Rubens' tube is a way to show relationship between sound waves and sound pressure. Today is only used as tool in education to engage physics students.
It's a tube, so it is useful to show a one-dimensional wave. But this guy from Fysikshow decided to take the Rubens’ tube to another level by building a two-dimensional ‘Pyro Board’. The result is stunning and will leave you speechless.
Source: Veritasium Youtube channel
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