The Origins of Physics, Chemistry, and Biology, or Big Bang is the
... when hydrogen and helium nuclei were created. After 380 thousand years the expanding Universe cooled down sufficiently for getting electrons attached to atomic nuclei; thus neutral atoms of hydrogen, helium, lithium, beryllium and boron were stable for the first time. After 200 million years first g ...
... when hydrogen and helium nuclei were created. After 380 thousand years the expanding Universe cooled down sufficiently for getting electrons attached to atomic nuclei; thus neutral atoms of hydrogen, helium, lithium, beryllium and boron were stable for the first time. After 200 million years first g ...
13800000000 Years Ago The First Sky
... What do they tell us ? Age of the Universe = 13800000000 Years Size of our Universe = 13800000000 Light Years = 100000000000000000000000 kilo-meters !!! ...
... What do they tell us ? Age of the Universe = 13800000000 Years Size of our Universe = 13800000000 Light Years = 100000000000000000000000 kilo-meters !!! ...
Gravitational mass
... • Gravity is so strong that photons can’t escape from its surface. •Can see X-Rays from matter being pulled into it. Ch 33 ...
... • Gravity is so strong that photons can’t escape from its surface. •Can see X-Rays from matter being pulled into it. Ch 33 ...
Unit8TheUniverse
... A. 13-15 b.y.a. the Universe came into being and began to expand at an incredible rate (Inflation). B. Evidence for the Big Bang: The BBT is not designed to explain the origins of the universe only how it developed. 1). Expanding Universe 2). Background radiation that was predicted and later found. ...
... A. 13-15 b.y.a. the Universe came into being and began to expand at an incredible rate (Inflation). B. Evidence for the Big Bang: The BBT is not designed to explain the origins of the universe only how it developed. 1). Expanding Universe 2). Background radiation that was predicted and later found. ...
here
... 1. Which of the following explains the expansion of the Universe? (a) The Special Theory of Relativity. (b) The Big Bang. (c) The theory of Inflation. (d) Both (b) and (c). 2. Astronomers use the fact that atoms have quantized energy levels to: (a) Determine the elemental abundances of stars and oth ...
... 1. Which of the following explains the expansion of the Universe? (a) The Special Theory of Relativity. (b) The Big Bang. (c) The theory of Inflation. (d) Both (b) and (c). 2. Astronomers use the fact that atoms have quantized energy levels to: (a) Determine the elemental abundances of stars and oth ...
Big Bang Theory
... stars (much bigger than our sun) explode and immense energy is released (equal to a ...
... stars (much bigger than our sun) explode and immense energy is released (equal to a ...
Abstract - Beyond Center for Fundamental Concepts in Science
... Gravitational Waves from Inflation may have been discovered, or may soon be discovered. If they are, this will push our empirical handle on the universe forward by 49 orders of magnitude, and will allow us to explore issues ranging from supersymmetry to grand unification, the quantum theory of gravi ...
... Gravitational Waves from Inflation may have been discovered, or may soon be discovered. If they are, this will push our empirical handle on the universe forward by 49 orders of magnitude, and will allow us to explore issues ranging from supersymmetry to grand unification, the quantum theory of gravi ...
homework assignment 1
... 3. Compare the size of an electron to the size of the universe. By what factor is the universe bigger? Approximately how many orders of magnitude is this? ...
... 3. Compare the size of an electron to the size of the universe. By what factor is the universe bigger? Approximately how many orders of magnitude is this? ...
The Big Bang Theory - Red Hook Central Schools
... expanding: an infinitesimally small balloon expanding to the size of our current universe ...
... expanding: an infinitesimally small balloon expanding to the size of our current universe ...
1.1 Safety in the Science Classroom
... 10.1 The Early Universe • Until 100 years ago, scientists believed nothing ever changed in outer space. a) Using powerful telescopes, astronomers like Edwin Hubble discovered many new celestial bodies, and observed that everything in the universe was moving further apart. b) The universe expands li ...
... 10.1 The Early Universe • Until 100 years ago, scientists believed nothing ever changed in outer space. a) Using powerful telescopes, astronomers like Edwin Hubble discovered many new celestial bodies, and observed that everything in the universe was moving further apart. b) The universe expands li ...
What is the cosmic microwave background radiation
... you're seeing farther and farther back in time--sometimes very far back indeed. When you see Jupiter shining in the night sky, for example, you're looking about an hour back in time, whereas the light from distant galaxies captured by telescopes today was emitted millions of years ago. The CMB is th ...
