A continuous range of frequencies of electromagnetic radiation, such as that produced when white light is refracted through a prism.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds...

(June 25, 1876) - George Armstrong Custer and the U.S. 7th Cavalry converge on the Little Bighorn River to corral the rebellious Lakota Sioux, Northern Cheyenne and Arapaho. After discovering the location of Sitting Bull’s village,...

MOT 1940: ADDRESS TO AMERICAN YOUTH CONGRESS: President Franklin D. Roosevelt (1882-1945) (SOT) 'It has been said that some of you are communists... very unpopular term... no American right... to subvert the Government & the...

Explore Constitutional Amendments 21 through 24 and understand why the Bill of Rights was a necessary addition to the Constitution. In-depth explanations of the amendments are presented with landmark cases and an analysis of each...

Meet Wanda Peters, who works at Goddard Space flight Center as the Assistant Division Chief for the Mechanical systems Division.<b<b<br/>r/>r/>

Calculus based review of conversions, velocity, acceleration, instantaneous and average velocity and acceleration, uniformly accelerated motion, free fall and free fall graphs, component vectors, vector addition, unit vectors, relative...

Nancy Mowll Mathews, the Eugénie Prendergast Senior Curator of Nineteenth and Twentieth Century Art, Emerita, at Williams College Museum of Art, discusses the relationship between George Bellows and early film. With the growth of early...

The very first in a very long series about the American presidential elections from 1788 to the present. I hope to have them done by Election Day 2016. Did you know that five different Johns ran for President in 1788? Woah!

The Turanor PlanetSolar will become the first solar-powered boat to circumnavigate the world when it returns to Monaco today. The vessel is equipped with more than 500 square meters of solar panelling. It measures 31m long and 15m wide....

This video is answering the question of how are The Elements listed.

What Cramer's rule is, and a geometric reason it's true

Qué Tiene De Especial La Nariz De Un Perro?

The U.S. Presidential Oath of Office, delivered through the presidents of the past

1621 - Plymouth colonists and Wampanoag natives share an autumn harvest feast; this is believed to be the first Thanksgiving in the colonies. Despite objections, George Washington issues a thanksgiving proclamation to celebrate American...

Discover the unique hoodoo rock formations in Utah's Goblin Valley State Park, often compared to the landscape of Mars.

Written by Founding Father James Madison in 1789, The Bill of Rights makes up the first ten amendments to the US Constitution. Many people still consider the Bill of Rights to be the cornerstone of our society, but not everyone agrees.

In this video, the teacher explains how to record various types of journal entries in Daniel Traders Journal. The examples include cash discounts, trade discounts, purchases, sales, bad debts, and more. The teacher provides clear...

"In this short Business English lesson, I show you 8 phrasal verbs that are often used in meetings. You'll see two example sentences for each phrasal verb, and you can also practise speaking with me.



Examples of the...

A fun and catchy Phonics Song for kids! Learn the sounds of the English Alphabet with simple words and music. First repeat the sounds of each letter, and then the words! Great for students, toddlers, children, or babies. It’s EASY to...

Or ribonucleic acid, is a nucleic acid, similar to DNA.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...

Martin Luther King, Jr.'s famous "I Have a Dream" speech was delivered at the March on Washington on August 28, 1963. In this public radio story you will hear from activists who were present that day and heard the speech. They remember...

Understanding how metaphors are used in the Bible is an essential tool for reading biblical poetry. Anytime someone describes one thing to describe another thing, they are using metaphorical thinking whether they realize it or not....

This video explains the concept of correlation versus causation using various examples. It emphasizes that just because two variables are strongly correlated does not mean that one causes the other. Instead, they may both be influenced...

Jessi takes Cayenne and Chili Pepper the Patagonian Cavies for a walk outside on 20' leashes. It's no easy feat to keep them calm and focused so they don't get tangled but also ensure a good time is had by all. Watch how they make it work!