|
|
|
|
|
|
Would you want to live in a world without electricity? No computer. No lights. No video games. Electricity is a form of energy. People don't actually make energy. They just take one form of it and change it into another. This video tells you what it take to make electricity and how it gets to you. This video also addresses the transfer of energy from one form to another. (11:50)
Found by begamatt in Transfer of Energy
June 3, 2010 at 09:40 PM
Ages: 5 - 10
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 6273 |
|
|
| |
|
|
|
|
|
 |
Where does gas and electricity come from? This short film explains how National Grid takes the energy from its source, delivering it to homes and streets around the country. (03:53)
Found by teresahopson in Fossil Fuels
March 18, 2012 at 07:18 AM
Ages: 8 - 14
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 5529 |
|
|
| |
|
|
|
|
|
|
We all know the words around electricity -- “charge,” “positive,”
“battery” and more. But where do they come from and what do they really mean? Let the history of these words illuminate the physics of electric phenomena. (06:56)
Found by Rockefellerteacher in Electricity
July 23, 2012 at 08:54 AM
Ages: 12 - 18
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 5473 |
|
|
| |
|
|
|
|
|
|
One mile long and 600 feet high, the Three Gorges Dam on the Yangtze River is a project of epic proportions — and controversy. The dam, completed in 2008, created a vast reservoir extending 370 miles, about the distance from Los Angeles to San Francisco. It brings drinking water to northern China and generates as much electricity as 18 coal-fired power plants. But it has also displaced some two million people and caused widespread flooding, destroying rural villages and cultural treasures. Subtitled 08:02 run time
Found by tinag1974 in China
June 9, 2010 at 02:05 PM
Ages: 12 - 18
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 5342 |
|
|
| |
|
|
|
|
|
|
At age 14, in poverty and famine, a Malawian boy built a windmill to power his family's home. Now at 22, William Kamkwamba, who speaks at TED, here, for the second time, shares in his own words the moving tale of invention that changed his life.
William Kamkwamba, from Malawi, is a born inventor. When he was 14, he built an electricity-producing windmill from spare parts and scrap, working from rough plans he found in a library book called Using Energy and modifying them to fit his needs. The windmill he built powers four lights and two radios in his family home. After reading about Kamkwamba on Mike McKay's blog Hactivate (which picked up the story from a local Malawi newspaper), TEDGlobal
Conference Director Emeka Okafor spent several weeks tracking him down at his home in Masitala Village, Wimbe, and invited him to attend TEDGlobal on a fellowship. Onstage, Kamkwamba talked about his invention and shared his dreams: to build a larger windmill to help with irrigation for his entire village, and to go back to school. Following Kamkwamba's moving talk, there was an outpouring of support for him and his promising work. Members of the TED community got together to help him improve his power system (by incorporating solar energy), and further his education through school and mentorships. Subsequent projects have included clean water, malaria prevention, solar power and lighting for the six homes in his family compound; a deep-water well with a solar-powered pump for clean water; and a drip irrigation system. Kamkwamba himself returned to school, and is now attending the African Leadership Academy, a new pan-African prep school outside Johannesburg, South Africa.
Kamkwamba's story is documented in his autobiography, The Boy Who Harnessed the Wind: Creating Currents of Electricity and Hope. A short documentary about Kamkwamba, called Moving Windmills, won several awards last year; Kamkwamba and friends are now working on a full-length film. You can read the ongoing details on his blog (which he keeps with help from his mentor), and support his work and other young inventors at MovingWindmills.org.
Found by PositiveLIFEcycle in At Home
February 11, 2011 at 09:21 PM
Ages: 8 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 5277 |
|
|
| |
|
|
|
|
|
|
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.
Found by Barb in Batteries
December 6, 2009 at 07:05 PM
Ages: 10 - 16
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 4864 |
|
|
| |
|
|
|
|
|
|
Provocative questions begin the quest of Beyond The Mechanical Universe. This introductory preview enters the world of Electricity and Magnetism, goes on to 20th-century discoveries of Relativity and Quantum mechanics. The brilliant ideas of Faraday, Ampere, Maxwell, Einstein, Schrödinger, Heisenberg add to The Mechanical Universe of Newton.
