Concept explainers
Whether an infinite, static universe uniformly filled with stars, when viewed from the Moon will appear bright or dark.
Answer to Problem 1CC
Solution:
An infinite, static universe uniformly filled with stars, when viewed from the Moon, i.e. facing away from the Sun will appear bright.
Explanation of Solution
Introduction:
Newtonian space is assumed to be static and infinite, which is filled with stars uniformly.
Explanation:
According to the Newtonian model, if the universe is infinite with stars filled in it, then even the night sky should appear bright.
So, when the space is viewed facing away from the Sun, it should be bright. The distant stars would appear dimmer, but the sky will be bright due to the great number of stars in any given patch of sky.
But in reality this is not the case and it appears dark. This is the Olbers paradox.
Conclusion:
The sky must appear bright, when assumed that the universe is infinite and static, uniformly filled with stars.
Want to see more full solutions like this?
Chapter 25 Solutions
Universe
- In Figure, why can a real worldline not have a slope less than one?arrow_forwardEdwin Hubble established the existence of separate, distant galaxies when he found __________ stars in the __________ Nebula and used them to measure its distance. He did this work with the world’s largest telescope (at the time) at the _____________. Hubble classified galaxies on the basis of their shapes, into spirals, ____________, and irregulars. Later, working with his assistant, ___________, he showed by using __________, that most of the galaxies were moving away from us, and that the further away a galaxy was, the ___________ it was moving away.arrow_forwardDo you happen to have a version of the solution to this problem where you can view the answer...it just cuts off the solution?arrow_forward
- Calculate, for the judge, how fast you were going in miles per hour when you ran the red light because it appeared Doppler-shifted green to you. Take red light to have a wavelength of 650 nm and green to have a wavelength of 550 nm.arrow_forwardAstronomers are always making comparisons between measurements in astronomy and something that might be more familiar. For example, the Hipparcos web pages tell us that the measurement accuracy of 0.001 arcsec is equivalent to the angle made by a golf ball viewed from across the Atlantic Ocean, or to the angle made by the height of a person on the Moon as viewed from Earth, or to the length of growth of a human hair in 10 sec as seen from 10 meters away. Use the ideas in Example 19.2 to verify one of the first two comparisons.arrow_forwardWhat is special about the ratio of the distance traveled by a flash of light and the time the light takes to travel this distance?arrow_forward
- What do you think of the statement: The universe has no center and no edge (or boundary)?arrow_forwardJust tell me I cavity please??arrow_forwardThe farthest objects in our Universe discovered by modern astronomers are so distant that light emitted by them takes billions of years to reach the Earth. These objects (known as quasars) have many puzzling features, which have not yet been satisfactorily explained. What is the distance in km of a quasar from which light takes 3.0 billion years to reach us ?arrow_forward
- Answer all the 5 questions with complete solutions please thank you so much, please if you’ll gonna write it please make sure it is understandable,tysm!arrow_forwardPlease help me with answering this, can you please draw a representation as wellarrow_forwardI am pretty sure that this can be solved by adding 57 to mg cos(theta) but when I enter -59.196 into the problem it says that it is incorrect.arrow_forward
- Horizons: Exploring the Universe (MindTap Course ...PhysicsISBN:9781305960961Author:Michael A. Seeds, Dana BackmanPublisher:Cengage LearningAstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStaxPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
- Modern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage LearningFoundations of Astronomy (MindTap Course List)PhysicsISBN:9781337399920Author:Michael A. Seeds, Dana BackmanPublisher:Cengage LearningStars and Galaxies (MindTap Course List)PhysicsISBN:9781337399944Author:Michael A. SeedsPublisher:Cengage Learning