Department of Physics, MA Jinnah Campus
... Fig 2: "Reactivity" - the product of the probability of reaction and the energy delivered per reaction. ...
... Fig 2: "Reactivity" - the product of the probability of reaction and the energy delivered per reaction. ...
Ch. 26.5: The Expanding Universe
... Universe may be 90% + dark matter Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The acceleration due to gravity does not match up with the amount of matter that we can see. A = F/m (F = ma rearranged) tells ...
... Universe may be 90% + dark matter Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The acceleration due to gravity does not match up with the amount of matter that we can see. A = F/m (F = ma rearranged) tells ...
r - astronomy.ohio
... “The big bang theory describes how our universe is evolving, not how it began.” – Jim Peebles ...
... “The big bang theory describes how our universe is evolving, not how it began.” – Jim Peebles ...
document
... • Edgar Allen Poe noted that universe may have been “created” and thus is not eternal – The distance light travels over the life of the universe is our “horizon”. ...
... • Edgar Allen Poe noted that universe may have been “created” and thus is not eternal – The distance light travels over the life of the universe is our “horizon”. ...
25 centuries ago, the ancients came up with theories such as:
... What happens to stars that come in contact with a black hole? a) Expand b) Condense c) Split in half d) Explode e) Sucked in Who invented the first telescope? a) Socrates b) Neil Armstrong c) Galileo d) Leonardo Da Vinci e) George Gamow What is the popular thought among scientists about how the Uni ...
... What happens to stars that come in contact with a black hole? a) Expand b) Condense c) Split in half d) Explode e) Sucked in Who invented the first telescope? a) Socrates b) Neil Armstrong c) Galileo d) Leonardo Da Vinci e) George Gamow What is the popular thought among scientists about how the Uni ...
Nuclear Astrophysics (a Cosmic Cookbook)
... • Need to know how to make helium (4 particles) - probability of 4 protons coming together are same time is almost zero • So what happens when just 2 protons fuse…….? ...
... • Need to know how to make helium (4 particles) - probability of 4 protons coming together are same time is almost zero • So what happens when just 2 protons fuse…….? ...
The Sun - www .alexandria .k12 .mn .us
... • Energy from below the surface is transported by convection and resulting in granulation. • The lighter areas reveal where gases are rising from below, while the darker areas show where cooler gases are sinking back down. ...
... • Energy from below the surface is transported by convection and resulting in granulation. • The lighter areas reveal where gases are rising from below, while the darker areas show where cooler gases are sinking back down. ...
lab 14B - atomic challenge
... About 13 billion years ago, when the universe was much younger, the only atoms in existence were hydrogen, helium, and a small amount of lithium. These are the three lightest elements. Today, we find carbon, oxygen, iron, and even uranium atoms. Where did these heavy atoms come from? All the elemen ...
... About 13 billion years ago, when the universe was much younger, the only atoms in existence were hydrogen, helium, and a small amount of lithium. These are the three lightest elements. Today, we find carbon, oxygen, iron, and even uranium atoms. Where did these heavy atoms come from? All the elemen ...
Quarter 1 Review of Transfer of Learning
... 3.) In our present chapter we are looking at how atoms combine to form compounds. We have looked at ionic and covalent compounds. Ionic compounds involve elements forming ions with a negative charge (called anions) or a positive charge (cations) by either gaining or losing electrons. Illustrate wit ...
... 3.) In our present chapter we are looking at how atoms combine to form compounds. We have looked at ionic and covalent compounds. Ionic compounds involve elements forming ions with a negative charge (called anions) or a positive charge (cations) by either gaining or losing electrons. Illustrate wit ...
Elements in our universe
... Atomic mass is the mass of an atom measured in atomic mass units, when the atom is at rest at its lowest energy level. Isotopes are elements of different forms. This is caused by the varying number of neutrons in each atom. Isotopes may have the same atomic number but different atomic mass. ...
... Atomic mass is the mass of an atom measured in atomic mass units, when the atom is at rest at its lowest energy level. Isotopes are elements of different forms. This is caused by the varying number of neutrons in each atom. Isotopes may have the same atomic number but different atomic mass. ...
Cosmic Times - Klenk Astronomy
... following general relativity, it states the universe will continue to expand at an accelerated rate, eventually reaching a point where life cannot exist. The accelerated expansion occurs due to dark energy, leading to everything being ripped apart into elementary particles. ...
... following general relativity, it states the universe will continue to expand at an accelerated rate, eventually reaching a point where life cannot exist. The accelerated expansion occurs due to dark energy, leading to everything being ripped apart into elementary particles. ...
Exploring the Early Universe - Solar Physics and Space Weather
... and positions annihilated to form low energy gamma-ray photons that can not reverse the process, which further raising the radiation content in the universe • From 1 second to 380,000 years, the universe is dominated by the radiation (so called primordial fireball) derived from the annihilation of p ...
... and positions annihilated to form low energy gamma-ray photons that can not reverse the process, which further raising the radiation content in the universe • From 1 second to 380,000 years, the universe is dominated by the radiation (so called primordial fireball) derived from the annihilation of p ...
