Gravity, General Relativity, and Dark Matter
... While many people learn about Newton and his theory of gravity, most do not realize that our best understanding of gravity actually comes from Einstein. During the first decade of the 1900s, Einstein began to compose his theory of general relativity and it completely changed the way we view gravity. ...
... While many people learn about Newton and his theory of gravity, most do not realize that our best understanding of gravity actually comes from Einstein. During the first decade of the 1900s, Einstein began to compose his theory of general relativity and it completely changed the way we view gravity. ...
The Sun and Stars 4.1 Energy formation and layers of the Sun 4.2
... 1. How large is the Sun compared to Earth? 2. Other than the Sun, what is our “other” source of energy (don’t think combustion or gravity)? 3. What causes the Sun’s magnetic fields? 4. What is the product of nuclear fusion? 5. Draw a Venn diagram comparing and contrasting neutrinos and photons? 6. D ...
... 1. How large is the Sun compared to Earth? 2. Other than the Sun, what is our “other” source of energy (don’t think combustion or gravity)? 3. What causes the Sun’s magnetic fields? 4. What is the product of nuclear fusion? 5. Draw a Venn diagram comparing and contrasting neutrinos and photons? 6. D ...
Scientific Evidence for A
... October 3, 4004 BC. These dates and time scale were widely backed by the church for many years, driving many scientists and other people away from God! In 1961 Henry Morris, a civil engineering Professor and John Whitcomb, a theology Professor, published a book entitled The Genesis Flood, in 1963 th ...
... October 3, 4004 BC. These dates and time scale were widely backed by the church for many years, driving many scientists and other people away from God! In 1961 Henry Morris, a civil engineering Professor and John Whitcomb, a theology Professor, published a book entitled The Genesis Flood, in 1963 th ...
Copernican Revolution
... Considering Kepler's three laws of planetary motion (you do not have to memorize them): What shape orbit does a planet have? When a satellite orbits the Earth, does it move faster at perigee or at apogee? When a comet orbits the Sun, does it orbit faster at perihelion or at aphelion? What is meant b ...
... Considering Kepler's three laws of planetary motion (you do not have to memorize them): What shape orbit does a planet have? When a satellite orbits the Earth, does it move faster at perigee or at apogee? When a comet orbits the Sun, does it orbit faster at perihelion or at aphelion? What is meant b ...
Analytic Models for the Mechanical Structure of the Solar Core
... where Mic is the inner core mass. For the n = 5 polytrope, equation (16) holds exactly everywhere, the total mass M is finite and independent of the radius R, which is infinite. In this special case, the entire star is strictly homologous to the core. In centrally-concentrated non-polytropic stars, ...
... where Mic is the inner core mass. For the n = 5 polytrope, equation (16) holds exactly everywhere, the total mass M is finite and independent of the radius R, which is infinite. In this special case, the entire star is strictly homologous to the core. In centrally-concentrated non-polytropic stars, ...
Earliest Datable Records of Aurora
... from Lieut. N. Home to describe aurora observation at Halifax on 28 August 1859. At 17:00, “a long narrow belt of cloud from E. to W. having a peculiar orange-white appearance” was seen, and at 20:00 “this cloud suddenly became luminous at its eastern extremity”. This cloud is unlikely to have been ...
... from Lieut. N. Home to describe aurora observation at Halifax on 28 August 1859. At 17:00, “a long narrow belt of cloud from E. to W. having a peculiar orange-white appearance” was seen, and at 20:00 “this cloud suddenly became luminous at its eastern extremity”. This cloud is unlikely to have been ...
PHY104 - Introduction to Astrophysics
... Generally speaking the flux is a perfectly useful measure of how much light we receive on Earth. There are some practical difficulties in measuring the flux of course; our detectors are not 100% efficient, and we have to correct for the amount of light absorbed by the atmosphere. Nevertheless, once ...
... Generally speaking the flux is a perfectly useful measure of how much light we receive on Earth. There are some practical difficulties in measuring the flux of course; our detectors are not 100% efficient, and we have to correct for the amount of light absorbed by the atmosphere. Nevertheless, once ...
Brightness and Distance
... This luminous intensity is measured in candelas. A candela is one lumen per steradian (a unit of solid angle). It is important to note that luminous intensity takes into account the response of the human visual system. In other words, our eyes are not equally sensitive to all wavelengths of visible ...
... This luminous intensity is measured in candelas. A candela is one lumen per steradian (a unit of solid angle). It is important to note that luminous intensity takes into account the response of the human visual system. In other words, our eyes are not equally sensitive to all wavelengths of visible ...
calendars from around the world
... We cannot know when our ancestors first noted the cyclical events in the heavens that govern our sense of passing time. We have proof that Palaeolithic people thought about and recorded the astronomical cycles that give us our modern calendars. For example, a 30,000 year-old animal bone with gouged ...
... We cannot know when our ancestors first noted the cyclical events in the heavens that govern our sense of passing time. We have proof that Palaeolithic people thought about and recorded the astronomical cycles that give us our modern calendars. For example, a 30,000 year-old animal bone with gouged ...
Life on Our Evolving Planet slides
... five billion years of physical, chemical, and/or biological evolution because of the flows of energy and/or matter into and/or out of these systems, a process that I call global evolution. Each section addresses the structures, functions, composition, interactions and flows of energy and matter, and ...
... five billion years of physical, chemical, and/or biological evolution because of the flows of energy and/or matter into and/or out of these systems, a process that I call global evolution. Each section addresses the structures, functions, composition, interactions and flows of energy and matter, and ...
