"Humanity Enters the Electric Age" The Second Industrial Revolution PPT Courseware

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"Humanity Enters the Electric Age" The Second Industrial Revolution PPT Courseware

1. The arrival of the second industrial revolution

1. The time and conditions for the rise of the second industrial revolution

Time: Mid to late 19th century

condition:

objective:

(1) Optimization of the political environment—the establishment of the capitalist system in major European and American countries.

(2) The needs of economic development—the continuous expansion of the capitalist market.

(3) Promotion of scientific research - the rapid development of science and technology.

Subjective: Some scientific and technical workers devote themselves to research, dare to explore, and dare to innovate.

2. Symbols of the rise of the second industrial revolution

(1) Utilization of new energy sources such as electricity and petroleum

(2) Creation of new machines and products such as internal combustion engines, automobiles, and airplanes

(3) The invention of telegraph, telephone and other means of communication

Booth 1 Electromagnetic Theory

On September 3, 1821, the 30-year-old Faraday designed an experiment to turn magnetism with electricity; in 1822, Faraday hoped to convert magnetism into electricity; in 1831, after 10 years of unremitting efforts, the 40-year-old Faraday designed a This device obtains a constant current. The great ideal of converting magnetism into electricity was finally realized.

What impact has the discovery of electromagnetic induction had on human life?

It provided a scientific basis for mankind to utilize electrical energy, leading to the invention of generators and a series of electrical appliances, bringing mankind into the electrical age and further improving the quality of life.

Booth 2 Generators and electric motors

Siemens (1816-1892), German inventor, entrepreneur, founder of Siemens. Siemens is famous in the history of science for its diligent research and outstanding contributions in electrical science. During his lifetime, he received more awards and honors for his outstanding achievements in engineering technology, scientific research, administration, law, and business.

2. Results of the Second Industrial Revolution

The use of electricity and the invention of electrical appliances

Siemens 1866 generator

Gram 1870 electric motor

Edison 1879 light bulb, etc.

The development of electricity and the invention and application of various electrical appliances have brought mankind into the electrical age.

Telecommunications

Morse 1837 Telegraph

Marconi 1895 wireless telegraphy

Bell 1876 Telephone

It provides great convenience for rapid and long-distance exchange of information, strengthens connections around the world, and human communication has entered a new era.

Imagination world

Based on the content of this lesson, what qualities do you think a scientist should have?

① Determined to serve the society; ② Love scientific research; ③ Have rich knowledge; ④ Learn from the achievements of predecessors; ⑤ Concentrate on scientific research; ⑥ Good at observation and imagination; ⑦ Dare to innovate, etc.

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Update Time: 2024-10-20

This template belongs to History courseware Yuelu Edition Ninth Grade History Volume 1 industry PPT template

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