Most ambulance sirens run at about 120 decibels. That is 4 times louder than a power mower and about twice as loud as a chainsaw. That’s even louder than most rock concerts! Light travels almost 900,000 times faster than sound. Help the citizens of Kidtropolis, USA as an EMT or be whatever you want to be. The ambulance is just one of the many places you can work in this city for kids run by kids. There are over two dozen more!