Over the holidays, I had occasion to watch a National Geographic documentary on the April 2019 fire that took place in the Notre Dame cathedral in Paris. A segment of the show touched on how the city fire department utilized an unmanned, 1,110 lb. fire-fighting machine, lovingly called the Colossus, to enter parts of the inferno unsafe for human firefighters. Not only was this advanced unit charged with discharging 660 gallons of water per minute into the blaze and providing a live video feed…See More