In this video, we learn how to find the tangent value of an acute angle in a right triangle by using the ratios of the triangle's sides. The tangent value is found by dividing the length of the opposite leg by the length of the adjacent...

Dive into the thrilling world of The Race of Gentlemen, where vintage cars race on the beach, bridging generations.

This video provides an introduction to the speed of sound in air and demonstrates several methods to measure or calculate it. It also presents equations to calculate the speed of sound based on the wavelength and frequency of a sound...

It used to be that you could get on a Concorde jet and fly across the Atlantic ocean faster than the speed of sound, but what does the future hold for supersonic flight?

In this video, the topic of food security and its various factors affecting food supplies are discussed. The narrator explains that having enough food to feed a population, especially when population numbers are rising, is important for...

Howcast - Learn how to care for your bathing suit with the tips from swimsuit expert Candace Draper in this Howcast video.

A team of scientists made the first-ever sighting of an exotic particle by using the Large Hadron Collider at Europe’s CERN.

When you hear the roar of traffic, the bark of a dog, or your teacher's voice, you are experiencing sound. This program uses colorful animations to explore important characteristics of sound, including intensity, loudness, pitch, and...

Can anything travel faster than the speed of light? Is it even possible for something to undertake the “speed of light” travel? And what if something can actually travel faster than light? What is Cherenkov radiation and how is it...

When you hear the roar of traffic, the bark of a dog, or your teacher's voice, you are experiencing sound. This program uses colorful animations to explore important characteristics of sound, including intensity, loudness, pitch, and...

In this video Paul Andersen explains how the wave speed measure the speed of a wave through a medium. The medium determines the speed of the wave. The velocity of the wave is equal to the product of the wavelength and the frequency of...

Explore the quirky world of penny-farthing racing with UK champion Richard, whose passion reignites a bygone era.

Learn about the different types of waves, including transverse and longitudinal waves. Understand how these waves move through different mediums and their properties. Discover the speed of sound and how it varies depending on the...

Fascinating insight into the sonic boom created when a jet plane breaks the sound barrier.
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Start 2017 with the 30-day vocabulary challenge: learn 30 phrasal verbs in 30 days! Day 1: crack up, crack down

How do you know if you're depressed? Sometimes it can be hard to tell if you have a clinical depression, or if you have a temporary sadness.
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How do doctors diagnose depression? There are several depression symptoms that...

Upon viewing the What is Sound video series, students will be able to do the following: Understand that sound is produced when matter vibrates. Explain that sound energy can travel through air, liquids, and solids, which are generally...

In this lesson, we will be adding blood details to our stock model using decals in Blender. This will add to the realism of our scene as people bound in stocks are likely to be wounded in some way.

Upon viewing the What is Sound video series, students will be able to do the following: Understand that sound is produced when matter vibrates. Explain that sound energy can travel through air, liquids, and solids, which are generally...

My gift to you this Christmas is 25 British Bitesize Lessons. Lesson #18 is about the word TURN.

This video is a lesson about sound and how it works. It covers topics such as the definition of sound, how sound is produced through vibrations, the different types of waves (transverse and longitudinal), the speed of sound in different...

When you hear the roar of traffic, the bark of a dog, or your teacher's voice, you are experiencing sound. This program uses colorful animations to explore important characteristics of sound, including intensity, loudness, pitch, and...

When Queen Jocasta of Thebes gave birth to Oedipus, a grim air seized the occasion. Her husband, King Laius, had received a prophecy from Apollo's oracle foretelling that he would die at the hands of his own son. Determined to escape...

Howcast - Learn how to say "how far is that" in Italian with this Howcast video.