Filled and slightly pressurized ball with flammable gas + oxygen/air mixture. The water cooled the ball causing the pressure to drop which allowed the flame to enter the ball causing boom.

Mistake was filling ball with fuel + oxygen.. pure fuel wouldn’t have created that nice of a flame but wouldn’t have been able to explode like that.

Source: I was a kid who had unsupervised access to a welding shop while growing up. Oxy-acetylene makes one hell of a bang

This is happening in my workplace. Almost all new hires request a Mac over windows

Haha but you included more info. Did you know it or find it? I saw the word Bishop twice in the photo. Googled it. Found the airport. Flipped through street view photos and found the baggage claim.

Eastern Sierra Regional Airport in Bishop California