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This five minute video is about color, Additive mixture is two lights that are shining on the same point and you get a different color shadow. When red, green, and blue are all on the same point, the
eyes interpret it as white. The Sun are all the colors and when there are no colors, it is black. This show explains the investigating color and how colored shadows and trick your mind with colors.
Found by freealan in Elements of Art
July 22, 2011 at 03:02 PM
Ages: 7 - 18
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Snell's Law: Used to determine the direction of light rays through refractive media with varying indices of refraction. The indices of refraction of the media are used to represent the factor by which a light ray's speed decreases when traveling through a refractive medium, such as glass or water, as opposed to its velocity in a vacuum. (02:09)
Found by begamatt in Refraction
March 26, 2011 at 11:02 PM
Ages: 13 - 18
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Light is a form of electromagnetic radiation, which always travels
at a speed of 186,000 miles per second in a vacuum. Discover how light travels slower in transparent media with information from a science teacher in this video.
Found by grazianione in Speed of Light
April 13, 2010 at 02:49 PM
Ages: 12 - 18
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Because Enlightenment thought led to much of the passion that the founders’ showed for individual freedoms, the following article at iep dot utm is of help in portraying a picture of these passions and emotions, and how Americans’ compare to other countries, such as with the British and French Enlightenment.
Found by American history in The Founding Fathers
April 27, 2015 at 10:32 AM
Ages: 14 - 18
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Check out this and other cool science experiments at http://www.stevespanglerscience.com/experiments/ Steve and Julie show Mark the secret to light sticks an...
Found by ronna_37 in Chemical Equations and Reactions
February 22, 2010 at 08:49 PM
Ages: 10 - 18
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This interactive activity adapted from the National Park Service describes how humans impact the environment by creating light pollution such as light trespass, glare, and sky glow. Learn how unnecessary light wastes energy, obscures the view of the night sky, and affects wildlife. In addition, explore possible solutions to save energy and minimize light pollution.
Found by Mrs Jefferies in Properties of Light
May 10, 2012 at 10:48 PM
Ages: 3 - 18
License: Public Domain
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March 21, 2012 — Multicolored curtains of light fill the skies over northern Norway in a new time-lapse video made from aurora images taken this month. Filmmakers Claus and Anneliese Possberg used about 600 frames to create the video. (Music by Justin Durban, www.justindurban.com) (04:26) (2012; Video produced by Dr. Claus & Anneliese Possberg
Found by teresahopson in Solar Storms
March 21, 2012 at 07:49 PM
Ages: 7 - 18
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In order to understand how light travels, it's important to think
of it as a wave or a particle. Learn about the properties of light, such
as reflection and refraction, with information from a science teacher
in this video.
Found by grazianione in Speed of Light
April 12, 2010 at 12:36 PM
Ages: 12 - 18
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The electric light bulb revolutionized the world. Many people tried to invent one, but Thomas Edison succeeded. This video is about how he did it. (01:57)
Found by freealan in Edison, Thomas
January 14, 2011 at 09:23 PM
Ages: 10 - 18
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There are about 20 videos of science experiments on this page. This video shows how regular fluorescent lightbulbs can glow when brought close to a plasma ball found in many novelty shops. The bulbs glow because the electricity in the plasma globe is sent from the center of the ball at high frequencies, similar to radio waves. The gas inside of fluorescent bulbs react the the high frequency electricity and they begin to glow! All the videos are done interview style and so some background research is needed before they are shown.
Found by freealan in Experiments for Children
November 7, 2010 at 10:56 AM
Ages: 8 - 15
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Because it's impossible to travel faster than the speed of light,
mankind is eternally stranded inside the confines of our solar system. This video explains why a spacecraft would not be able to accelerate past the speed of light. (1:13)
Found by jpalmertree in Speed of Light
February 10, 2012 at 11:44 AM
Ages: 12 - 18
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Edith Widder has been exploring the deep sea for thirty years. When she descended for the first time, she turned off the lights of her submersible hoping to see marine organisms that make light--bioluminescent animals. Widder says she wasn't prepared for the light show she encountered and has been building tools to document bioluminescence ever since. (3:46)
Found by Mrs Jefferies in Animal Adaptations
December 27, 2011 at 09:32 AM
Ages: 9 - 18
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We are so used to some things that we stopped wondering about them. Like light. What is light? Some kind of wavy thing, right? Kind of. (04:38)
Found by teresahopson in Properties of Light
May 31, 2019 at 05:43 PM
Ages: 12 - 18
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The Northern Lights shoot green shafts across a night sky in Norway. Great HD clip from 'Wonders of the Solar System'. (02:10)
Found by teresahopson in Tours of Our Solar System
November 28, 2011 at 09:01 PM
Ages: 10 - 18
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In this interactive activity adapted from NASA, learn about the properties of light and how light behaves when it encounters matter. Animations and diagrams illustrate how light is absorbed, transmitted, reflected, refracted, scattered, or diffracted. Learn how the composition and shape of the object, as well as the characteristics of the light, affect how light behaves. In addition, learn how observing these behaviors of light can provide information about extraterrestrial objects, such as the topography of a planet or the spectral signature of a galaxy.
