Acoustics is the branch of science that deals with the production, control, transmission, reception and effects of sound.
The word ‘acoustics’ has come from the Greek term akoustikos, meaning ‘for hearing’.
Let’s see why acoustics is relevant. When a concert hall or a theatre is built, the architect needs to plan how sound waves travel through the air, so as to make sure everyone hears the same sound, clearly.
Here, sound may be balanced using soft absorbent materials like curtains, carpets, plaster etc. Next, take the case of a doctor. He uses high pitched ultrasound waves in order to see the interiors of the human body.
The wonders of acoustics have been seen in the world since centuries. The Greeks were known to be one of the earliest users of this technology.
Today, there are many examples that demonstrate acoustics. One such is the Sydney Opera House in Australia.