Article - The 10 weirdest physics facts
... much pressure, and therefore just as high a temperature. So it would make very little difference to the heat whether you made the Sun out of hydrogen, or bananas, or patio furniture. All the matter that makes up the human race could fit in a sugar cube Atoms are 99.9999999999999 per cent empty space ...
... much pressure, and therefore just as high a temperature. So it would make very little difference to the heat whether you made the Sun out of hydrogen, or bananas, or patio furniture. All the matter that makes up the human race could fit in a sugar cube Atoms are 99.9999999999999 per cent empty space ...
Unit 6--Astronomy
... 42.Which of the following indicates that the universe is expanding? a. red shift of distant galaxies b. red shift of the galaxies in the Local Group c. blue shift of distant galaxies d. blue shift of the Milky Way 43.Based on the observed red shifts in the spectral lines of distant galaxies, astrono ...
... 42.Which of the following indicates that the universe is expanding? a. red shift of distant galaxies b. red shift of the galaxies in the Local Group c. blue shift of distant galaxies d. blue shift of the Milky Way 43.Based on the observed red shifts in the spectral lines of distant galaxies, astrono ...
Our Universe
... •Is there a black hole in the center of our Milky Way- YES! •The fundamental descriptions of black holes are based on equations in the theory of general relativity developed by the German-born physicist Albert Einstein. The theory was published in 1916. •The surface of a black hole is known as the e ...
... •Is there a black hole in the center of our Milky Way- YES! •The fundamental descriptions of black holes are based on equations in the theory of general relativity developed by the German-born physicist Albert Einstein. The theory was published in 1916. •The surface of a black hole is known as the e ...
Big bang, red shift and doppler effect
... The fact that light from a distant galaxy seems to move towards the red end of galaxies are shrinking the spectrum gives scientists evidence that ...
... The fact that light from a distant galaxy seems to move towards the red end of galaxies are shrinking the spectrum gives scientists evidence that ...
Black Hole
... After all the Hydrogen in the star was converted to Helium, for about a Million years other elements such as Carbon And others are cooked within the Star. The Supernova then throws them out in the Faraway Sky. Thus all the elements of which our Human Bodies are made were Cooked in faraway stars once ...
... After all the Hydrogen in the star was converted to Helium, for about a Million years other elements such as Carbon And others are cooked within the Star. The Supernova then throws them out in the Faraway Sky. Thus all the elements of which our Human Bodies are made were Cooked in faraway stars once ...
Other Galaxies, their Distances, and the Expansion of the Universe
... Galaxies fill the Universe, and are visible at great distances. Each contains hundreds of millions of stars. They can be used to trace and derive properties of the Universe itself, such as whether it is a changing or unchanging structure, the speed of change, etc. ...
... Galaxies fill the Universe, and are visible at great distances. Each contains hundreds of millions of stars. They can be used to trace and derive properties of the Universe itself, such as whether it is a changing or unchanging structure, the speed of change, etc. ...
PDF version - Caltech Astronomy
... page 53.) It now appears that about 70% of the mass– energy of the Universe is accounted for by some unexplained “dark energy” that works against gravity on large scales, very much like L. An alternative view of this mysterious dark energy that calls it “quintessence,” presumes a temporal variabilit ...
... page 53.) It now appears that about 70% of the mass– energy of the Universe is accounted for by some unexplained “dark energy” that works against gravity on large scales, very much like L. An alternative view of this mysterious dark energy that calls it “quintessence,” presumes a temporal variabilit ...
Click here to 2016 The Universe Diagnostic Test
... Explain how the real motion of the Sun, the Moon and planets relate to observations Use models to explain the structure of solar system Evaluate the benefits and drawbacks of space exploration Know that gravity controls the motion of all objects in space Know that gravity is not restricted to Earth ...
... Explain how the real motion of the Sun, the Moon and planets relate to observations Use models to explain the structure of solar system Evaluate the benefits and drawbacks of space exploration Know that gravity controls the motion of all objects in space Know that gravity is not restricted to Earth ...
