Acoustics is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics technology may be called an acoustical engineer. The application of acoustics is present in almost all aspects of modern society with the most obvious being the audio and noise control industries.
Principles of acoustics have been applied since ancient times: a Roman theatre in the city of Amman
Spectrogram of a young girl saying "oh, no"
An inexpensive low fidelity 3.5 inch driver, typically found in small radios
St. Michael's Cave
Physics is the natural science of matter, involving the study of matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. Physics is one of the most fundamental scientific disciplines, with its main goal being to understand how the universe behaves. A scientist who specializes in the field of physics is called a physicist.
Ancient Egyptian astronomy is evident in monuments like the ceiling of Senemut's tomb from the Eighteenth Dynasty of Egypt.
Galileo Galilei (1564–1642) related mathematics, theoretical physics, and experimental physics.
Isaac Newton discovered the laws of motion and universal gravitation
Max Planck (1858–1947), the originator of the theory of quantum mechanics
