"Magic Speaker" PPT courseware 3

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"Magic Speaker" PPT courseware 3

In the Song Dynasty more than a thousand years ago, Shen Kuo recorded in his "Mengxi Bi Tan"

A story about "a bosom friend": Song Dynasty composer Sang Jingshu created

"Poppy exercise" makes the branches and leaves of a poppy plant in the south of the Yangtze River dance. This is probably the earliest plant acoustics experiment.

Shen Kuo (1031-1095 AD), courtesy name Cunzhong, was born in Qiantang County, Hangzhou (now Hangzhou, Zhejiang) in the Northern Song Dynasty, and is of Han nationality. Scientist and politician in the Northern Song Dynasty. In the fifth year of Xining (AD 1072), he was promoted to Si Tianjian, and the following year he went to Zhejiang and Zhejiang to inspect water conservancy and police services. In the eighth year of Xining (AD 1075), he went to Liao as an envoy to refute Liao's territorial claims. In the fifth year of Yuanfeng (1082), the Song army was defeated by Xixia in the battle of Yongle City and was demoted. In his later years, he wrote the masterpiece "Mengxi Bi Tan" in Mengxi Garden, Zhenjiang based on his life experiences.

"Mengxi Bi Tan" records in detail the outstanding contributions of working people in science and technology and his own research results, reflecting the brilliant achievements of natural science in ancient my country, especially in the Northern Song Dynasty. The book has a total of 609 items (there are slight differences in different editions), covering astronomy, calendar, meteorology, geology, geography, physics, chemistry, biology, agriculture, water conservancy, architecture, medicine, history, literature, art, personnel, and military , law and many other fields.

After reading the text, do you know what is so magical about the "magic speaker"?

Plants generally have the ability to make spontaneous sounds and receive external sound stimulation. Based on this principle, scientists have created a magical speaker - a plant audio generator. It is about the same size as the speakers we have at home. It has speakers on all sides and can be placed in the ground to emit sound waves around. These sound waves sound like bagpipes of different lengths and heights. They can expand the stomata on the leaves and enhance the photosynthesis of plants, thereby stimulating rapid growth of plants. If you "listen to music" to the plants regularly, the plants will thrive along with the music.

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"Magic Speaker" PPT courseware 2:

"Magic Speaker" PPT courseware 2 Teaching objectives: 1. Understand what ecological agriculture is and its magic. 2. Let students feel the role of science and technology in agricultural development. 3. Learn and master the role of examples and other explanation methods in introduction. Thinking: 1. God...

"Magic Speaker" PPT courseware:

"Magic Speaker" PPT courseware Let's talk: What do you know about immortals? Read the text silently and draw the unknown words: stem (gǎn), oval (tuǒ), round storage (zh), fermentation (jio), rouge (yān), fat roasting (zh) roasting... Read again class..

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Update Time: 2024-10-20

This template belongs to Chinese courseware Western Normal University Edition Sixth Grade Chinese Volume 1 industry PPT template

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