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Authoritative PPT Summary
"Calling Three Quarks" PPT Courseware 2
1. Overall perception
⒈Read the text quickly. What does this article mainly explain?
The article mainly introduces what is the minimum structure of matter.
⒉ Regarding this issue, people in different periods have different understandings. What is introduced to us in the text? What is the focus of the article?
3. Please rank these highlighted particles. What are the latest achievements in human understanding of the structure of matter?
4. Is there an order in explaining them?
2. In-depth understanding
Use the pictures and texts to talk about your understanding of atoms, nuclei, hadrons, and quarks.
In your own words, describe what you know about atoms.
Introduction to atomic nuclei
The nucleus of an atom is simply called "nucleus". Located at the core of the atom, it is composed of two particles, protons and neutrons. The nucleus itself is very small. About 100,000 nuclei arranged in a straight line are equivalent to the diameter of one atom. The energy of the atomic nucleus is extremely high.
What does quark mean in the poem "Finnegan's Wake"? Why did the author choose such a name?
Answer: "Quark" is a transliteration, which means the sound of seabirds. There is a sentence in the long poem "Finnegan's Awakening": "Three calls to quarks to Old Man Mike. Because the quarks studied by scientists are particularly related to the "three", plus the word "three calls" is in the poem." Scientist Gale Mann named his illusion after the "quark" in it. In fact, "quarks" are the fundamental particles that make up matter.
3. Mental inspiration
1. Ask students to count how many years it took for the research and discovery of quarks? What inspiration and understanding did you gain from it?
2. What do you think are the characteristics of the process by which scientists discover quarks?
4. Thinking link
Can you name other people and things that have this valuable spirit?
Answer: Galileo dared to doubt Aristotle's "Law of Falling Motion" and established the correct "Law of Free Fall". Copernicus dared to doubt religious heresies and created a more scientific universe structure system—the heliocentric theory.
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"Calling Three Quarks" PPT courseware 3:
"Calling Three Quarks" PPT Courseware 3 Speed Reading Exercise 1. What is a quark? What does quark mean in the poem "Finnegan's Wake"? Why did the author choose such a name? Answer: Quark is a transliteration, which means the sound of seabirds. The long poem "Finnegan's Sleep"..
"Calling Three Quarks" PPT courseware:
"Calling the Three-tone Quark" PPT courseware. First reading of the text, the reading is wonderful: Requirements: Underline some scientific concepts mentioned in the article and mark the areas of doubt. Let’s talk about it: What does this article mainly explain? ... ... ... Read the text again and read the wonderful things. Quickly browse the lesson...