Found by laneyk in History of the Science of Physics
March 22, 2010 at 09:43 PM
Ages: 12 - 18
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 4561 |
|
|
| |
|
|
|
|
|
|
This video demonstrates how solar energy can be focused with a curved mirror. Once focused this energy can be used to cook food, sterilize water even create electricity. Includes an explanation of energy, power, joules, and watts. Examples of radiant, heat, chemical and kinetic energy are given. (06:10)
Found by Barb in Solutions to Global Warming
December 6, 2009 at 07:34 PM
Ages: 9 - 16
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 4401 |
|
|
| |
|
|
|
|
|
|
As clouds get bigger with the continuous rising of air, they interact with particles of ice and dirt to create a buildup of static electricity. Learn about the interaction of electrical charges in a cloud with charges on the ground with help from a meteorologist. Video is short and of good quality and is appropriate for elementary level students of grades three through five. (01:59)
Found by Barb in Storms
August 12, 2009 at 05:54 PM
Ages: 7 - 12
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 4268 |
|
|
| |
|
|
|
|
|
|
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
Found by begamatt in New Alternative Resources
April 5, 2010 at 06:02 PM
Ages: 8 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 4074 |
|
|
| |
|
|
My Effort
From YouTube, produced by David R. Parrish
|
|
|
|
|
|
This student-made project contains high quality images along with emotional music. Statements are written on the screen throughout the video and include the following: This is a small effort... to open your eyes... to help you see... to understand that people around you... need from you... that people around you... are there for you... whenever you need them... they can help you whenever they need you... you must help them... in this BIG world that we are not alone... because we all need each other. You too can make a difference... it doesn't take much, this decision... is yours and yours alone. It is for YOU... for US... the world is one... and WE share it. Plant trees. Save water. Stop pollution. Give charity. Save electricity. Recycle. Start caring. HELP. The world is in your hands. (03:49)
Found by begamatt in Earth Day Songs
March 23, 2011 at 04:00 PM
Ages: 8 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3681 |
|
|
| |
|
|
Conductor
From YouTube, produced by T. Hickey
|
|
|
|
|
|
This video defines a conductor as a person that guides or leads others, such as in transportation and music. The scientific defintion, anything that allows heat or electricity to pass through it, is provided and explained through examples. ( 1:03)
Found by michellehoggard in One-Minute Video Dictionary - Series
November 9, 2011 at 06:54 PM
Ages: 8 - 12
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3604 |
|
|
| |
|
|
|
|
|
|
See how wind turbines generate clean electricity from the power of the wind. Highlighted are the various parts and mechanisms of a modern wind turbine. (02:16)
Found by begamatt in Wind Power
November 20, 2011 at 08:07 PM
Ages: 8 - 13
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3472 |
|
|
| |
|
|
|
|
|
|
In this interactive activity adapted from NOVA Online, learn how a typical photovoltaic cell converts solar energy into electricity. Explore the components of a photovoltaic cell, including the silicon layers, metal backing, anti-reflective coating, and metal conductor strips. Using animations, investigate why the silicon layers are doped with phosphorous and boron, and how an electric field is used to generate electricity from sunlight. No audio.
Found by begamatt in Transfer of Energy
August 12, 2010 at 08:29 PM
Ages: 13 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3464 |
|
|
| |
|
|
|
|
|
|
This is a video about alternative energy sources such as solar energy, wind energy, and hydro power and how these sources can be converted to electricity. (3:38)
Found by Anonymous in New Alternative Resources
November 28, 2010 at 05:25 PM
Ages: 8 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3462 |
|
|
| |
|
|
|
|
|
|
The energy in waves comes from the movement of waves going past a point and creating rotational movement. Discover how rotational movement caused by waves can generate electricity with information from a science teacher in this video.
Found by grazianione in Electric Potential Energy
April 12, 2010 at 12:13 PM
Ages: 12 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3396 |
|
|
| |
|
|
|
|
|
|
How do we make sounds that are both high and low? How do vibrations make sounds? How does sound make things look better? What is "Bernoullis" principle? How does Bernoilli's principle keep airplanes in the air? How do airplanes stay in the air? What is a polymer and how does it work? What is static electricity? How do my eyes play tricks on me? What are forces and how can I multiply them? What is "Newton's First Law"? What is "centripetal force"? What is "centrifugal force"? What is the difference between a solid, liquid and a gas? Learn the answer to all these questions!
