Ku Klux Klan- A Secret History [8/9]
(Caution: Scenes of violence and insensitive racial language)THE 20TH CENTURY(TM) ventures back to the days of the Reconstruction South and through the landmarks in Klan history to tell the complete story of the most famous hate group in America. Discover how the six original Klansmen came together and chose their name. See how the release of America's first blockbuster movie spurred a resurgence in the KKK and how they expanded their target to include Jews, Catholics and immigrants as well as b
Democracy: An Overview
This 10 minute video is an overview of what democracy is - Shared Respect & Shared Power - and what makes it work. This 60 year old educational film deals with the same issues and responsibilities that exist today. Signs of Democracy is a good lesson to use as a starting point in this film and for additional discussions.
Crows Hanging Out
This movie shows how ten thousands of crow descent upon small towns in America. This movie has great information about crows such as how they are beneficial to humans. Run time 01:55.
Eastern Orthodox Church around the World
Eastern Orthodox Church around the World - ORTHODOXY AROUND THE WORLD. THE ANCIENT ORTHODOX CHURCH PRESERVED UP TO MODERN TIMES. ORTHODOX CHURCHES IN BETHLEHEM, JERUSALEM, GALILEE, MOUNT SINAI, CAPPADOCIA, ESTONIA, CONGO, KENYA, CAIRO, JAPAN, CHINA, KYRGISTAN, KOREA, GREECE, MOUNT ATHOS, ROMANIA, SWEDEN, GERMANY, BULGARIA, FRANCE, ENGLAND, ITALY, CZECHOSLOVAKIA, NORWAY, TRANSYLVANIA, THE UNITED STATES, CANADA, ANTARCTICA, POLAND, SOUTH AMERICA, MOLDOVA, AUSTRALIA, SERBIA, GEORGIA, RUSSIA, AND MO
While on the hunt for the Ivory-billed Woodpecker in Arkansas, Jorge
Ribas encounters all kinds of wildlife, including a particularly
venomous critter - the Cottonmouth. Video ends with some facts about the cottonmouth. For example: "The cottonmouth, also called a water moccasin, is the only poisonous water snake in North America." Run time 2:18
Living at the base of an active volcano may not be for everyone. Yet some people find comfort in the raw beauty and power that the mountain holds.
Witness the awesome destructive power of earthquakes, from home videos taken during a tremor, to inside the earth for the birth of a quake. Suitable for fourth-grade to high school. (02:22)
Algae Biofuels As America looks for new alternative fuel sources, biodiesel from algae offers a new and innovative solution. America uses 180 billion gallons of oil for transportation systems and it is starting to harm the Earth. Wind, solar, and hydrogen energy forms are impractical due to size, scale, and cost of locations. This video discusses how the best alternative fuel is bio-fuel. Ethanol’s from corn and crop based biodiesel have p
As America looks for new alternative fuel sources, biodiesel from algae offers a new and innovative solution. America uses 180 billion gallons of oil for transportation systems and it is starting to harm the Earth. Wind, solar, and hydrogen energy forms are impractical due to size, scale, and cost of locations. This video discusses how the best alternative fuel is bio-fuel. Ethanol’s from corn and crop based biodiesel have p
Turning Trash Into Energy
Ever wonder how New York City pays the electric bill? Find out how the Big Apple turns the trucks filled with trash from the St. Patrick's Day Parade into energy for the city! The power plant shown in this video burns 3 thousand tons of garbage a day and turns it into electricity. Follow the trash as it is transformed into energy. Run time 03:09
Solar Power 101 - How Does Sunlight Turn into Electricity Video is short but gives a thorough explanation of solar photovoltaic systems. How do they work? Sunlight is captured and converted from light to electricity. The electricity that is made from the convertor is DC (direct current) and needs to be changed to AC (alternating current) by an inverter. Batteries are attached to the inverter to provide electricity to the house when there is no sun. The inverter provides the electricity
Video is short but gives a thorough explanation of solar photovoltaic systems. How do they work? Sunlight is captured and converted from light to electricity. The electricity that is made from the convertor is DC (direct current) and needs to be changed to AC (alternating current) by an inverter. Batteries are attached to the inverter to provide electricity to the house when there is no sun. The inverter provides the electricity
Solar Energy Simplified
Solar power can be complicated, but Solar Decathlon director Richard
King gives Discovery News the lowdown on the three ways anyone can tap the sun's energy. Run time 2:12
Energy from the Sun
With some very simple equipment and knowledge of basic math it is possible to estimate the power output of the sun. This video describes the process and explains the calculations. The video leaves a challenge: use the results to calculate the total energy arriving at the earth each second and using E=mc^2, calculate the mass loss of the sun. Do NOT look directly at the Sun. (10:27)
How Wind Power is Converted into Useful Electrical Energy
This video provides a brief tutorial - about harnessing wind energy. The high quality animation is supplemented with text - which explains how wind power - is converted to electrical energy, via a generator. Computer animation set to music with labels provided on screen. (No narration) Run time 02:10.
Iowa Wind Power
A school district in Iowa is using wind power to power help power the district. You learn how these wind turbines help create energy and help save the environment at the same time. Run time 02:29.
New Wind Turbine Design Good for Rural, Urban Environment
Wind power is one of the fastest growing forms of alternative energy in the world. Because the propellers are so large the windmills need to be in the countryside. But a new form of wind power is now designed to work in an urban environment it is a propeller free wind mill, called a wind spire. It is modeled after an ancient Egyptian wheat grinder. The small wind mill can supply 25 – 30 percent of power in your house they also have a large
National Agriculture Report. The wind - energy to capture. Looking for ways to feed the world's appetite for power, yet preserve our natural resources - the answer may be blowing in the wind. Run time 02:16.
How Wind Power Is Created
Wind power is created by windmills, which use generators to
produce electricity that is gathered by wires. Find out why some
windmills produce more energy than others with information from a
science teacher in this video.
Energy from the Wind
This ten-minute video demonstrates how to construct a model windmill and then calculate its power output.
How To Make a Battery From a Potato
Following on from Edison's first lightblub moment back in 1879, the OU's Stephen Serjeant experiments with an alternative power source - the humble potato. Video experiment explains the process and why you need more than one potato. Grades 5-12. Includes closed captioning. 2:31 min.
Using only vinegar and a few simple materials it is possible to construct a working battery. This video explains how to construct, and use, a battery like this to power a calculator. A good science project as part of an introductory electricity course. This project can be used as a science fair project.