Although the flood was in all ways an unmitigated disaster for us, it has left us
with this natural experiment.
We had 4 classrooms displaced. Prior to the flood the projectors were
mounted. Currently, in the temp classrooms, the projectors are on carts or
Of course there are a million other uncontrolled variables exerting influence
here, but teachers are clearly using their projectors significantly less. (based
upon lamp usage pre and post flood).
60-90% less with an ave of 80% reduction.
just passing this along FYI