"Human Understanding of the Universe" PPT

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"Human Understanding of the Universe" PPT

Part One: Geocentric Theory and Heliocentric Theory

Do you know how the universe was born? Will the universe finally come to an end? Since ancient times, what has been mankind’s understanding of the universe?

From geocentric theory to heliocentric theory

During the Warring States Period, Gaitian said.

Pythagoras of ancient Greece believed that celestial bodies were spherical

It is consistent with the Christian view and is strongly supported by the Holy See. It is a written tool to restrict people's thoughts and also hinders the development of astronomy.

In the 2nd century AD, the Greek scientist Ptolemy proposed the "geocentric theory"

PPT on human understanding of the universe, part 2: modern cosmology theory

Research by American astronomer Hubble:

Hubble discovered that the greater the distance between galaxies, the greater the corresponding movement speed.

Imagine what would happen to these galaxies if time went back? What will it look like in the end?

Eventually it will shrink into a ball or even a point.

big bang theory

About 13.7 billion years ago, the universe was a "primordial fireball." At that time, the universe was extremely small, extremely hot, and extremely dense. The universe was born in the explosion of this large fireball, and expanded rapidly, continuing to this day.

PPT on human understanding of the universe, part 3: Class summary

1. Human understanding of the universe:

Representatives of geocentrism and heliocentrism

2. Modern cosmology:

The theory of the Big Bang (evidence: support from the movement of galaxies)

Keywords: Free download of science PPT courseware for the second volume of the ninth grade of Zhejiang Education Edition, PPT download of human understanding of the universe, .PPT format;

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"Human Understanding of the Universe" PPT courseware:

"Human Understanding of the Universe" PPT courseware Part 1: Classroom exercises 1. Ancient humans' understanding of the universe took a long time, and each nation had its own understanding and imagination of the universe. 2. From geocentric theory to heliocentric theory (1) In the 2nd century AD, Greek science...

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Update Time: 2024-10-27

This template belongs to science courseware Zhejiang Education Edition Ninth Grade Science Volume 2 industry PPT template

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