SKYNET!!!! Saturday Mar-11-2017 9PM CT – 10:30PM CT
Topic: “Michelson and Morley Experiment” and “Tour of the Constellation Leo”
Net Control: Tom KE5ICX & Mike KG5P
Afterglow Movie 10:30PM: “Planet of the Apes” (1968)
2-Meter Repeater W5FC: 146.880MHz, PL 110.9, –
Echolink: W5FC-R, node 37247.
Video Stream: http://www.ustream.tv/channel/skynet2
& Facebook “DARC Skynet Astronomy Net”
Audio Stream: http://pokeys.doomdns.com:8000
Yahoo Groups: http://groups.yahoo.com/group/skynet
Saturday’s DARC SkyNet is at 9PM CT.
Discussion topic of the evening.
Mike KG5P will be discussing the Michaelson and Morley Experiment.
A scientific experiment to find the presence and properties of as substance called aether, a substance believed to fill empty space. The experiment was done by Albert Michaelson and Edward Morley in 1887.
Michelson and Morley Experiment Schematic
Michelson and Morley Experiment (Photo)
Fabry-Perot Interference Fringes
What can you see in the sky over the next couple of weeks?
Photo Full Moon
Full Moon Close-up
A featured constellation or object(s) or topic.
Skymap Leo the Lion Constellation
Photo #1 Barred Spiral Galaxy (M95/NGÇ 3351)
Photo #2 Intermediate Spiral Galaxy (M96/NGC 3368)
Photo #3 Elliptical Galaxy (M105/NGC 3379)
Photo #4 Leo 1 Group
Photo #5 Elliptical Galaxy (NGC 3384)
Photo #6 Field Barred Spiral Galaxy (NGC 2903)
Recent Astronomical discoveries
Ancient Stardust Sheds Light on the First Stars
Hubble Dates Black Hole’s Last Big Meal
Space Exploration & Space History
Center of Occator Crater on Ceres: https://www.jpl.nasa.gov/…/ima…/largesize/PIA20355_hires.jpg
Saturn’s Moon Pan: https://www.nasa.gov/…/files/thum…/image/3_n1867604488_1.jpg
Visible satellite passages over the next couple of days.
North Korean Satellite
One thought on “Skynet 3-11-17 Michelson & Morley Experiment / Tour of the Constellation Leo 9PM CT”
Concerning the history of the experiment, with great interest we read your entry and the Commentary ‘How gravitational waves went from a whisper to a shout’, published in Physics Today August 2016, volume 69, number 8, pages 10-11. We are thinking that one may wish to emphasize that the detection was accomplished by using one of the most groundbreaking instruments in physics: The Michelson Interferometer, developed by the first American Nobel Prize winner Albert Abraham Michelson. The interferometer is so extraordinary powerful for detecting gravitational waves–LIGO’s interferometers are designed to measure a distance 1/10,000th the width of a proton! Interferometers were actually invented in the late 19th century by A.A. Michelson. The Michelson Interferometer was used in 1881 in the so-called “Potsdam Michelson Experiment”, which set out to prove or disprove the existence of a “Luminiferous Aether”–a substance at the time thought to permeate the Universe. All modern interferometers have evolved from this first one since it demonstrated how the properties of light can be used to make the tiniest of measurements. The invention of lasers has enabled interferometers to make the smallest conceivable measurements, like those required by LIGO. Interestingly, the basic structure of LIGO’s interferometers differs little from the interferometer that Michelson designed over 135 years ago.
We would like to make the readers of this article aware of some new insights into the history of the Michelson Interferometer as published recently as contained in the papers available at
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