Facilitator`s Guide PDF
... the universe is not constant or slowing, but instead accelerating. Dark energy is the proposed agent of this acceleration—a repulsive type of energy that could be thought of as an “anti-gravity force” unlike anything yet known to us. Dark energy accounts for 73% of the mass-energy in the universe. A ...
... the universe is not constant or slowing, but instead accelerating. Dark energy is the proposed agent of this acceleration—a repulsive type of energy that could be thought of as an “anti-gravity force” unlike anything yet known to us. Dark energy accounts for 73% of the mass-energy in the universe. A ...
Stars part 3
... Lethargic obtuseness is insubordinate and is discouraged by PBIS, as it may result in little or no monetary gain after secondary education or a fine of $250,000. ...
... Lethargic obtuseness is insubordinate and is discouraged by PBIS, as it may result in little or no monetary gain after secondary education or a fine of $250,000. ...
Summer 2013, Vol. 2, No. 2 - CAAUL
... The session on cosmology was mostly devoted to theoretical aspects. In this sense it was not fully representative of current research in Portugal, where the field of observational cosmology has been growing. Indeed, there are Portuguese researchers involved in the recent results of the Planck missio ...
... The session on cosmology was mostly devoted to theoretical aspects. In this sense it was not fully representative of current research in Portugal, where the field of observational cosmology has been growing. Indeed, there are Portuguese researchers involved in the recent results of the Planck missio ...
IS AN ALTERNATE COSMOLOGY BECOMING NECESSARY?
... of mathematical basis when in fact very little is actually known yet about how it all functions, an interaction of many facets of physics, much of it known. Due to the notion of a fourteen billion year age, there is the notion that small galaxies could rapidly build larger galaxies via mergers. For ...
... of mathematical basis when in fact very little is actually known yet about how it all functions, an interaction of many facets of physics, much of it known. Due to the notion of a fourteen billion year age, there is the notion that small galaxies could rapidly build larger galaxies via mergers. For ...
Exploring the Universe
... a. Red shift, and cosmic background radiation b. Cosmic background radiation: steady, but very dim signals in the form of microwaves that are emitted all over the sky i. Scientists believe that these microwaves are the remains of the radiation produced during the Big Bang ...
... a. Red shift, and cosmic background radiation b. Cosmic background radiation: steady, but very dim signals in the form of microwaves that are emitted all over the sky i. Scientists believe that these microwaves are the remains of the radiation produced during the Big Bang ...
The Cosmic Microwave Background
... density Ωbh2 make the first acoustic peak much larger than the second. The more baryons the more the second peak is relatively suppressed. Baryons constitute about 5% of the critical density today, in agreement with the number derived from studies of light element synthesis in the infant universe. A ...
... density Ωbh2 make the first acoustic peak much larger than the second. The more baryons the more the second peak is relatively suppressed. Baryons constitute about 5% of the critical density today, in agreement with the number derived from studies of light element synthesis in the infant universe. A ...
Galaxies and the Universe - Grandview Independent School
... including the eight major planets, their satellites, and all the smaller pieces such as asteroids and comets • formed around 4.6 billion years ago What is ...
... including the eight major planets, their satellites, and all the smaller pieces such as asteroids and comets • formed around 4.6 billion years ago What is ...
ASTRONOMY After Unit 2 you should be able to
... Galaxies take on a variety of shapes The Milky Way is known as a spiral galaxy, with our solar system located in one of the outer arms There are billions of galaxies that make up the visible universe ...
... Galaxies take on a variety of shapes The Milky Way is known as a spiral galaxy, with our solar system located in one of the outer arms There are billions of galaxies that make up the visible universe ...
Study Guide: Chapters 32-‐34 FROSH CHAPTER 32 1. What is
... 49. The Milky Way galaxy contains interstellar matter that may form new _______________. ...
... 49. The Milky Way galaxy contains interstellar matter that may form new _______________. ...
Standard Set 2 - Atascadero High School
... universe’s visible matter; that is, matter that emits or reflects light or some other electromagnetic radiation that is detectable on Earth. The presence of otherwise invisible matter can be inferred from the effect of its gravity on visible matter, and the mass of the invisible matter in the univer ...
