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| ||8C20.42||Gravitational Lens||The prediction and test of Einstein's 1916 prediction. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 38(9), 524]||T | ||8C20.42||Gravitational Lens||The prediction and test of Einstein's 1916 prediction. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 38(9), 524]|| |
[:PiraScheme#Astronomy: Table of Astronomy] |
[:StellarAstronomy:Astronomy(8B):StellarAstronomy] |
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[:Demonstrations:Lecture Demonstrations] |
Cosmology
PIRA classification 8C
8C10. Models of the Universe
PIRA # |
Demonstration Name |
Abstract |
8C10.05 |
Cosmological Models |
A discussion of Red Shift, unbound universe, and other factors, and how they are applied to comological models. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 18(9), 639] |
8C10.10 |
The Big Bang |
The Big Bang and chirality of the universe. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 38(9), 564] |
8C10.20 |
Cosmic Microwave Background |
The study of anisotropies in the CMB. See [http://scitation.aip.org/ajp/ American Journal of Physics - AJP 70(2), 106] |
8C10.25 |
Steady State, Expanding, or Contracting Universe |
The general Doppler formula in a nonstatic universe is derived. See [http://scitation.aip.org/ajp/ American Journal of Physics - AJP 45(7), 642] |
8C10.25 |
Steady State, Expanding, or Contracting Universe |
A look at the question " Is the universe open or closed"? See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 16(3), 137] |
8C10.30 |
Expanding Universe |
Pull a rubber hose threaded through five large styrofoam balls. See [ http://groups.physics.umn.edu/demo/old_page/astronomy.html University of Minnesota Handbook - 8C10.10] |
8C10.30 |
Expanding Universe |
Pull on a rubber rope with "galaxies" attached. See [http://scitation.aip.org/ajp/ American Journal of Physics - AJP 50(6),571] |
8C10.30 |
Expanding Universe |
Using a strip of latex to model how long a light pulse would take to travel from one galaxy to another in an expanding universe. See [http://scitation.aip.org/ajp/ American Journal of Physics - AJP 69(2), 125] |
8C10.30 |
Expanding Universe |
Use transparencies of a sample universe on the overhead to show center of expansion in an expanding universe. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 29(2), 103] |
8C10.35 |
Inflating Balloon |
A balloon with galaxies drawn on is blown up with compressed air. See [ http://groups.physics.umn.edu/demo/old_page/astronomy.html University of Minnesota Handbook - 8C10.15] |
8C10.37 |
Expanding Universe on a White Board |
|
8C10.39 |
Expanding Universe |
Are we able to use experimantal evidence to calculate the total vector momentum of our expanding universe. Is it zero? See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 20(9), 617] |
8C10.40 |
Bubble Universe |
Use a straw to blow bubbles in liquid soap. See [ http://groups.physics.umn.edu/demo/old_page/astronomy.html University of Minnesota Handbook - 8C10.20] |
8C10.50 |
Galaxy Model |
Show a 16" diameter galaxy model. See [ http://groups.physics.umn.edu/demo/old_page/astronomy.html University of Minnesota Handbook - 8C10.30] |
8C10.55 |
View of Galactic Center |
|
8C10.60 |
Spiral Galaxies |
|
8C10.70 |
Radio Galaxies |
|
8C10.80 |
One Million Galaxies |
A poster showing 1 million galaxies taken at radio wavelengths. |
8C20. Gravitational Effects
PIRA # |
Demonstration Name |
Abstract |
8C20.10 |
Klein Bottle |
A Klein bottle has been made from a 20 L flask. See [ http://groups.physics.umn.edu/demo/old_page/astronomy.html University of Minnesota Handbook - 8C10.40] |
8C20.20 |
Moebius Strip |
A strip of aluminum about six inches wide and six feet long is made into a Moebius strip. See [ http://groups.physics.umn.edu/demo/old_page/astronomy.html University of Minnesota Handbook - 8C10.45] |
8C20.30 |
Saddle Shape |
A ball is not stable when placed on a saddle shape, but surprisingly does become stable if the saddle shape is rotated. See [http://scitation.aip.org/ajp/ American Journal of Physics - AJP 63(2), 186] |
8C20.30 |
Saddle Shape |
A butternut squash provides a negative space over small distances. At large distances the space becomes positive. A hubbard squash has a positive space. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 15(5), 298] |
8C20.30 |
Saddle Shape |
