Firefighters start bigger fires to stop wildfires—here's the science! 🔥🚒 #Wildfire #Firefighters

American wildfire fighters sometimes start controlled burns before battling the main fire — and the physics behind it is brilliant. Wildfires create low pressure zones that pull surrounding air inward, meaning a man-made fire lit ahead of the wildfire gets pulled toward it rather than spreading elsewhere. The controlled burn simultaneously consumes available oxygen, and when both fire fronts meet the junction suffocates and extinguishes the wildfire. But this technique demands expert knowledge of terrain and wind — miscalculate and the fire expands or traps the team entirely. After visible flames are gone, internal smoldering fires invisible during daylight remain the hardest to eliminate. Nighttime operations reveal every hidden ember standard daytime searches completely miss.
#WildfireControl #Firefighters #ForestFire #FireFighting #WildfireScience #ControlledBurn #FirebreakTechnique #WildlandFirefighter #FireSafety