Directing sound to a specific location is difficult because of how sound waves behave. As vibrations move through the air, ...

trumpet the sound from the trumpet comes from a vibrating column of air created by buzzing lips of the trumpeter A sound wave is a longitudinal wave. When an object vibrates it produces a ...

The “Helmholtz resonator” concept explains the frequencies of sound produced by clapping the hands together in different configurations.

What if you could listen to music or a podcast without headphones or earbuds and without disturbing anyone around you? Or have a private conversation in public without other people hearing you? Our ...

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If the sound wave reaches our ears and our brains then we hear the sound. They also explain that sound needs something called a medium to travel through and Fran repeats a famous experiment by a ...

5. Encourage students to think about other kinds of energy that travel in the form of waves (e.g. sound, light). Explain to students when a train whistle screams, the sound they hear has moved ...

Named after the Whispering Gallery in St Paul's Cathedral where this effect was first explained ... and sound long enough for them to interact with one another, correlating the two waves.