Doug Domke has a degree in Physics. He spend his career in the semiconductor industry where computer chips are made. Retired today, he lives in Arizona. He has always been interested in knowing how everything works, and his books reflect that. "A Small Book on Physics" covers what we know today about very big stuff like the universe, very small stuff like the particles that make up atoms, and everything in between. E-book or Paperback. "What's Inside the Black Box?" talks about high-tech items we all use every day, like GPS navigation or a digital camera, taking them apart and seeing how they work. E-book or Paperback.