Found by tinag1974 in Sound Experiments
June 7, 2010 at 01:49 PM
Ages: 5 - 12
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3340 |
|
|
| |
|
|
|
|
|
|
A focus on energy conservation brings the sciences to life in an art class at Redwood Middle School, in Napa, California. Sharon Campbell remembers sleeping out under the stars and watching Sputnik go overhead. Back then, she wanted to be the first astronaut. Instead, she became an educator. She has been teaching art now for twenty-one years at Redwood Middle School, in Napa, California, but she visits space on a regular basis, via a very special classroom.It began when Campbell won a grant from British Petroleum and went to Los Angeles for a workshop on energy conservation. She visited Southern California Edison, where she watched incoming energy switch throughout the state."It was during the heat wave, and I sat and watched California run out of electricity," she recalls. It was there she learned that power is a finite resource, and that if every homeowner installed just one energy-efficient light bulb, it would be enough to avoid a blackout for an entire year. "And that’s when the big bulb went off," she says.Campbell and her husband spent $14,000 of their own money to turn her classroom into the RMS Energy Star. Every summer and every Christmas, when her daughter Jacqueline comes to town, the family repaints the classroom. "I want it to be perfect, because my students deserve it," Campbell says. "They deserve to be in a beautiful place, to know that I want them to be here, and that the school values them." (05:54)
Found by Mrs Jefferies in Art and the Environment
August 22, 2011 at 10:50 PM
Ages: 10 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3232 |
|
|
| |
|
|
|
|
|
|
By the 1860s all the pieces of the electricity and magnetism puzzle were in place, except one. The last piece, discovered by James Clerk Maxwell and called (unfortunately) the displacement current was just what was needed to produce electromagnetic waves called (among other things) light.
Found by laneyk in Electromagnets
March 22, 2010 at 10:29 PM
Ages: 14 - 18
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3211 |
|
|
| |
|
|
|
|
|
|
This video is made by the Energy Conservation Video for kids by Horizon Utilities Corporation. In this informative video students will learn ways to conserve energy by not plugging in too many things in one outlet. It can be dangerous too! Students will learn to use power bar strips as a conservation method. A phantom bad guy shows how we can waste power/energy by leaving things plugged in. Chargers use electricity even when device is turned off. Students will enjoy this fun, animated video as they learn how they can make an energy difference in their homes. (3:18)
Found by porter1526 in Energy Conservation at Home
September 26, 2011 at 03:47 PM
Ages: 6 - 12
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3206 |
|
|
| |
|
|
|
|
|
|
In a world of electric charges and currents, field, forces and voltages, what really matters? When is electricity dangerous or benign, spectacular or useful? The electric potential and its gradient; the potentials of atoms and metals; electric energy, and why sparks jump.
Found by laneyk in Electric Potential Energy
March 22, 2010 at 09:54 PM
Ages: 14 - 18
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3080 |
|
|
| |
|
|
|
|
|
|
Born in Boston in 1706, Benjamin Franklin organized the United States’ first lending library and volunteer fire department. His scientific pursuits included investigations into electricity, mathematics and mapmaking. He helped draft the Declaration of Independence and the U.S Constitution, and negotiated the 1783 Treaty of Paris, which marked the end of the Revolutionary War. In this Biography Channel full length video, learn more about the life of the legendary, Benjamin Franklin. (47:09)
Found by CourtneyMorrison in Franklin, Benjamin
November 29, 2012 at 12:33 AM
Ages: 13 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3075 |
|
|
| |
|
|
Neon: Element
From periodicvideos.com, produced by University of Nottingham
|
|
|
|
|
|
This two minute video is an overview of what neon does and what it can do. Neon is a inert gas and does not form many compounds and is mainlyused for bright lights as neon atoms are excited from electricity.
Found by freealan in Helium
July 18, 2011 at 11:12 AM
Ages: 9 - 18
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3034 |
|
|
| |
|
|
|
|
|
|
This animation presents the characteristics of wind power as a source of clean energy. The force of moving air generates electricity, by rotating blades around a rotor. The motion of the rotor turns a driveshaft that drives an electric generator.The viewer may examine how a wind turbine works by pausing and clicking on its components. They include a gear box, rotor, high-speed shaft, generator, wind vane, yaw drive, yaw motor, anemometer, controller, tower, and brake.Wind power is a feasible source of electricity in a variety of settings, and wind farms can operate on or off the electrical grid.
Found by Mrs Jefferies in Wind Power
May 27, 2012 at 04:36 PM
Ages: 8 - 18
License: Public Domain
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3008 |
|
|
| |
|
|
|
|
|
|
This video shows various ways to harness the power of water, including ocean waves, to make electricity. (04:47)
Found by freealan in Hydropower
September 5, 2011 at 04:21 PM
Ages: 12 - 18
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 2980 |
|
|
| |
|
|