germ free handle
... little natural exposure to UV light. So the teens are lighting their door handle from within. Now, every part of the coated handle will see UV light. To make sure the interior light reaches the coated surface, the teens fashioned their door handle from a long cylinder of clear glass. Each end fits i ...
... little natural exposure to UV light. So the teens are lighting their door handle from within. Now, every part of the coated handle will see UV light. To make sure the interior light reaches the coated surface, the teens fashioned their door handle from a long cylinder of clear glass. Each end fits i ...
Red Shift - The General Science Journal
... frequency as at the source. Even this relationship cannot continue indefinitely. At some point the slowing and the separating functions must diverge and affect frequency. One reason would be the existence of many other gravitation sources. The divergence leads to the slowing having more effect upon ...
... frequency as at the source. Even this relationship cannot continue indefinitely. At some point the slowing and the separating functions must diverge and affect frequency. One reason would be the existence of many other gravitation sources. The divergence leads to the slowing having more effect upon ...
Chapter 16
... large compared to the size of the galaxies themselves, and galactic collisions are frequent. The “cartwheel” galaxy on the left appears to be the result of a head-on collision with another galaxy, perhaps one of those on the right. Copyright © 2010 Pearson Education, Inc. ...
... large compared to the size of the galaxies themselves, and galactic collisions are frequent. The “cartwheel” galaxy on the left appears to be the result of a head-on collision with another galaxy, perhaps one of those on the right. Copyright © 2010 Pearson Education, Inc. ...
Warm-Up Monday, July 23, 2012
... • A. The stars of Orion are closer together in space. • B. The stars in Orion orbit the Sun, just like the planets. • C. The brightest stars in Orion are the ones that are closest to us. • D. You can’t tell if the brightest stars in Orion are really brighter than the others, or if they are just clos ...
... • A. The stars of Orion are closer together in space. • B. The stars in Orion orbit the Sun, just like the planets. • C. The brightest stars in Orion are the ones that are closest to us. • D. You can’t tell if the brightest stars in Orion are really brighter than the others, or if they are just clos ...
Combining and Choosing Analytical Techniques
... The sample as a gas enters the evacuated tube. Positive ions are formed in the ionisation chamber when an electron beam dislodges electrons from the sample atoms The positive ions are accelerated by an electric field The ions enter a magnetic field perpendicular to their path. This causes the ions t ...
... The sample as a gas enters the evacuated tube. Positive ions are formed in the ionisation chamber when an electron beam dislodges electrons from the sample atoms The positive ions are accelerated by an electric field The ions enter a magnetic field perpendicular to their path. This causes the ions t ...
PowerPoint
... Starburst Galaxies • Galaxies with enhanced rates of star formation • Usually forming massive stars for a short period (few Myr). • Probably due to collisions ...
... Starburst Galaxies • Galaxies with enhanced rates of star formation • Usually forming massive stars for a short period (few Myr). • Probably due to collisions ...
Formation of the Solar System Chapter 8
... the result of a near collision of the Sun with another star. Planets formed from debris of the collision. But we know now that collision (or near collisions) between two stars are very, very rare. Considering that collision are rare, the proposed idea of the collision may explain a unique event on h ...
... the result of a near collision of the Sun with another star. Planets formed from debris of the collision. But we know now that collision (or near collisions) between two stars are very, very rare. Considering that collision are rare, the proposed idea of the collision may explain a unique event on h ...
Visions of the Universe
... title suggests, in this course we shall study the discoveries of modern astronomy and their implications for our place in the cosmos. Within the past decade, humans have discovered new worlds around other stars and determined that the universe is expanding at an accelerating rate. You are lucky to b ...
... title suggests, in this course we shall study the discoveries of modern astronomy and their implications for our place in the cosmos. Within the past decade, humans have discovered new worlds around other stars and determined that the universe is expanding at an accelerating rate. You are lucky to b ...
Which Constellation is Which?
... You probably know some constellations. The Big Dipper looks like a giant pot with a long handle. Orion is named after a great hunter. You can see his belt, marked by three bright stars. Constellations are imaginary pictures in the sky. The stars look like they are all the same distance away. That’s ...
