The Evolution of Earth's Atmosphere Part 2 of 4

John J. McCarthy Observatory, New Milford, CT. Monthly astronomy lecture done by Bob Lambert. Date of this lecture is October 2008.  Video starts with a discussion of where the first atmosphere came from.  Then progresses into how long the primary atmosphere lasted and what happened next.  Presenter shows pictures of early constant eruption of volcanoes and bombardments of comets.  Further discusses the CO2 cycle, the e
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Ancient Olympic Boxing - An Introduction
A slickly-produced video about ancient Greek boxing, but no demonstrations--just (fancy) text on screen. Boxing was first accepted as an Olympic sport in 688 BC, being called Pygme or Pygmachia. Participants trained on punching bags (called a korykos). Fighters wore leather straps (called himantes) over their hands, wrists, and sometimes breast, to protect them from injury. The straps left their fingers free. Legend had it that the Spartans were the first to box as a way to prepare for sword and
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Theories of Democracy
This video is accompanied by text. "In his 1863 Gettysburg Address, Abraham Lincoln defined democracy as "government of the people, by the people, for the people." These words have come to mean different things to different people and have sparked debate over whether the U.S. government really responds to the will of its citizens.
Four theories of democracy have taken shape over time, each addressing the questions of who holds power and influences public policy. The Traditional Theory of D

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Dissecting a PC
This video  demonstrates and discusses the parts inside the case of your computer.  It shows how to unplug everything-the power source as well as anything else plugged into it-then to take off the case.  Inside is the CPU, Video Card, Power Supply, Hard Drive, Optical Drive, RAM, Battery and Motherboard.  (7:51)
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Word Association and synonyms
In this lesson shows ways to expand your word power using words that are associated or that mean something similar. The presenter talks about words that mean similar things and how they can help you to enlarge your vocabulary.
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Utopian Movement in the USA
This video is accompanies by text. "A number of cooperative communities were launched in the 1800s as experiments in alternative social organizations and Christian living according to scriptural interpretations. This was not a new phenomenon in the New World. The Jamestown colonists, the Puritans, the Quakers, and others had all made the difficult and dangerous voyage across the sea in order to live by their own beliefs.  
Reformers in the aftermath of the Second Great Awakening sought

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Rules of Exponents
This video is about exponents. It tells us about how and what the rules effect and cause when a number has an exponent. Exponent in other words is "# to the power of ..." Power of any number. This five minute video goes slowly, but the teacher needs to have examples and a handout to help reinforce these examples
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Possessive Nouns For Early Elementary Students
A slow paced power point presentation good for lower elementary students explaining possessive nouns.  A possessive noun indicates the nouns is showing ownership.  Examples are shown using images of students in a classroom to show possession.

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Inside Earthquakes
Witness the destructive power of earthquakes, from home videos taken during a tremor.  Video goes inside the Earth to show how an earthquake starts.  Earth is covered by plates, when the plates are moved by the heat of the inner Earth, they grind against each other along lines called faults.  When the plates motion is blocked stress builds up, finally the fault gives way.  The released energy moves through the Earth called seismic waves.  Sei
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Magic School Bus Gets Energized
Join Ms. Frizzle and the class as they learn more about the different sources of energy. The class plugs their Double-Trouble Wheel of Wonder, the hottest ride at the school carnival, when their electricity fails. No electricity, no ride! Carlos' younger brother Mikey helps them discover that there are other sources of energy besides electricity. Using wind, water, the heat of the sun, falling rocks, and their own muscle power, the class gets the Ferris wheel running. Run time 22 minutes.

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Solar Energy Concentrator
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Includes links to directions for constructing a simple solar concentrator.

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Wheels of Progress-Rock Island Railroad

This film was produced by the Chicago, Rock Island & Pacific (Rock Island) Railroad in 1950 to educate customers how their railroad operates and what services are offered as well as new innovations the railroad has incorporated. This film is a great capture of railroading at its finest with both steam and early diesel locomotive power shown.  The Rock Island Railroad... Home of some of th
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The Evolution of Earth's Atmosphere Part 1 of 4

John J. McCarthy Observatory, New Milford, CT. Monthly astronomy lecture done by Bob Lambert. Date of lecture is October 2008.   Lecture starts with explanation that we are now living in the Earth’s Secondary Atmosphere.  There was a First Atmosphere called the primary atmosphere and it did not resemble today’s atmosphere at all.  The evolution of our atmosphere is a continuum of an evolution, the atmosphere continues to chang
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Lightning: Nature Strikes Back - 1/7
It is five times hotter than the sun and turns sand to glass in an instant. It can shoot 80 kilometres up above storm clouds. And it may even have provided the original spark that created life itself. This pacy, stylish documentary reveals the full power of lightning, why it is so dangerous, and what scientists are doing to protect us.
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Lightning: Nature Strikes Back - 3/7
It is five times hotter than the sun and turns sand to glass in an instant. It can shoot 80 kilometres up above storm clouds. And it may even have provided the original spark that created life itself. This pacy, stylish documentary reveals the full power of lightning, why it is so dangerous, and what scientists are doing to protect us.
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Lightning: Nature Strikes Back - 4/7
It is five times hotter than the sun and turns sand to glass in an instant. It can shoot 80 kilometres up above storm clouds. And it may even have provided the original spark that created life itself. This pacy, stylish documentary reveals the full power of lightning, why it is so dangerous, and what scientists are doing to protect us.
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Lightning: Nature Strikes Back - 5/7
It is five times hotter than the sun and turns sand to glass in an instant. It can shoot 80 kilometres up above storm clouds. And it may even have provided the original spark that created life itself. This pacy, stylish documentary reveals the full power of lightning, why it is so dangerous, and what scientists are doing to protect us.
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Lightning: Nature Strikes Back - 6/7
It is five times hotter than the sun and turns sand to glass in an instant. It can shoot 80 kilometres up above storm clouds. And it may even have provided the original spark that created life itself. This pacy, stylish documentary reveals the full power of lightning, why it is so dangerous, and what scientists are doing to protect us.
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Lightning: Nature Strikes Back - 7/7
It is five times hotter than the sun and turns sand to glass in an instant. It can shoot 80 kilometres up above storm clouds. And it may even have provided the original spark that created life itself. This pacy, stylish documentary reveals the full power of lightning, why it is so dangerous, and what scientists are doing to protect us.
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How Changes in Earth's Magnetic Field and Ionosphere Affect Us - Part 4
Part 4 in a discussion on How do changes in Earth's magnetic field and ionosphere affect us? Anya Strømme – EISCAT/SRI International. She’s working with very high power radar to study the aurora borealis which are better observed at higher latitudes. She’s studying particles coming into the atmosphere, heating it, generating currents—this is where our satellites fly…this impacts tv reception, GPS, cell phones in a much more dramatic way than we can imagine. Run time 03:16.
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