... you're seeing farther and farther back in time--sometimes very far back indeed. When you see Jupiter shining in the night sky, for example, you're looking about an hour back in time, whereas the light from distant galaxies captured by telescopes today was emitted millions of years ago. The CMB is th ...
The Earth in Space Scientific evidence indicates the universe is
... gravitational attraction to form stars and galaxies. According to the Big Bang theory, the universe has been continually expanding at an increasing rate since its formation about 13.7 billion years ago. E5.1A Describe the position and motion of our solar system in our galaxy and the overall scale, s ...
... gravitational attraction to form stars and galaxies. According to the Big Bang theory, the universe has been continually expanding at an increasing rate since its formation about 13.7 billion years ago. E5.1A Describe the position and motion of our solar system in our galaxy and the overall scale, s ...
The Big Bang Theory
... The Wilkinson Microwave Anisotropy Probe (WMAP) is a NASA Explorer mission that launched June 2001 to make fundamental measurements of cosmology -- the study of the properties of our universe as a whole ...
... The Wilkinson Microwave Anisotropy Probe (WMAP) is a NASA Explorer mission that launched June 2001 to make fundamental measurements of cosmology -- the study of the properties of our universe as a whole ...
P1_Physics_Summary_Topic_3
... Keywords: cosmic microwave background radiation, red shift, space probes, rovers ...
... Keywords: cosmic microwave background radiation, red shift, space probes, rovers ...
Earth Science Reading Questions 2
... 1. What do the different types of telescopes detect? 2. What does a spectroscope do? 3. What does the spectrum of a star tell you about the star? 4. What does wavelength have to do with color? 5. What causes a blue shift? 6. What causes a red shift? 7. What is the Doppler effect? 8. Answer the two q ...
... 1. What do the different types of telescopes detect? 2. What does a spectroscope do? 3. What does the spectrum of a star tell you about the star? 4. What does wavelength have to do with color? 5. What causes a blue shift? 6. What causes a red shift? 7. What is the Doppler effect? 8. Answer the two q ...
Earth - Capital High School
... taken in visible light, looking back in time more than 13 billion years. The HUDF contains an estimated 10,000 galaxies. The total field of view represents only 1 ten millionth of the total sky. THIS MAY NOT BE TRUE, I JUST FOUND IT ON THE INTERNET ...
... taken in visible light, looking back in time more than 13 billion years. The HUDF contains an estimated 10,000 galaxies. The total field of view represents only 1 ten millionth of the total sky. THIS MAY NOT BE TRUE, I JUST FOUND IT ON THE INTERNET ...
Astronomical Unit (AU)
... between the distance of the galaxies and the speed at which they are moving away from us • The farther away the galaxy, the faster it is receding (moving away) from the Earth. ...
... between the distance of the galaxies and the speed at which they are moving away from us • The farther away the galaxy, the faster it is receding (moving away) from the Earth. ...
Our Galaxy and the Universe
... • the galaxy we live in is called the Milky Way. It is 100,000 LY across and contains about 300 billion stars. ...
... • the galaxy we live in is called the Milky Way. It is 100,000 LY across and contains about 300 billion stars. ...
Vocabulary Part Two
... Bright streak of light that results when a meteoroid burns up in the Earth’s atmosphere. Sometimes called a “shooting star”. ...
... Bright streak of light that results when a meteoroid burns up in the Earth’s atmosphere. Sometimes called a “shooting star”. ...
Flatness problem
The flatness problem (also known as the oldness problem) is a cosmological fine-tuning problem within the Big Bang model of the universe. Such problems arise from the observation that some of the initial conditions of the universe appear to be fine-tuned to very 'special' values, and that a small deviation from these values would have had massive effects on the nature of the universe at the current time.In the case of the flatness problem, the parameter which appears fine-tuned is the density of matter and energy in the universe. This value affects the curvature of space-time, with a very specific critical value being required for a flat universe. The current density of the universe is observed to be very close to this critical value. Since the total density departs rapidly from the critical value over cosmic time, the early universe must have had a density even closer to the critical density, departing from it by one part in 1062 or less. This leads cosmologists to question how the initial density came to be so closely fine-tuned to this 'special' value.The problem was first mentioned by Robert Dicke in 1969. The most commonly accepted solution among cosmologists is cosmic inflation, the idea that the universe went through a brief period of extremely rapid expansion in the first fraction of a second after the Big Bang; along with the monopole problem and the horizon problem, the flatness problem is one of the three primary motivations for inflationary theory.