Light, darkness, and a smart phone app

Light, darkness, and a smart phone app

Photo credit: James Lee @ Flickr.com
http://www.flickr.com/photos/jronaldlee/

Recently I watched the fireworks show my city put on for Independence Day from the roof of my home. With my smart phone in hand I took photos of the pyrotechnic displays and even recorded some video. The program lasted a total of 20 minutes and by the time it was over the darkness of the night returned in full force. I could still see well enough to negotiate my path from my perch on the roof to the edge where I had used a step ladder to scramble onto the rooftop a half-hour earlier. I figured it would be just as easy to get off the roof as it was to get on it.

I was mistaken.