... universe’s visible matter; that is, matter that emits or reflects light or some other electromagnetic radiation that is detectable on Earth. The presence of otherwise invisible matter can be inferred from the effect of its gravity on visible matter, and the mass of the invisible matter in the univer ...
Galaxy clusters - University of Iowa Astrophysics
... source, we can figure out the total mass in the lens. This provides an independent confirmation of dark matter. • A lense can act as a huge telescope. The deepest images of the most distant galaxies are obtained with clusters acting as gravitational lenses. ...
... source, we can figure out the total mass in the lens. This provides an independent confirmation of dark matter. • A lense can act as a huge telescope. The deepest images of the most distant galaxies are obtained with clusters acting as gravitational lenses. ...
Tragedy vs. Hope: What Future in an Open Universe?
... forming in nucleosynthesis, but not so for oxygen, the succeeding element that would have depleted carbon otherwise. The evolution time to intelligent life is about half of the life time of a solar-like star, but not orders of magnitude longer. There are many more of such fine tunings of the univers ...
... forming in nucleosynthesis, but not so for oxygen, the succeeding element that would have depleted carbon otherwise. The evolution time to intelligent life is about half of the life time of a solar-like star, but not orders of magnitude longer. There are many more of such fine tunings of the univers ...
SOLUTIONS ASTROPHYSICS – OPTION D 2015-17
... (a) The temperature would keep falling to absolute zero. (b) The temperature would increase as the collapse begins. ...
... (a) The temperature would keep falling to absolute zero. (b) The temperature would increase as the collapse begins. ...
Answers - Physics and Astronomy
... QUESTION 1: Some recent measurements of the expansion rate of the universe suggest a problem with our old ideas about how the universe should be expanding. What is the problem? a. The measurements suggest that the universe may be shrinking rather than expanding. b. The measurements indicate that the ...
... QUESTION 1: Some recent measurements of the expansion rate of the universe suggest a problem with our old ideas about how the universe should be expanding. What is the problem? a. The measurements suggest that the universe may be shrinking rather than expanding. b. The measurements indicate that the ...
Core Theme 3: The Solar System
... realize that our present theories must be continually tested and modified because new theories frequently arise as we learn more through our observations. That is why most physicists and astronomers today are so inclined to accept the Big Bang Theory as the most plausible explanation for the origin ...
... realize that our present theories must be continually tested and modified because new theories frequently arise as we learn more through our observations. That is why most physicists and astronomers today are so inclined to accept the Big Bang Theory as the most plausible explanation for the origin ...
Physical cosmology
Physical cosmology is the study of the largest-scale structures and dynamics of the Universe and is concerned with fundamental questions about its origin, structure, evolution, and ultimate fate. For most of human history, it was a branch of metaphysics and religion. Cosmology as a science originated with the Copernican principle, which implies that celestial bodies obey identical physical laws to those on Earth, and Newtonian mechanics, which first allowed us to understand those physical laws.Physical cosmology, as it is now understood, began with the development in 1915 of Albert Einstein's general theory of relativity, followed by major observational discoveries in the 1920s: first, Edwin Hubble discovered that the universe contains a huge number of external galaxies beyond our own Milky Way; then, work by Vesto Slipher and others showed that the universe is expanding. These advances made it possible to speculate about the origin of the universe, and allowed the establishment of the Big Bang Theory, by Georges Lemaitre, as the leading cosmological model. A few researchers still advocate a handful of alternative cosmologies; however, most cosmologists agree that the Big Bang theory explains the observations better.Dramatic advances in observational cosmology since the 1990s, including the cosmic microwave background, distant supernovae and galaxy redshift surveys, have led to the development of a standard model of cosmology. This model requires the universe to contain large amounts of dark matter and dark energy whose nature is currently not well understood, but the model gives detailed predictions that are in excellent agreement with many diverse observations.Cosmology draws heavily on the work of many disparate areas of research in theoretical and applied physics. Areas relevant to cosmology include particle physics experiments and theory, theoretical and observational astrophysics, general relativity, quantum mechanics, and plasma physics.