You see Ken Miller’s smoke displays at NFL games and air shows. What you don’t see are the explosions, DIY rockets, and smoldering craters that speckle his Minnesota farm. His personal pyrotechnic experiments don’t belong on the 50 yard line or in anyone’s backyard.

Hot rod

Trial and error

Rocket man

Go or no go

Fountain

Night shift

Pack of smokes

Hell hole

Cloud and clear
