1 Introduction for non-astronomers 1.1 Our expanding universe
... The universe began about 13 thousand million years ago, in a hot Big Bang. During a brief period known as “inflation”, which lasted only for a tiny fraction of a second, the universe expanded rapidly. Immediately after inflation, the rate of expansion dropped dramatically; but the universe continued ...
... The universe began about 13 thousand million years ago, in a hot Big Bang. During a brief period known as “inflation”, which lasted only for a tiny fraction of a second, the universe expanded rapidly. Immediately after inflation, the rate of expansion dropped dramatically; but the universe continued ...
CHAPTER-17 Light and Image Formation
... 6. Focusing Light with Curved mirrors 7. Eyeglasses, Microscopes, and Telescopes Everyday Phenomenon: Rainbows and Laser Refractive Surgery ...
... 6. Focusing Light with Curved mirrors 7. Eyeglasses, Microscopes, and Telescopes Everyday Phenomenon: Rainbows and Laser Refractive Surgery ...
Honors Question – Black Holes and Neutron Stars In Friday`s lecture
... mechanics, which says that two identical neutrons cannot occupy the same space. The theory of neutron stars was developed years ago, and the result is that they have a very specific size and mass. The radius of a neutron star is R=12 km (that's right, it's that small!). Since it is essentially a gia ...
... mechanics, which says that two identical neutrons cannot occupy the same space. The theory of neutron stars was developed years ago, and the result is that they have a very specific size and mass. The radius of a neutron star is R=12 km (that's right, it's that small!). Since it is essentially a gia ...
Ray optics
... For reflection of light, we have the situation shown in Figure 1. The two plane mirrors in Figure 2 are at 90o to each other, and the incident light beam is in the plane of the screen By making a careful sketch of the reflection beam in Figure 2, decide which best describes its final outgoing path. ...
... For reflection of light, we have the situation shown in Figure 1. The two plane mirrors in Figure 2 are at 90o to each other, and the incident light beam is in the plane of the screen By making a careful sketch of the reflection beam in Figure 2, decide which best describes its final outgoing path. ...
Our galaxy is one galaxy among billions of galaxies. Our solar
... Our galaxy is one galaxy among billions of galaxies. Our solar system is one star in our galaxy. Keywords Solar System: the sun and the celestial bodies moving around it. Astronomical Unit (AU): the distance between the Earth and the Sun (a measure of distance within the solar system) 1AU = 150,000, ...
... Our galaxy is one galaxy among billions of galaxies. Our solar system is one star in our galaxy. Keywords Solar System: the sun and the celestial bodies moving around it. Astronomical Unit (AU): the distance between the Earth and the Sun (a measure of distance within the solar system) 1AU = 150,000, ...
the size and structure of the universe
... • are balls of gas that produce their own energy by the process of NUCLEAR FUSION; they are the major features of galaxies – diameter of the sun (an average star) = 870,000 miles (1,392,000 km.) – That’s over 100,000 times the diameter of the Earth. Over 1,000,000 Earths could fit inside of the Sun ...
... • are balls of gas that produce their own energy by the process of NUCLEAR FUSION; they are the major features of galaxies – diameter of the sun (an average star) = 870,000 miles (1,392,000 km.) – That’s over 100,000 times the diameter of the Earth. Over 1,000,000 Earths could fit inside of the Sun ...
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. ...
Scaling the Universe
... information about the objects: The first star is 110,000 light years away. The second star is 152,000 light years away. The galaxy is 170,000 light years away. On the scale for the map, 1 light year=1mm. ...
... information about the objects: The first star is 110,000 light years away. The second star is 152,000 light years away. The galaxy is 170,000 light years away. On the scale for the map, 1 light year=1mm. ...
The Mathematics of Star Trek
... solar eclipse. During the eclipse, rays of light from stars passing close to the sun would be bent. The amount by which the light is bent could be deduced by comparing the stars’ relative positions to those at some other time of the year. Eddington found that the light bends exactly twice as much as ...
... solar eclipse. During the eclipse, rays of light from stars passing close to the sun would be bent. The amount by which the light is bent could be deduced by comparing the stars’ relative positions to those at some other time of the year. Eddington found that the light bends exactly twice as much as ...
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. ...
Gravitational Lensing: An Unique Probe of Dark Matter and Dark...
... was further developed independently by Klimov (1963), Liebes (1964) and Refsdal (1964a). Refsdal (1964b) demonstrated that if a background lensed source such as a quasar is variable in its light output, an absolute distance scale can be determined by measuring the time delay in the arrival of light ...
... was further developed independently by Klimov (1963), Liebes (1964) and Refsdal (1964a). Refsdal (1964b) demonstrated that if a background lensed source such as a quasar is variable in its light output, an absolute distance scale can be determined by measuring the time delay in the arrival of light ...
Sect.3
... Convex mirrors can NEVER create a real image Ex: security mirrors and safety mirrors in banks, parking garages. Allows you to see a larger area than you can with a plane mirror. ...
... Convex mirrors can NEVER create a real image Ex: security mirrors and safety mirrors in banks, parking garages. Allows you to see a larger area than you can with a plane mirror. ...
Word
... assumptions inherent in this calculation and the effects these may have on the accuracy of the answers. #4. “Tidal forces” are ubiquitous but often poorly appreciated or understood. As astronauts orbit the Earth they experience “weightlessness” because all parts of their bodies are being pulled with ...
... assumptions inherent in this calculation and the effects these may have on the accuracy of the answers. #4. “Tidal forces” are ubiquitous but often poorly appreciated or understood. As astronauts orbit the Earth they experience “weightlessness” because all parts of their bodies are being pulled with ...
HOMEWORK #1
... assumptions inherent in this calculation and the effects these may have on the accuracy of the answers. #4. “Tidal forces” are ubiquitous but often poorly appreciated or understood. As astronauts orbit the Earth they experience “weightlessness” because all parts of their bodies are being pulled with ...
... assumptions inherent in this calculation and the effects these may have on the accuracy of the answers. #4. “Tidal forces” are ubiquitous but often poorly appreciated or understood. As astronauts orbit the Earth they experience “weightlessness” because all parts of their bodies are being pulled with ...
MST Review DQ Week 5 - Biloxi Public Schools
... B. The probe will undergo constant acceleration until a force acts on it. C. The probe will continue on its current path until an unbalanced force acts on it. D. The force that makes the probe move through space is equal to its mass divided by its velocity. Justification--___________________________ ...
... B. The probe will undergo constant acceleration until a force acts on it. C. The probe will continue on its current path until an unbalanced force acts on it. D. The force that makes the probe move through space is equal to its mass divided by its velocity. Justification--___________________________ ...