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Our Microscope column answers the most intriguing science, tech, engineering and maths queries you can throw at us. So, why do voices sound so different on voice recordings?

Bathymetry is the study of the ocean floor. And it creates a lot of maps! These maps record the changing depths of the ocean and are often beautiful to look at. Why not make your own?

Here is an acoustic quiz for you to sound out! Answer these questions and get some good vibrations.

A magnifying glass can bend light waves to make an object look bigger. Can you make a magnifying glass for sound waves too?