Grace Place Sermon Questions

There are people whose job is to study fire. All the rest of us just take these naturally occurring things, like air, water and fire, for granted. What’s to know? Apparently quite a lot. Studying the physics of fire is important to firefighters. For them to fight fire, they need to know how fire is created and how flames advance.   For fire to advance, three ingredients are necessary. First is combustion, which is the chemical reaction of a fuel with oxygen that results in glowing, flaming, and heat release. Then there’s a transfer of energy by radiation (the release of heat) or convection (the movement of hot gases or fluids). The third ingredient is the ignition of new fuels that are encountered by the released energy. Got that? No? Me neither so we turn to one of our resident scientists, Dr Shane Kelley, for an illustration. [1] Scientist have something called “The Fire Triangle” that illustrates the three ingredients of fire – oxygen, heat and fuel. To aid in our understa...