Here’s my 1995 Ford F-350. Imagine it with a diesel-electric drivetrain if the 7.3-liter Power Stroke ever goes kaput! Caleb Jacobs The small start-up plans to show a completed prototype by ...

Petrified wood is one of the most sought-after materials in the world for both its aesthetic value and its scientific value. But in Indonesia, miners who risk their lives to dig it up barely make ...