"The Future of the Universe" PPT download

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"The Future of the Universe" PPT download

Part 1: Introduction to the author

⊙Praise: "Legendary scientist in a wheelchair" and "The most outstanding physicist after Einstein" "Giant of gravitational physics science"

⊙Life: 1942, Oxford, "Oxford University" and "Cambridge University"

⊙ Disease: "Amyotrophic lateral sclerosis" and "Pneumonia (tracheal surgery)"

⊙Theory: "Black hole evaporation theory" and "Quantum cosmology"

⊙Goal: "First Thrust"

⊙Book: "A Brief History of Time"

⊙Position: Lucasian Chair of Mathematics, Senior Professor

⊙Spirit: The spirit of not bowing to misfortune

Summary Hawking

Scientists and physicists respect him not only for his contributions to theoretical physics, but also for his contributions despite being terminally ill and paralyzed.

From Hawking, who is "disabled in body but not disabled in spirit", we can feel his noble personality charm, tenacious qualities of overcoming himself, challenging limits, and pursuing science.

The future of the universe PPT, part 2: content exploration

Part One (1): Explain the theme of this article and emphasize that scientists are confident in predicting the future of the universe.

Part Two (2-5): It describes the ambiguity of ancient wizards’ prophecies. The skill lies in explanation, paving the way for the following chapters.

Paragraph 2: Wizards’ ambiguity and real skill lies in interpretation.

Paragraph 3: The prophet’s failure in predicting himself.

Paragraphs 4 and 5: Modern doomsday prophets do not set dates and make excuses for failure.

The theme of this lecture is predicting the future of the universe. Why does the opening chapter (1-5) list some embarrassing incidents where wizards have repeatedly failed to predict?

Through comparison, it is shown that the predictions of wizards lack scientific basis and are just ambiguous judgments. The real skill lies in explanation. This is very different from scientists' predictions.

Part 3 (6)

Not everything in science can be predicted, but on a large scale, it can predict the future of the universe.

Part 4 (7-10): Science on earth will be chaotic, and there are many aspects that are unpredictable.

Paragraph 7: Scientific laws do not affect the future evolution of the universe.

Paragraph 8: The universe will exhibit chaotic properties.

Paragraph 9: In unstable or chaotic systems, there is generally a time scale.

Paragraph 10: It is difficult to predict the brain and social life because of its chaotic behavior.

The future of the universe PPT, part three: overall perception

Then please use one sentence to briefly summarize the main content of this article?

This article is about the future of the universe. The author predicts two endings for the universe: either it will expand forever, or it will stop expanding and start shrinking, and eventually collapse to a point.

Hawking's main point in predicting the future of the universe?

The expansion and collapse of the universe are related to the average density of the universe. If the average density is less than a certain critical value, it will expand forever. If the average density were greater than a critical value, the universe would collapse and time itself would end. (16 paragraphs)

There should be some kind of invisible dark matter in spiral galaxies and galaxy clusters, and its gravitational attraction is enough to firmly hold fast-rotating galaxies and prevent these galaxies or galaxy clusters from flying apart. (paragraph 17)

If the universe continues to expand, in five billion years the sun will exhaust its nuclear fuel and become a white dwarf. In about 10 billion years, stars with solar mass will become white dwarfs or neutron stars, and stars with greater mass will become black holes. (paragraph 19-20)

The Future of the Universe PPT, Part 4: Homework

Discussion question?

This article is Hawking’s prediction of the future of the universe. So what do you think of the future of the universe?

Do you believe there is an end to the world?

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Update Time: 2024-07-24

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