high-tech to use the internal tissues of the human body to generate electricity. Some people may not understand why: There is no air in the body and there is no air. Where can we generate electricity? What is used to generate electricity?
Scientists have a solution. Next, we will briefly introduce a few.
Blood generates electricity. Dmitry, a crazy artist in Russia, made a power plant to provide the electricity needed for his concert. So what drives this power plant? It's blood.
Dmitry drew a total of 4.5 liters of blood from himself in batches to keep the device running. But is this what we want to say about blood power generation? of course not.
There are currently two main ways of generating electricity in blood. One is to use the flow of blood itself to generate electricity. Fudan University implanted fibers with a diameter of 0.8 mm into human blood vessels, and then obtained energy from the flowing blood.
It inserts the fiber into the nanotube, and then connects a copper wire at both ends of the nanotube. When blood flows, it can generate electricity.
Unlike blood flow, Japanese scientists have adopted biochemical methods. It has developed a fuel cell that uses sugar in the blood to generate electricity. The battery is coated with an enzyme that breaks down the glucose in the blood. After the glucose is broken down, it generates electrons, which in turn produce electricity.
The advantages of this battery are obvious, as long as people live, it will always have electricity.
Muscle movement generates electricity. The maximum energy that the human body can generate comes from muscles, so muscle power generation has naturally become the focus of attention. Scientists at the Karlsruhe Institute of Technology in Germany have developed two ways to use muscles to generate electricity.
One is to bind a generator to the lower limbs, which can use the induction of moving magnets and coils to generate electricity. By sensing changes in the person's center of gravity, the magnet moves continuously and then generates electricity.
Another way is to put a fluid pad in the shoe, the liquid will continue to flow through walking, thus forming a hydraulic pump in the hose. In repeated movements, electricity is generated.
Body heat power generation. There is a Zebeck effect in physics. Specifically, when two different metals are connected to form a closed loop, if the temperature of the two connection points is different, a tiny voltage can be generated. The greater the temperature difference, the greater the voltage generated.
Humans are constant temperature animals. Under normal circumstances, there will be a temperature difference between the human body and the air. Then, this temperature difference provides conditions for the generation of current. If a micro-generator is glued to the surface of the skin, current will appear in the circuit.
A body temperature flashlight called Lumen has been invented. The human body can generate 15 milliamps of current by touching Lumen, which is enough to charge the LED bulb.
The scenarios we can imagine from this are that the human body generates more electricity in winter than in summer, the mountaintop generates more electricity than the foot of the mountain, and the person with fever generates more electricity than normal people. , You can also provide more power to your phone because of a fever ...
In addition, there are tear power generation, sweat power generation, urine power generation, hair power generation, eardrum power generation, etc. It can be said that in order to generate power, humans have been touched all over the body.
But some people may also ask: the electricity generated by these power generation methods may not add up as much as a treadmill. Is it really necessary to develop it with all my heart?
I want to give an affirmative answer: Yes.
What bicycle do you want? I want to make my own power bank
The first problem that can be solved by using the human body to generate electricity is the charging of implanted devices in the body.
At present, it is prevalent to implant a microelectronic system to detect human health in the human body, which can achieve all-weather detection and reporting of human physiology and case levels, so as to issue corresponding instructions to provide early warning for human diseases.
Then, the sublimation battery that uses blood to generate electricity can be said to perfectly solve the electricity problem of the electronic system.
In addition, it will also provide great help in the power supply of cardiac pacemakers, insulin pumps, and various implanted chips. At least no surgery.
The most important thing is that these devices implanted in the human body are small in size, and they do not require much power to maintain operation. It is better to use the human body to provide electric power support.
Another possibility for the human body to generate electricity is to turn people into a living mobile charging treasure. Although the power generation of a device is very small, if humans can overcome various difficulties and implant various power generation methods into the human body without damaging their health, then it will certainly get a considerable sum of electricity.
These power may solve the charging problems of your mobile phones, watches, electronic cigarettes and other devices. From then on, the mobile charging treasure will be placed in the historical showcase.
But these two points are facing a common problem: power transmission. How can electricity delivered from blood be delivered to a pacemaker or insulin pump? In this process, will the current affect human health?
As for the second question, if you want to transfer the electricity in the body to the body, you can't export it by inserting a wire in the body. It looks a bit strange after all. Then, the wireless charging technology must achieve a vigorous development.
It seems that human body generating electricity is a distant thing, but it really happened in this magical world. After it has been proven that these methods can indeed collect current and store it, we can say that we can do it.
Just as humans are going from infants to adults, human body power generation technology is only in the infants. Although the future is unknown, maintaining trust in technology forever should be people's eternal enthusiasm.
After all, the current charging treasure is too heavy.
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