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According to Hubbles law galaxies are retreating at a speed that is proportional to their?
I'm not convinced that your proposition is correct. I realize that cosmologists use a lot of simplification in their descriptions, for friendly reasons, but I always prefer to keep things fairly straight. It is my reading of Hubble that he postulated that remote galaxies were receding -- at the time they emitted the light which we are now receiving -- from us at a speed which was proportional to the distance from where they were then to where we are now. How one interprets the concept of distance, in view of the separately postulated "expansion of space" and time-dependence of the "scaling factor" is obviously now a compounding, related issue, which lay outside Hubble's purview. Hubble's law does not specify, based upon the observed redshift (whether non-Doppler or not) what is (i.e. is now) the distance between us and the galaxy. It is considered simplest to assume that the velocity of separation is and continues radially uniform, and therefore has increased during the time it took the light to reach us. If you need to know the current (our observing time) location of the remote galaxy and the velocity of its separation from us now, you will need to apply further calculations to the Hubble data.
Was it difficult for Edwin hubbles ideas to be accepted?
All new ideas which upset the "current order" take a while to be accepted. The first expression of the heliocentric model of the solar system was by Aristarchus of Samos, 2400 years ago; it wasn't until Copernicus did his work that it became generally accepted. Galileo and Newton in physics overturned Aristotle. The theory of plate tectonics and continental drift was generally laughed at when I was in school. (But now you learn it IN school.) Sir Fred Hoyle coined the term "big bang" in mockery, compared to the accepted "steady state" theory. Luis Alvarez was derided as an insane madman for coming up with the impossible notion that a city-sized rock falling from space might have killed off the dinosaurs, and that was only 50 years ago! Now we (think we) know better. Every new idea goes through a weeding out process. Somebody makes a highly improbable assertion. Other scientists examine the idea, and try to come up with evidence for or against it. Somebody figures out a mechanism by which this might have happened. (Many "new ideas" disintegrate at these stages, and go no further. Not every "new idea" is true, and this weeding-out process is part of the "scientific method".)
According to hubbles law galaxies are retreating from earth at speed that is proportional to their?
distance
The implication of hubbles law is that the universe is?
expanding, with galaxies moving away from each other. This expansion suggests that the universe was once much smaller and denser, and has been expanding ever since the Big Bang.
What did Edwin Hubbles discovery of red shift demonstrate?
Edwin Hubble's discovery of red shift demonstrated that galaxies are moving away from each other, providing evidence for the expanding universe. This discovery supported the Big Bang theory and fundamentally changed our understanding of the universe's structure and evolution.
What do th spectra of distant galaxies collected today say about hubbles original findings?
The spectra of distant galaxies collected today support Hubble's original findings by showing that galaxies are moving away from us, indicating an expanding universe. The redshift in the spectra is evidence of this cosmic expansion, consistent with Hubble's discovery of the relationship between distance and redshift.
What was hubbles theory about the solar system?
Hubble's theory, primarily associated with Edwin Hubble, is often linked to his observations of the expanding universe rather than a specific theory about the solar system itself. He demonstrated that distant galaxies were moving away from us, suggesting that the universe is expanding. This led to the formulation of Hubble's Law, which relates the distance of galaxies to their recessional velocity. While this theory revolutionized our understanding of the universe, it does not specifically address the solar system's structure or dynamics.
What is Edwin Hubbles key contributes and evidence on galaxies?
Edwin Hubble is renowned for demonstrating that galaxies exist beyond our Milky Way, fundamentally reshaping our understanding of the universe. His key contributions include the classification of galaxies and the formulation of Hubble's Law, which shows that the universe is expanding, with galaxies moving away from us at speeds proportional to their distances. This discovery provided strong evidence for the Big Bang theory and established the field of extragalactic astronomy. Hubble's observations, particularly with the Hubble Space Telescope, have been pivotal in advancing our knowledge of the structure and evolution of the cosmos.
What does Hubbles law tell us about the beginning of the universe?
It shows that in the past, galaxies were closer together; also, it suggests - as is commonly believed nowadays - that some time in the past, all matter in the Universe was very close together, in a very hot and dense state.
How old is the universe in 2011?
By using a therom call hubbles law and hubbles constant this is the calculation: 1/Ho=d/v=t t= 3.09x10 22/71000x31566926 t=13.738 billion years old
What was Edwin hubbles main profession?
Edwin Hubble was primarily an astronomer, renowned for his contributions to the field of cosmology. He is best known for discovering the expansion of the universe and formulating Hubble's Law, which describes the relationship between the distance of galaxies and their redshift. Before his astronomical career, Hubble was also a successful athlete and briefly practiced law. His groundbreaking work fundamentally changed our understanding of the universe.
Why is Edwin hubbles invention important?
=Edwin Hubble's invention is important because the telescope its self showed over 50,000 space galaxies and planets. also it was made of cats=
What determines galaxy motion and distance?
Galaxy motion and distance are determined by the expansion of the universe, influenced by the distribution of matter and dark energy. The collective gravitational forces between galaxies also play a role in their motion and organization within the universe. Measurements of redshift and luminosity distance are used to determine the distances to galaxies in the cosmos.
Why do observations made of distant galaxies indicate that dark energy exists?
The observations made from distant galaxies suggest that Dark energy exists. This is because of the fact that the galaxies are moving away from each other. This is given by Hubbles law.Instead of being attracted by the force of gravitation,galaxies tends to move away suggesting the presence of a gravity opposing force called dark energy.
