What's the purpose of a company? In this bold talk, activist and filmmaker Abigail Disney imagines a world where companies have a moral obligation to place their workers above shareholders, calling on Disney (and all corporations) to...

There is an invisible shell of radiation surrounding our planet that can wipe out satellites and could endanger future explorers. One possible solution to this problem? Good, old-fashioned radio waves.

A Category 3 hurricane made landfall near the Mississippi-Alabama State line on July 5, 1916, with record wind and storm surge impact in Mobile, Alabama, and then inland flooding throughout several states. Newspapers reported, “The...

With minerals better understood, it's time to discuss rocks. The first type of rock we will discuss is igneous rock. These rocks are formed when magma/lava crystallizes. But how does the mantle rock melt to form magma in the first place?...

How Marijuana Is Good And Bad For You

This is a lecture video on radio waves where the instructor explains how radio waves are produced and used to communicate around the world. The video covers the electromagnetic spectrum and explains that radio waves are a classification...

Each kind of light has a unique wavelength, but human eyes can only perceive a tiny slice of the full spectrum -- the very narrow range from red to violet. Microwaves, radio waves, x-rays and more are hiding, invisible, just beyond our...

This visualization attempts to capture the mood of Claude Debussy's best-known composition, Clair de Lune (moonlight in French). The piece was published in 1905 as the third of four movements in the composer's...

Microwave ovens use radio waves to quickly and efficiently cook food by agitating water molecules and generating heat at the atomic level. The waves can pass through certain materials such as plastic, glass, and ceramic, making heating...

On its 10th anniversary, Third Rock Radio hosts share the history and evolution of the partnership with NASA and bringing space to the airwaves. HWHAP Episode 224.

Under the leadership of Lisa Jackson, Apple's environment and social VP and former head of the EPA, the company is already carbon neutral within their own corporate and retail boundaries. By 2030, Apple hopes to extend carbon neutrality...

When you want to drop a hint or give the most essential piece of information in English, what can you say? Today, get a native and natural way to do it to add personality to your English.

In this video, you will learn how to add buildings to the World Anvil platform for our fantasy world. We will start by selecting the building type and then entering details such as name, description, and purpose. You will also learn how...

The term Anti-pattern has come into Project Management from the software engineering world, via the Agile community. But, what does it mean? There are a lot of examples of anti-patterns in software engineering, and also, specifically, in...

Amplitude Modulation, commonly abbreviated as AM, is a common method of broadcasting radio signals. This method dates back to the 1870s, i.e., the time when we first discovered that information in the form of audio production can be...

Learn how a radio works, from transmitting electrical energy through radio waves to converting them back into audio for the user to listen to. Understand how signals are encoded and decoded using modulation techniques, as well as the...

This program explores the fascinating features of vibrations and waves. Vivid examples of these phenomenon help students understand how sounds are formed, how light travels, and how ocean waves move. Special attention is also given to...

Scientists use satellite data to peer into the massive storm – learning how and why it changed throughout its course.



Credit: NASA's Goddard Space Flight Center/Cl






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The equation for the #AngularMomentum of a #PointParticle is built and visualized. Proof a point particle can have angular momentum is shown. The right-hand rule for angular momentum direction is shown.

In this video Paul Andersen details the characteristics of electromagnetic waves. Electromagnetic waves are transverse waves that can move through both mediums and vacuums. The electric and magnetic fields oscillate perpendicular to...

In this video Paul Andersen shows you how to develop and use models in a mini-lesson on Models. Two examples are included in the video and two additional examples are included in the linked thinking slides. <br/>

In this video Paul Andersen compares and contrasts mechanical and electromagnetic waves. Both types of waves transfer energy through oscillations but mechanical waves requires a medium. Several examples of each type of wave are included.

In the radio race, one inventor came out ahead while the other was overshadowed. Michael Aranda goes into the history of the radio and the many people who contributed to make the tool we use every day.