Two models of a negatively curved two-dimensional space. One of fiberglass, and one made with strings. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 33(5), 286] |
8C20.30 |
Saddle Shape |
Two more examples. A hollowed out grapefruit is a positive space. Pringles potato chips are examples of negative space. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 16(1), 8] |
8C20.35 |
Non-Euclidean Geometry |
A discussion of gravity touching on non-Euclidean geometry and the geometry of three dimensional space. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 22(9), 557] |
8C20.35 |
Non-Euclidean Geometry |
A helpful discussion about space curvature and how to visualize it. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 29(3), 147] |
8C20.35 |
Non-Euclidean Geometry |
Counting distant radio sources to determine if the overall curvature of space is positively curved, flat, or negatively curved. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 30(2), 92] |
8C20.40 |
Gravitational Lens |
A machined Plexiglas lens bends light like a black hole. See [http://groups.physics.umn.edu/demo/old_page/astronomy.html University of Minnesota Handbook - 8C20.40] |
8C20.40 |
Gravitational Lenses |
A computer program to visualize gravitational lenses. See [http://scitation.aip.org/ajp/ American Journal of Physics - AJP 69(2), 218] |
8C20.40 |
Gravitational Lens |
An equation is developed for constructing a Plexiglas lens. See [http://scitation.aip.org/ajp/ American Journal of Physics - AJP 48(10),883] |
8C20.40 |
Gravitational Lens |
Directions for constructing a gravitational lens simulator from Plexiglas. Ref: Phys.Rev. 133, B835 (1964). See [http://scitation.aip.org/ajp/ American Journal of Physics - AJP 37(1),103] |
8C20.40 |
Gravitational Lens |
A plastic lens that bends light the same way a black hole does. Theory and directions for construction of a lens. See [http://scitation.aip.org/ajp/ American Journal of Physics - AJP 49(7),652] |
8C20.40 |
Gravitational Lens |
Viewing a fish in a fish tank. Refraction of light as the optical counterpart of a gravitational lens. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 25(7), 440] |
8C20.40 |
Gravitational Lens |
Constructions of a simple gravitational lens demonstration. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 34(9), 555] |
8C20.42 |
Gravitational Lens |
Henry Cavendish and Johann von Soldner calculated that light would be deflected by gravitational bodies long before Einstein. See [http://scitation.aip.org/ajp/ American Journal of Physics - AJP 56(5), 413] |
8C20.42 |
Gravitational Lens |
How would the outer world look from an observer located in a gravitational lens. See [http://scitation.aip.org/ajp/ American Journal of Physics - AJP 55(4), 336] |
8C20.42 |
Gravitational Lens |
The principle of equivalence and the deflection of light by the Sun. See [http://scitation.aip.org/ajp/ American Journal of Physics - AJP 46(8), 801] |
8C20.42 |
Gravitational Lens |
The prediction and test of Einstein's 1916 prediction. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 38(9), 524] |
8C20.42 |
Gravitational Lens |
Additional comments on TPT 38(9), 524. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 39(4), 198] |
8C20.43 |
Gravitational Lens |
The black hole as a gravitational lens. See [http://scitation.aip.org/ajp/ American Journal of Physics - AJP 55(5), 428] |
8C20.45 |
Galactic Lens |
A machined Plexiglas lens bends light like an extended mass distribution. See [http://scitation.aip.org/ajp/ American Journal of Physics - AJP 51(9),860] |
8C20.50 |
Gravitational Waves |
Icebreaker activities to use when introducing the subject of gravitational waves. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 44(7), 416] |
8C20.50 |
Gravitational Waves |
About the new generation of gravitational wave detectors. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 44(7), 420] |
8C20.50 |
Gravitational Waves |
On the detection of gravitational waves. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 22(5), 282] |
8C20.60 |
Quasars |
The use of quasars in teaching introductory special relativity. See [http://scitation.aip.org/ajp/ American Journal of Physics - AJP 55(3), 214] |
8C20.60 |
Quasars |
Quasars and superluminal velocities in astronomy. See [http://scitation.aip.org/tpt/ The Physics Teacher - TPT 34(8), 496] |
8C20.70 |
Cosmic Strings |
|
8C20.80 |
Dark Matter |
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[:Demonstrations:Demonstrations]
[:Instructional:Home]