... You probably know some constellations. The Big Dipper looks like a giant pot with a long handle. Orion is named after a great hunter. You can see his belt, marked by three bright stars. Constellations are imaginary pictures in the sky. The stars look like they are all the same distance away. That’s ...
MS-SCI-PS-Unit 4 -- Chapter 15- Stars, Galaxies
... focuses a large amount of light onto a small area. The larger the mirror, the more light the telescope can collect. The largest optical telescopes today are all reflecting telescopes. Radio Telescopes Devices used to detect radio waves from objects in space are called radio telescopes. Most radio te ...
... focuses a large amount of light onto a small area. The larger the mirror, the more light the telescope can collect. The largest optical telescopes today are all reflecting telescopes. Radio Telescopes Devices used to detect radio waves from objects in space are called radio telescopes. Most radio te ...
Astronomy - Marshall Public Schools
... system is believed to have formed from a cloud of spinning dust and gas that clumped due to gravity about 4.6 billion years ago. 2. The 3 main things found on earth that allow life as we know it to exist are liquid water, moderate temperatures, breathable atmosphere. 3. I can compare the atmosphere, ...
... system is believed to have formed from a cloud of spinning dust and gas that clumped due to gravity about 4.6 billion years ago. 2. The 3 main things found on earth that allow life as we know it to exist are liquid water, moderate temperatures, breathable atmosphere. 3. I can compare the atmosphere, ...
Two Quick Light Experiments
... Incandescent light is electromagnetic radiation given off a body because that body has a temperature. Because this radiation is due to a thermal process, it tends to be randomized. Thus, there is a spread of frequencies (hence white light) and also no preferred direction for the electric and magneti ...
... Incandescent light is electromagnetic radiation given off a body because that body has a temperature. Because this radiation is due to a thermal process, it tends to be randomized. Thus, there is a spread of frequencies (hence white light) and also no preferred direction for the electric and magneti ...
Mark scheme for Topic 11 - Cambridge Resources for the IB Diploma
... The optically active substance is placed in between crossed polarizers. The second polarizer is rotated until no light gets transmitted and the angle of rotation is measured. The concentration of the optically active solution is changed and the process is repeated to see the variation with concentra ...
... The optically active substance is placed in between crossed polarizers. The second polarizer is rotated until no light gets transmitted and the angle of rotation is measured. The concentration of the optically active solution is changed and the process is repeated to see the variation with concentra ...
ASTR 300 Stars and Stellar Systems Spring 2011
... companion star. Astronomers were puzzled by them because they believe that all millisecond pulsars have been spun up by mass transfer from a companion star. This shows that some can be spun up but then destroy the star that spun them up. 5. Suppose that a neutron star has a radius of 10 km and a tem ...
... companion star. Astronomers were puzzled by them because they believe that all millisecond pulsars have been spun up by mass transfer from a companion star. This shows that some can be spun up but then destroy the star that spun them up. 5. Suppose that a neutron star has a radius of 10 km and a tem ...
Refraction - Snell`s Law, Internal Reflection, Dispersion (PowerPoint)
... The fact that rainbows are semicircular tells you that the light from one has to come from the water drops at the right angle angle*. When white light enters a water drop light is refracted and disperses into its component colors. Violet is bent the most and red the least. When the rays reach the op ...
... The fact that rainbows are semicircular tells you that the light from one has to come from the water drops at the right angle angle*. When white light enters a water drop light is refracted and disperses into its component colors. Violet is bent the most and red the least. When the rays reach the op ...
Formation of terrestrial planets With our penchant for seeing
... make sense that planets would be good places for life. Stars are too hot for complicated molecules to exist, and cold places in space (such as interstellar clouds) are so low-density that it’s difficult to imagine much activity taking place on time scales short enough to be of interest. We therefore ...
... make sense that planets would be good places for life. Stars are too hot for complicated molecules to exist, and cold places in space (such as interstellar clouds) are so low-density that it’s difficult to imagine much activity taking place on time scales short enough to be of interest. We therefore ...
HEA_Accretion_2003_04
... R~10,000km so nuclear burning more efficient by factor of ~50. • Accretion still important process however - nuclear burning on surface => nova ...
... R~10,000km so nuclear burning more efficient by factor of ~50. • Accretion still important process however - nuclear burning on surface => nova ...
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.