Spacebook Research Project
... Page to make it look fancy. This is a template that I have already made for you that you can cut and paste!! Feel free to edit this page and creativity is worth extra credit!! We will cover all of the pieces of this essay in class though some of it will not be till the end of the unit. BiG BanG Ques ...
... Page to make it look fancy. This is a template that I have already made for you that you can cut and paste!! Feel free to edit this page and creativity is worth extra credit!! We will cover all of the pieces of this essay in class though some of it will not be till the end of the unit. BiG BanG Ques ...
The first step towards getting somewhere is to decide you are not
... The first step towards getting somewhere is to decide you are not going to stay where you are. ...
... The first step towards getting somewhere is to decide you are not going to stay where you are. ...
3_Ocean126_2006
... O2 built up forming ozone (filtering out UV rays and allowing more evolution) ...
... O2 built up forming ozone (filtering out UV rays and allowing more evolution) ...
Introduction - Assets - Cambridge
... a revolutionary picture that replaced Aristotle’s concept of a species as an eternal ideal form with concepts of groups of individuals making up competitive populations. To him the species became the abstraction and the groups of individuals the hard truths. Groups of individuals made up the populat ...
... a revolutionary picture that replaced Aristotle’s concept of a species as an eternal ideal form with concepts of groups of individuals making up competitive populations. To him the species became the abstraction and the groups of individuals the hard truths. Groups of individuals made up the populat ...
regan-gas-10jul2010
... • BUT!!! 4He can fuse with 2 other 4He (8Be) stuck together for a short time (~10-16sec) to make 12C…complicated but understood. ...
... • BUT!!! 4He can fuse with 2 other 4He (8Be) stuck together for a short time (~10-16sec) to make 12C…complicated but understood. ...
Discovery Of A Major Contradiction In Big Bang Cosmology Points
... Obviously, both sets of predictions are severely contradicted by the presently observed 2.73 K. Thus, instead of present CBR observations confirming the most important predictions of big bang cosmology, we find they contradict them. It appears there must be a major flaw in big bang’s underlying post ...
... Obviously, both sets of predictions are severely contradicted by the presently observed 2.73 K. Thus, instead of present CBR observations confirming the most important predictions of big bang cosmology, we find they contradict them. It appears there must be a major flaw in big bang’s underlying post ...
The Origin of the Elements - Indiana University Astronomy
... Big Bang Nucleosynthesis Within first three minutes, hydrogen & helium formed At t =1 s, T=10,000,000,000 K: soup of particles: photons, electrons, positrons, protons, neutrons. ...
... Big Bang Nucleosynthesis Within first three minutes, hydrogen & helium formed At t =1 s, T=10,000,000,000 K: soup of particles: photons, electrons, positrons, protons, neutrons. ...
How many atoms make up the universe?
... density of the Universe should be close to the so-called critical density that separates an open universe that always grows from a closed universe that ultimately collapses again. • This critical mass density is currently equal to 9.9x10-27 kg/m3. (5.9 Hydrogen /m3) • 4.6% Atoms. More than 95% of th ...
... density of the Universe should be close to the so-called critical density that separates an open universe that always grows from a closed universe that ultimately collapses again. • This critical mass density is currently equal to 9.9x10-27 kg/m3. (5.9 Hydrogen /m3) • 4.6% Atoms. More than 95% of th ...
PHYS 1400 Sample Exam Questions: Properties of Matter (Atoms) 1
... D) He calculated rates of diffusion, which could be measured experimentally. 19. What's so important about Max vonLaue and his shooting a beam of xrays at a piece of metallic foil? D) Not only did it show that atoms really exist, it also revealed that long—range order was possible, and that differen ...
... D) He calculated rates of diffusion, which could be measured experimentally. 19. What's so important about Max vonLaue and his shooting a beam of xrays at a piece of metallic foil? D) Not only did it show that atoms really exist, it also revealed that long—range order was possible, and that differen ...
Making Heavier Metals
... Only the very lightest elements (Hydrogen, Helium and Lithium [2]) were created at the time of the Big Bang and therefore present in the early universe. All the other heavier elements we now see around us were produced at a later time by nucleosynthesis inside stars. In those "element factories", nu ...
... Only the very lightest elements (Hydrogen, Helium and Lithium [2]) were created at the time of the Big Bang and therefore present in the early universe. All the other heavier elements we now see around us were produced at a later time by nucleosynthesis inside stars. In those "element factories", nu ...
Does Dark Energy Really Exist? Or does Earth occupy a very
... galaxies. This phenomenon, known as redshift, is neatly explained as a stretching of light waves by the expansion of space. Also, microwave detectors reveal an almost perfectly smooth curtain of radiation emanating from very early times: the cosmic microwave background, a relic of the primordial fir ...
... galaxies. This phenomenon, known as redshift, is neatly explained as a stretching of light waves by the expansion of space. Also, microwave detectors reveal an almost perfectly smooth curtain of radiation emanating from very early times: the cosmic microwave background, a relic of the primordial fir ...