It's a closed loop of energy sustainability — the fan burns the fire hotter, resulting in a cleaner smoke with less particulate matter, which generates more power for the fan, siphoning off extra electricity to any USB-powered device you plug into it.
This is an amazing mission that will conduct the largest, most precise three-dimensional map of our Galaxy a census of a thousand million stars in our Galaxy. It will monitor each of its target stars about 70 times during a five-year period, precisely charting their positions, distances, movements, and changes in brightness. Gaia is expected to discover hundreds of thousands of new celestial objects, such as extra-solar planets and brown dwarfs and quasars. Within our own Solar System, Gaia should also observe hundreds of thousands of asteroids. The spacecraft will also develop new tests for Einstein's General Theory of Relativity.