Solar System Tables
... atmospheric pressure on Mars is low, temperature can decrease by as much as 18 F ∞ (10 C ∞) from the surface to a height of just 3 feet (1 meter). 3Jupiter, Saturn, Uranus and Neptune are Gas Giants and thus do not have, in the conventional sense, a surface below the clouds. Therefore, they do not h ...
... atmospheric pressure on Mars is low, temperature can decrease by as much as 18 F ∞ (10 C ∞) from the surface to a height of just 3 feet (1 meter). 3Jupiter, Saturn, Uranus and Neptune are Gas Giants and thus do not have, in the conventional sense, a surface below the clouds. Therefore, they do not h ...
Module 4.1 - The Scale of the Universe [slide 1] We now turn to
... the two just could not just get into an agreement. The reasons for this were they made different assumptions, they used different calibrations, and things went like that until 1980's. [slide 7] But even in the modern days, the spread continued. People started being more careful about the error bars, ...
... the two just could not just get into an agreement. The reasons for this were they made different assumptions, they used different calibrations, and things went like that until 1980's. [slide 7] But even in the modern days, the spread continued. People started being more careful about the error bars, ...
Magnitudes and Colours of Stars - Lincoln
... Let’s leave brightness for now, and start thinking about stellar size: another important property for classifying stars. It is almost impossible to actually see a star through a telescope and measure its physical diameter. We can do this with objects within the Solar System, but the stars are simply ...
... Let’s leave brightness for now, and start thinking about stellar size: another important property for classifying stars. It is almost impossible to actually see a star through a telescope and measure its physical diameter. We can do this with objects within the Solar System, but the stars are simply ...
Exercise 8
... 8. The actual order from nearest to furthest are: Camera A: 4, 14, 13, 7, 3 Camera B: 29, 21, 19, 27, 22 Camera C: 36, 33, 41, 44, 42 How accurate were you? Is the criterion or criteria you used a good way to find galaxy distances? ...
... 8. The actual order from nearest to furthest are: Camera A: 4, 14, 13, 7, 3 Camera B: 29, 21, 19, 27, 22 Camera C: 36, 33, 41, 44, 42 How accurate were you? Is the criterion or criteria you used a good way to find galaxy distances? ...
2012 NSS Phy 2-(E).
... For multiple-choice questions, blacken the appropriate circle with an HB pencil. You should mark only ONE answer for each question. If you mark more than one answer, you will receive NO MARKS for that question. ...
... For multiple-choice questions, blacken the appropriate circle with an HB pencil. You should mark only ONE answer for each question. If you mark more than one answer, you will receive NO MARKS for that question. ...
Interplanetary Vagabonds
... cross Earth’s orbit They are called Apollo asteroids and raise the concern of a possible collision with the Earth 4400 such asteroids have been discovered so far, of which about 800 have been designated as potentially hazardous, due to their size Another group of asteroids that only intersect the or ...
... cross Earth’s orbit They are called Apollo asteroids and raise the concern of a possible collision with the Earth 4400 such asteroids have been discovered so far, of which about 800 have been designated as potentially hazardous, due to their size Another group of asteroids that only intersect the or ...
ASTRO-114--Lecture 05-
... know it’s inconsistent. But when we get over to here, we don’t call that half moon. This is quarter, this is full. If we were being consistent, we should call this half moon instead of quarter and this full or we should call this quarter and this half. But we don’t. We see a fully lit moon here even ...
... know it’s inconsistent. But when we get over to here, we don’t call that half moon. This is quarter, this is full. If we were being consistent, we should call this half moon instead of quarter and this full or we should call this quarter and this half. But we don’t. We see a fully lit moon here even ...
Microsoft Word
... seven heavenly bodies “wandering” among the stars on the celestial sphere. These seven heavenly bodies were the sun, the moon and the planets Mercury, Venus, Mars, Jupiter and Saturn. The outermost planets (Neptune, Uranus and Pluto) also “wander” but the ancients didn't know about them because you ...
... seven heavenly bodies “wandering” among the stars on the celestial sphere. These seven heavenly bodies were the sun, the moon and the planets Mercury, Venus, Mars, Jupiter and Saturn. The outermost planets (Neptune, Uranus and Pluto) also “wander” but the ancients didn't know about them because you ...
In Class Activity Manual - Department of Physics and Astronomy
... can arrange it, go for class periods longer than 50 minutes. I schedule my class for two 75-minute periods per week. That permits a group activity (say a quiz) at the beginning and one near (but not at!) the end. ❏ Once the groups are functioning smoothly (about a month), you will find many other in ...
... can arrange it, go for class periods longer than 50 minutes. I schedule my class for two 75-minute periods per week. That permits a group activity (say a quiz) at the beginning and one near (but not at!) the end. ❏ Once the groups are functioning smoothly (about a month), you will find many other in ...
New Phenomena: Recent Results and Prospects from the Fermilab
... “Every particle in the universe attracts every other particle with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between them. This force acts along the line joining the particles” • Gravity has a magnitude and direction Gravit ...
... “Every particle in the universe attracts every other particle with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between them. This force acts along the line joining the particles” • Gravity has a magnitude and direction Gravit ...
Lecture 2 Understand the sky we see from the Earth
... • What is the cause of the seasons on Earth? • As the Earth orbits the sun, the tilt of the axis causes different portions of the Earth to receive more or less direct sunlight at different times of year. The two hemispheres have opposite seasons. The summer solstice is the time when the northern hem ...
... • What is the cause of the seasons on Earth? • As the Earth orbits the sun, the tilt of the axis causes different portions of the Earth to receive more or less direct sunlight at different times of year. The two hemispheres have opposite seasons. The summer solstice is the time when the northern hem ...