The research site in South Carolina has a wall of 105 fans that can generate wind gusts to blow embers. Fire engineers say most homes that burn during wildfires are ignited by embers, rather than a wall of flames.

The research site in South Carolina has a wall of 105 fans that can generate wind gusts to blow embers. Fire engineers say most homes that burn during wildfires are ignited by embers, rather than a wall of flames.