Navigational devices like the GPS system in your phone depend on gyroscopes to analyze the rotational motion of moving objects. Your phone contains a very sensitive gyroscope that determines how it moves along three axes of rotation.

The spoken word, music, earthquakes, vibrating equipment: the physics of mechanical waves, including sound, govern what we hear, their use in technology, and their effect during such events as earthquakes.

The pressure of fluids like air and water regulate many natural processes from those in living organisms to the weather.

The spoken word, music, earthquakes, vibrating equipment: the physics of mechanical waves, including sound, govern what we hear, their use in technology, and their effect during such events as earthquakes.

The force of friction makes it possible for people to walk and cars to move, but it also causes our machines to wear down, and some of the energy we generate to be wasted as heat.