What's happening inside our ears when we can hear that ringing? What's happening inside our brains? Sit back, clean the wax out of your ears, and let Michael Aranda explain!

Join Jessi and friends as they learn about sound waves by making a string phone! Plus, learn how to make your own!

Can you feel them in your fingers? How about in your lungs? Vibrations are all around us, so let’s explore some everyday vibrations!

In this video Paul Andersen explains how diffraction can be affected by the size of the wavelength. When waves pass through an opening or move around an obstacle a shadow region is created. The size of the shadow zone will decrease as...

In this video Paul Andersen explains how waves will diffract (or bend) around an obstacle or while traveling through and opening. Diffraction will be maximized when the size of the opening or obstacle matches the wavelength.

Plot often trumps reality when portraying space in movies and, as a result, many films are full of inaccuracies. So how much fiction is actually written into some of our favorite movies? Movies mentioned (and potentially spoiled) in this...

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.

2 min video describing the speed of soundwaves through different mediums for middle school science

2 min video describing the properties of waves for middle school science

If a tree falls in a forest and no one is around to hear it, does it make a sound? Philosopher George Berkeley asked this famous question in 1710, and people are still debating it.



Where is the forest...

A video entitled “How Do Humans Hear Sound” which describes the parts of the human ear and how those parts send signals to the brain.

Join Vincent, Agathe, David, and Jules as they experiment with different methods to extinguish 100 candles. From using boomerangs and chemical reactions to sound waves and an air cannon, this video explores the science behind each...

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...

The tensor tympani muscle is a tiny muscle in the middle ear that helps dampens external sounds falling on the ear. The tensor tympani muscle originates from the Eustachian tube, which is also known as the auditory tube. From there, this...

Space is full of radio waves, plasma waves, magnetic waves, gravitational waves, and shock waves, all of which can travel in space without a medium. These waves are recorded by instruments that can sense these waves, and the data is...

When a plane, or in fact anything, travels faster than the speed of sound (i.e., breaks the sound barrier), a loud boom is heard, commonly known as a sonic boom. You may have heard that particularly loud, sometimes even painful boom when...

In the study of waves, amplitude is the maximum displacement of a wave from its rest position.
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Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise...

One of two types of seismic wave produced in an earthquake.
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Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

A waveform in which the vibrations of the medium it is propagated through are in the same direction as the wave's travel.
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Glossary Film.
Key scientific terms defined in just 60 seconds using...

A change in the observed frequency of a wave when it is emitted from a moving object and observed from a stationary point, or vice versa.
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Glossary Film.
Key scientific terms defined in just 60...

The SI unit of frequency, one hertz is equal to one cycle per second.
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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...

Sounds can change as they move from one medium to another. Under the right circumstances the effect is surprising and extreme. Physics - Waves - Learning Points. Sound is a wave that is created by vibrating objects. Every object has a...

Humans can only hear a certain range of sound frequencies. Discover the sounds we can't hear and why they can be useful. Physics - Waves - Learning Points. The frequency of sound waves determines whether we can hear them. High-frequency...

We have sent messages around the world and into space, but communicating underwater remains a challenge. How and why do radio waves allow us to talk to submarines? Physics - Waves - Learning Points. Salt water absorbs sound waves making...