all you have to do is stop the car and get out of the car and listen to the police siren
wind noise
A siren.
jhon robison
a loud siren
A police car, a fire truck, some buildings, and more
Emergancy Services Professionals such as Police, Fire, Ambulance need to catch and hold your attention when they move to a car crash etc.The wailing sirens are used to tell you to m ove out of the way. Waxing and Waning is what then moon does when it shows you its various faces. Not the same thing
A Siren....but the different tones of a siren are Wail, Yelp, Hi-Lo, Hyper Yelp, and the Air Horn. Loudness of a siren is between 110-130 db
The Doppler effect
A siren, bullet proof car, speeding gun, police radio and reinforced bumpers.
Sirens on a police car either makes "Noise" or "Wails".
Siren, Flashing Lights, Bars, Two Way Radio, Computer