Mike Marcum didn’t have a lab, funding, or a PhD. Just a pile of salvaged electronics — and a theory. One night in Missouri, he fired up his homemade device. It formed a vortex. He tossed in a screw.

This “Back to the Future” superfan’s hand-built DeLorean time machine may look exactly like the one from the movie, but it still does need roads. And it recently drove down one that’s considered among ...

Forbes contributors publish independent expert analyses and insights. DeloreanRental.com was founded in early 2020 by Jason Alspaugh with a simple but ambitious vision: to make the legendary DeLorean ...