CAN A FOREST FIRE BE EXTINGUISHED WITH SOUND WAVES?
It takes a certain amount of time for firefighters to reach the location of a blaze after being alerted about it. In that time a device called the Firesound might have already done the heavy lifting— without even using any water. Although still in its conceptual stages, the 3-foot-wide, 1-foot-tall drone can be used to patrol parks and forests. If it discovers a fire that’s just breaking out, it emits lowfrequency sound waves to snuff out a small fire before it can grow by moving just enough air to deprive the fire of its fuel, effectively starving it. Most of the Firesound’s components already exist, so it should not be very long before these vigilant electric drones are up and running.