Outline - Picnic Point High School
... The Universe began with a singularity in space-time. After the initial explosion, the Universe started to expand, cool and condense, forming matter. As part of this ongoing process the Sun and the Solar System were formed over 4x109 years ago from a gas cloud which resulted from a supernova explosio ...
... The Universe began with a singularity in space-time. After the initial explosion, the Universe started to expand, cool and condense, forming matter. As part of this ongoing process the Sun and the Solar System were formed over 4x109 years ago from a gas cloud which resulted from a supernova explosio ...
26.5 The Expanding Universe
... time could have led to the present universe of stars and galaxies. It offers the best current scientific explanation of the expansion of the observable universe. Variations of the theory continue to be proposed and are being tested with new observations. ...
... time could have led to the present universe of stars and galaxies. It offers the best current scientific explanation of the expansion of the observable universe. Variations of the theory continue to be proposed and are being tested with new observations. ...
ASTR 1020 General Astronomy: Stars and Galaxies REVIEW
... spectra of two stars of different type Spectroscopic Binary Doppler shift shows orbital motion Eclipsing Binary light varies Half of all stars are in binaries…. Binary stars are formed at birth. Both components will have same age and composition. Can vary in mass Can be very distant (0.1pc) or touch ...
... spectra of two stars of different type Spectroscopic Binary Doppler shift shows orbital motion Eclipsing Binary light varies Half of all stars are in binaries…. Binary stars are formed at birth. Both components will have same age and composition. Can vary in mass Can be very distant (0.1pc) or touch ...
Dark Matter in the Universe:
... How long it appears to be brighter depends on how fast the MACHO is moving and how massive it is. ...
... How long it appears to be brighter depends on how fast the MACHO is moving and how massive it is. ...
attached test
... 3. Is the parallel postulate in Euclidean geometry also true in Spherical geometry? Why or why not? 4. Name one unique figure in spherical geometry that is not found in Euclidean geometry. Accurately describe the figure. 5. Name at least two real life applications of spherical geometry. 6. Describe ...
... 3. Is the parallel postulate in Euclidean geometry also true in Spherical geometry? Why or why not? 4. Name one unique figure in spherical geometry that is not found in Euclidean geometry. Accurately describe the figure. 5. Name at least two real life applications of spherical geometry. 6. Describe ...
Word
... The Big Bang theory originated from the discovery by the American astronomer Edwin Hubble that the distant galaxies are receding from us at speeds in proportion to their distances. Hubble's law states that a galaxy at distance d is receding at speed v = H d, where H is a constant of proportionality ...
... The Big Bang theory originated from the discovery by the American astronomer Edwin Hubble that the distant galaxies are receding from us at speeds in proportion to their distances. Hubble's law states that a galaxy at distance d is receding at speed v = H d, where H is a constant of proportionality ...
Cosmological Structure Formation
... bath, leading to Nint interactions in time t, is much larger than the expansion rate of the Universe, the Hubble parameter H(t): ...
... bath, leading to Nint interactions in time t, is much larger than the expansion rate of the Universe, the Hubble parameter H(t): ...
class 2, S11
... • How did we come to be? —The matter in our bodies came from the Big Bang, which produced hydrogen and helium. —All other elements were constructed from H and He in stars and then recycled into new star systems, including our solar system. • How can we know what the universe was like in the past? • ...
... • How did we come to be? —The matter in our bodies came from the Big Bang, which produced hydrogen and helium. —All other elements were constructed from H and He in stars and then recycled into new star systems, including our solar system. • How can we know what the universe was like in the past? • ...
AAM43K
... Geometry is one of the most fundamental and important mathematics topics. The modern Euclidean geometry was built as an axiomatic system. But most of the people do not have chance to go through the whole geometry axiomatic system, which is important for a school mathematics teacher. This course will ...
... Geometry is one of the most fundamental and important mathematics topics. The modern Euclidean geometry was built as an axiomatic system. But most of the people do not have chance to go through the whole geometry axiomatic system, which is important for a school mathematics teacher. This course will ...
Space - Logan Petlak
... • Study particular technologies that help us explore space (telescopes in orbit or on our planet) • Calculate estimated time to travel to several locations in the universe (make a universe brochure) • Do a short essay 1.5 pages double-spaced on… funding of space projects, value of space programs, or ...
... • Study particular technologies that help us explore space (telescopes in orbit or on our planet) • Calculate estimated time to travel to several locations in the universe (make a universe brochure) • Do a short essay 1.5 pages double-spaced on… funding of space projects, value of space programs, or ...
