I invented the Bow Blower, a combination of the bow drill and forge blower to make a device that can force air into a fire while being easy to construct from commonly occurring natural materials using only primitive technology. I began by fanning a fire with a piece of bark to increase its temperature. It is this basic principle I improved on throughout the project. Next, I made a rotary fan from
![Primitive Technology: Forge Blower](https://cdn-ak-scissors.b.st-hatena.com/image/square/aadc94f062d91d69f2ca9e700d7d0f5c6b584380/height=288;version=1;width=512/https%3A%2F%2Fi.ytimg.com%2Fvi%2FVVV4xeWBIxE%2Fhqdefault.jpg)