Two images from the Maker Faire, an engineering and crafts fair held in San Mateo, California, about a month ago. Images courtesy Nathan Yan.

“Propane Fountain” exhibit by Wally Glenn (”Pyro Boy”)

Members of the Western Warship Combat Club of San Jose maneuver remote-controlled WWII-era model combat ships in a battle demonstration. The ships battled using CO2-powered steel projectiles.

Tags: engineering, fire, Maker Faire, San Mateo, water, Yan