The "raisin pudding model" is a simplified conceptual model used to explain the large-scale structure of the universe and the expansion of the universe. It is often used in cosmology to help illustrate the fundamental ideas of the Big Bang theory.
In this model, the universe is compared to a "pudding" or a cake filled with raisins. Imagine the raisins represent galaxies or clusters of galaxies, and the pudding represents the space between them. The key concept here is that as the pudding (space) expands, all the raisins (galaxies) within it move away from each other.
The raisin pudding model helps to illustrate several important points:
1. Cosmic Expansion: Just as the pudding expands and causes the raisins to move away from each other, the universe is expanding, leading to galaxies moving away from each other.
2. No Center: In the raisin pudding model, there is no specific center from which the raisins are moving away. Similarly, in the expanding universe, there is no central point of expansion; it's the space itself that is expanding everywhere.
3. Observational Evidence: The model aligns with the observed redshift of light from distant galaxies, which indicates that they are moving away from us. This redshift is a key piece of evidence supporting the Big Bang theory.
While the raisin pudding model is a simplification, it serves as a helpful analogy for understanding the basic idea of cosmic expansion and the expanding universe in cosmology. It's important to note that the actual mathematics and physics behind the expansion of the universe are more complex, involving Einstein's theory of general relativity and observational data from astronomy and astrophysics.
Answer: an atom had a spherical structure with an evenly scattered positive charge.
Explanation: Thomson suggested in 1898 that an atom had a spherical structure with an evenly scattered positive charge. The electrons are immersed within it in such a way as to give the most stable electrostatic configuration. This model is known by various names, including plum pudding, raisin pudding, and watermelon.
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Answer:
The "raisin pudding model" is a simplified conceptual model used to explain the large-scale structure of the universe and the expansion of the universe. It is often used in cosmology to help illustrate the fundamental ideas of the Big Bang theory.
In this model, the universe is compared to a "pudding" or a cake filled with raisins. Imagine the raisins represent galaxies or clusters of galaxies, and the pudding represents the space between them. The key concept here is that as the pudding (space) expands, all the raisins (galaxies) within it move away from each other.
The raisin pudding model helps to illustrate several important points:
1. Cosmic Expansion: Just as the pudding expands and causes the raisins to move away from each other, the universe is expanding, leading to galaxies moving away from each other.
2. No Center: In the raisin pudding model, there is no specific center from which the raisins are moving away. Similarly, in the expanding universe, there is no central point of expansion; it's the space itself that is expanding everywhere.
3. Observational Evidence: The model aligns with the observed redshift of light from distant galaxies, which indicates that they are moving away from us. This redshift is a key piece of evidence supporting the Big Bang theory.
While the raisin pudding model is a simplification, it serves as a helpful analogy for understanding the basic idea of cosmic expansion and the expanding universe in cosmology. It's important to note that the actual mathematics and physics behind the expansion of the universe are more complex, involving Einstein's theory of general relativity and observational data from astronomy and astrophysics.
Verified answer
Answer: an atom had a spherical structure with an evenly scattered positive charge.
Explanation: Thomson suggested in 1898 that an atom had a spherical structure with an evenly scattered positive charge. The electrons are immersed within it in such a way as to give the most stable electrostatic configuration. This model is known by various names, including plum pudding, raisin pudding, and watermelon.
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