6 The Uncreated Universe - Mukto-mona
... of the rest, as best as we can tell, has little more structure than the cosmic microwave background, which we recall is smooth to one part in a hundred thousand. Let us look at the physics questions implied by common intuition. If we hypothesize that the universe is an isolated or "closed" system, m ...
... of the rest, as best as we can tell, has little more structure than the cosmic microwave background, which we recall is smooth to one part in a hundred thousand. Let us look at the physics questions implied by common intuition. If we hypothesize that the universe is an isolated or "closed" system, m ...
Welcome to Astro 10! - UC Berkeley Astronomy w
... Seeing into the past • The nearest star, Proxima Centauri, is 4.2 ly away! • Other stars are even larger distances, so we see them farther back in the past. • The nearest galaxy, Andromeda, is 2.4 million ly from us. • The nearest Galaxies, stars, and other objects like Quasars can be seen up to 13 ...
... Seeing into the past • The nearest star, Proxima Centauri, is 4.2 ly away! • Other stars are even larger distances, so we see them farther back in the past. • The nearest galaxy, Andromeda, is 2.4 million ly from us. • The nearest Galaxies, stars, and other objects like Quasars can be seen up to 13 ...
Nucleosynthesis in the Early Universe.
... interpretation of the overall curvature of the spacetime continuum. Later we will use it to consider the question of whether the Universe is “closed or open”. •Overall there are three possibilities which we can see as being similar to the question of “Escape velocity” for an object leaving a plane ...
... interpretation of the overall curvature of the spacetime continuum. Later we will use it to consider the question of whether the Universe is “closed or open”. •Overall there are three possibilities which we can see as being similar to the question of “Escape velocity” for an object leaving a plane ...
File
... About 13.7 billion years ago, a violent explosion occurred sending material in all directions into space. ...
... About 13.7 billion years ago, a violent explosion occurred sending material in all directions into space. ...
Wild Surmise Study
... the air cools. This permits the upward air current to continue. In an analogous fashion, the condensation of our present laws of nature out of a more general state released lots of energy. This energy caused the universe to expand at a much greater rate than it currently does. The rapid expansion of ...
... the air cools. This permits the upward air current to continue. In an analogous fashion, the condensation of our present laws of nature out of a more general state released lots of energy. This energy caused the universe to expand at a much greater rate than it currently does. The rapid expansion of ...
Time From the Perspective of a Particle Physicist
... Cosmology. Hubble law Universe is expanding, gives universe’s age, depends on Hubble “constant” changes with time. Closed universe has gravity slowing the expansion so it starts to contract. Open universe expands forever. Early universe was very hot and when matter was created. First electrons, pr ...
... Cosmology. Hubble law Universe is expanding, gives universe’s age, depends on Hubble “constant” changes with time. Closed universe has gravity slowing the expansion so it starts to contract. Open universe expands forever. Early universe was very hot and when matter was created. First electrons, pr ...
Shape of the universe
The shape of the universe is the local and global geometry of the Universe, in terms of both curvature and topology (though, strictly speaking, the concept goes beyond both). The shape of the universe is related to general relativity which describes how spacetime is curved and bent by mass and energy.There is a distinction between the observable universe and the global universe. The observable universe consists of the part of the universe that can, in principle, be observed due to the finite speed of light and the age of the universe. The observable universe is understood as a sphere around the Earth extending 93 billion light years (8.8 *1026 meters) and would be similar at any observing point (assuming the universe is indeed isotropic, as it appears to be from our vantage point).According to the book Our Mathematical Universe, the shape of the global universe can be explained with three categories: Finite or infinite Flat (no curvature), open (negative curvature) or closed (positive curvature) Connectivity, how the universe is put together, i.e., simply connected space or multiply connected.There are certain logical connections among these properties. For example, a universe with positive curvature is necessarily finite. Although it is usually assumed in the literature that a flat or negatively curved universe is infinite, this need not be the case if the topology is not the trivial one.The exact shape is still a matter of debate in physical cosmology, but experimental data from various, independent sources (WMAP, BOOMERanG and Planck for example) confirm that the observable universe is flat with only a 0.4% margin of error. Theorists have been trying to construct a formal mathematical model of the shape of the universe. In formal terms, this is a 3-manifold model corresponding to the spatial section (in comoving coordinates) of the 4-dimensional space-time of the universe. The model most theorists currently use is the so-called Friedmann–Lemaître–Robertson–Walker (FLRW) model. Arguments have been put forward that the observational data best fit with the conclusion that the shape of the global universe is infinite and flat, but the data are also consistent with other possible shapes, such as the so-called Poincaré dodecahedral space and the Picard horn.