A private drone that recorded footage of the Sand Fire burning in the Sierra foothills caused some controversy after it put crews in danger. But even as firefighters criticize its use in this case, they think the technology could actually help them in the near future.

NEVER FLY PERSONAL DRONES OVER A FIRE SCENE.....YOUR COULD BRING DOWN A HELICOPTER

Fuel rolled toward the fire truck at least twice. The second time the rig was out of water and waiting for a supply line.

Uploaded by FR1video February 09, 2015

If you burn wood for heat, you need to clean your chimney to prevent chimney fires. He will show you how to SAVE MONEY by cleaning your chimney yourself. The right tools and a little elbow grease make it quick and easy to clean your chimney.

Check out this animated video from YouTube channel "Minute Physics" to better understand the science behind fire, its behavior, and its production. The familiar shape of fire is also scientifically explained.