"Humanity Enters the Electric Age" The World in the Era of Monopoly Capitalism PPT Courseware 4

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"Humanity Enters the Electric Age" The World in the Era of Monopoly Capitalism PPT Courseware 4

1. The arrival of the “electrical age”

think:

1. Understand the generation and development of electricity. When did electricity enter the production field? What appliances and electric vehicles were invented subsequently?

2. As a new energy source, what advantages does electricity have over steam power? (If you were the director of a factory, would you choose electricity or steam as power?)

3. Which two countries are at the forefront in terms of power technology?

1. Generation and application of electricity

In 1831, British scientist Faraday discovered the phenomenon of electromagnetic induction, which provided the basic principle for making generators. In 1866, the German Siemens developed a generator, but this generator had many shortcomings. After the unremitting efforts of many people, it was not until the 1970s that generators entered the actual production field.

2. As a new energy source, what advantages does electricity have over steam power? (If you were the director of a factory, would you choose electricity or steam as power?)

Answer: The power transmission speed is fast, the transmission loss is small, it is easy to use, clean and efficient, and the price is cheap (steam pollution and consumption are large)

3. Countries at the forefront: the United States, Germany

2. Edison, the “King of Inventions”

Edison (1847~1931) main inventions:

Alkaline batteries, general printing presses, improved typewriters, phonographs, incandescent lamps, the first central power plant, large stone crushers, fax telegraphs, talkies, torpedo mechanisms, flamethrowers, underwater periscopes, etc.

P125 Use your brain

What would our lives be like without electricity?

It can be thought of that when there was no electricity today, many electrical appliances could not be used, and it was dark at night, etc., which brought great inconvenience to our lives.

Before there were electric lights, what methods did our ancestors use to light up at night? What problems might arise?

At that time, people mostly used kerosene lamps, gas lamps and candles for lighting; the lighting range was small, the brightness was poor, and the pollution was heavy, making it unfavorable for widespread use.

3. The advent of automobiles and airplanes

1. The invention and application of automobiles

Karl Benz—invented the internal combustion engine and automobile

"Father of the Car" Benz and his first car

2. The invention of the airplane

Please see P127 and P128 free reading cards.

Watch a video "The Birth of the First Airplane" and think: Who invented the world's first airplane?

1. Multiple choice questions:

1. In the 1870s, the country that was one step ahead in the development of electric power was ( )

A. The United States and the United Kingdom B. The United States and Germany

C. Britain and France D. Britain and Germany

2. Human beings bid farewell to the age of oil lamps and candles thanks to ( )

A. Siemens’ invention B. Edison’s invention

C. Carl Benz’s invention D. Wright brothers’ invention

3. The important invention that led to the successful trial production of cars and airplanes is ( )

A. Development of tram B. Invention of internal combustion engine

C. The invention of the wired telegraph D. The availability of electric generators

4. Which of the following activities in today’s social life has nothing to do with the creators and inventors in the second scientific and technological revolution ( )

A. Call to say New Year greetings B. Take the bus to work

C. Working with a computer D. Traveling by plane

Material 1: This is a technological revolution of unprecedented scale, which has created huge productivity. Marx and Engels once pointed out: "The total productive forces created by the bourgeoisie in its less than one hundred years of class rule are more numerous and greater than all the productive forces created in all previous eras."

Material 2: Driven by this revolution, the world capitalist economy is in a "golden age" of rapid development, and industrial production has made huge leaps. Between 1870 and 1900, the world's total industrial output more than tripled, and the transportation industry achieved unprecedented development...

(1) Which historical event does the “revolution” in Material 1 refer to?

(2) The "revolution" in Material 2 has profoundly changed human life. Please cite at least 2 examples of achievements that are still playing an important role today.

(3) What problem do the above two paragraphs of material illustrate?

Climb high and look far

If you were the leader of our country, what do you think would be the focus of our country’s future development? In what areas should efforts be made?

Science and technology must be valued and developed.

Increase independent innovation, develop education, and improve the scientific and cultural quality of workers, etc.

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"Humanity Enters the Electric Age" The World in the Era of Monopoly Capitalism PPT Courseware 8:

"Humanity Enters the Electric Age" The World in the Era of Monopoly Capitalism PPT Courseware 8 Think about it? What is the epoch-making significance of the invention of this power machine? In 1831, Faraday discovered the phenomenon of electromagnetic induction and found the key to opening the door to the treasure house of electrical energy. The second industrial...

"Humanity Enters the Electric Age" The World in the Era of Monopoly Capitalism PPT Courseware 7:

"Humanity Enters the Electrical Age" The World in the Era of Monopoly Capitalism PPT Courseware 7 1. The arrival of the electrical age The first industrial revolution The steam age The second industrial revolution The electrical age How was electricity invented? How did it enter the actual production field? ..

"Humanity Enters the Electric Age" The World in the Era of Monopoly Capitalism PPT Courseware 6:

"Humanity Enters the Electric Age" The World in the Era of Monopoly Capitalism PPT Courseware 6 Content Standards 1. List the historical facts of the widespread use of electricity and understand the characteristics of the second industrial revolution. 2. Know the invention activities of Benz and the Wright brothers, and understand the two transportation technologies of automobiles and airplanes..

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Update Time: 2024-10-03

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