Modern is an era of electricity. People are used to electric lights, radio, television and telephone. It is hard to imagine what life would be like without electric lights.
When there is a power failure, people in the flickering candlelight, cars hesitate in the street because of no traffic lights, and food rots in the silent refrigerator. Only two centuries ago, did people begin Understand how electricity works. Obviously, nature has been experimenting in this field for millions of years.
More and more scientists have discovered that there may be many interesting secrets of electricity in the living world. These secrets may be beneficial to the tiny pulses sent out by all living cells of human beings. When the heart beats, it will send out recorded pulses and form an electrocardiogram.
Doctors can study the ECG to determine how the heart works. The brain also sends out brain waves, and most of the living cells produce them But in some animals, some muscle cells have become very specialized. When these cells are connected in large numbers, they do not function as muscle cells at all.
The effect may be surprising. The eel is a kind of magic battery that can generate up to 800 Volts of electricity through the water it lives in（ The electric current in an electric eel is only 120 volts, and four fifths of its batteries are specially used to generate electricity, and the impact force it can transmit roughly corresponds to the length of its body.
Electricity is a form of energy that is essential for modern life. It powers almost all the devices and machines we use, from smartphones and computers to refrigerators and electric cars. Electricity is produced from various sources such as coal, natural gas, nuclear power, hydroelectricity, wind and solar power.
Electricity has transformed the way we live and work. It has made communication faster and easier, allowing people to connect with each other from all over the world. It has also made transportation more efficient and convenient, enabling us to travel long distances quickly and safely.
However, electricity production can also have negative impacts on the environment. The burning of fossil fuels for electricity generation releases greenhouse gases which contribute to climate change. Nuclear power plants produce radioactive waste which can be hazardous to human health and the environment.
To mitigate these negative impacts, efforts are being made to transition to cleaner and more sustainable sources of electricity such as wind, solar and hydro power. Energy conservation and efficiency measures are also being promoted to reduce overall electricity consumption.
In conclusion, while electricity has greatly improved our lives, it is important to recognize the environmental consequences of its production and use. It is vital that we continue to find ways to generate electricity sustainably and reduce our dependence on fossil fuels.
Of all forms of energy, electricity is the most useful in our daily life. At night, the roads are brightly lit to enable pedestrians and vehicles to move. The use of neon lights in advertising has become one of the characteristics of every modern city.
Even at home, many labor-saving liances are driven by electricity, but electricity is OK. If handled improperly, it may cause burns or fires, but it may lead to electric shock or even death. Our socialist construction is developing rapidly, and the demand for electricity is growing.
We are trying to produce more electricity and make better use of it to realize the four modernizations.