Found by Mrs Jefferies in Properties of Light
May 10, 2012 at 10:59 PM
Ages: 10 - 18
License: Public Domain
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In this clip a gardener explains which plants thrive indoors in low light from her kitchen. Plants that do well in containers by a windows in a house include pathos, lucky bamboo, colias and Christmas cactus.
Found by grazianione in Flowers and Plants
March 1, 2010 at 10:19 AM
Ages: 10 - 18
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Use a telescope far from city lights and light pollution to see stars, but view meteors with the naked eye. Get tips on viewing meteor showers and observing starry skies with a telescope from an astronomer. (01:26)
Found by teresahopson in Telescopes
January 18, 2011 at 06:55 PM
Ages: 10 - 18
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Explore how to use a light microscope with the Amoeba Sisters! Includes microscope parts, how to use, and some helpful tips! Additionally, this video introduces a few types of light microscopes as well as electron microscopes. (09:21)
Found by andrewvanzyl in Microscopes
May 17, 2019 at 06:17 AM
Ages: 12 - 18
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One of the most counter-intuitive facts of our universe is that you can’t go faster than the speed of light. From this single observation arise all of the min...ll of the mind-bending behaviors of special relativity. But why is this so? In this in-depth video, Fermilab’s Dr. Don Lincoln explains the real reason that you can’t go faster than the speed of light. It will blow your mind. (08:36)
Found by teresahopson in Speed of Light
January 28, 2019 at 07:05 PM
Ages: 15 - 18
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It takes light a zippy 8 minutes to reach Earth from the surface of the Sun. But how long does it take that same light to travel from the Sun’s core to its surface? Oddly enough, the answer is many thousands of years. Sten Odenwald explains why by illustrating the random walk problem. The animation is by TOTEM Studio.(04:36)
Found by teresahopson in The Sun - An Overview
January 12, 2020 at 10:14 AM
Ages: 14 - 18
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Hanukkah is one of the most joyous of Jewish holidays. Learn more about the traditions and history behind the Festival of Lights known as Hanukkah (also spelled Chanukah). The celebration lasts for eight nights and days each year around the same time as Christmas. (02:41)
Found by teresahopson in Hanukkah
December 18, 2019 at 06:20 PM
Ages: 11 - 18
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Happy Hanukkah everyone! In honor of the season starting, enjoy Light the Lights, a story about celebrating Hanukkah and Christmas. (04:12)
Found by teresahopson in Hanukkah
December 15, 2022 at 06:22 AM
Ages: 5 - 12
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One night in Sept. 2021, a magnitude 7.0 earthquake rocked southwest Mexico and ricocheted across social media. Online, people posted about strange flashes of light in the sky at the time of the quake. What exactly was going on? (04:41)
Found by teresahopson in Effects of Earthquakes
September 29, 2021 at 02:07 PM
Ages: 10 - 18
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An aurora sometimes referred to as polar lights, northern lights (aurora borealis) or southern lights (aurora australis), is a natural anomaly - light display in the Earth's sky, predominantly seen in the high-latitude regions (around the Arctic and Antarctic). (10:16)
Found by teresahopson in Auroras
November 11, 2021 at 02:20 PM
Ages: 9 - 18
License: Undetermined
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The things we spend the most time doing used to provide us benefits when our ancestors hunting or gather for food outside in sunlight. We spend our time working inside with some artificial lights coupled with prolonged sitting period. We should not only work outside in sunlight to get Vitamin D but also standing while working to slow down the aging process. (08:54)
Found by teresahopson in Sunlight
March 30, 2023 at 11:27 AM
Ages: 14 - 18
License: Proprietary
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Views: 104 |
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