What Do the Lights and Sounds of a Police Car Mean?
Sometimes we're all caught up with our business we hardly pay attention to details. Take, for example, a police car and the lights and sounds it produces.
When we see such a vehicle passing by, we get the drift. There's probably an emergency somewhere. If you're in the middle of the road, then you need to give way. But do you know that these signals don't mean the same thing all the time?
Here's what you need to know about police alarms.
The Sounds of Police Vehicles
Although light travels faster than sound, more often than not, people hear the alarm first before they see the lights of an emergency vehicle, like a police car. This is because a police siren is loud.
What many people don't know, however, is that the sounds can vary:
Wail - This is a rising-and-falling...