Me in 10 seconds:

My name is John Marshall Jr.

I am an entrepreneur, mechanical engineer, guitarist, and world traveler. I started Ransford Engineering in 2016 and live in Colorado Springs, USA.

What is TuningJohn?

I write from an Engineer’s perspective in an attempt to provide provide a unique viewpoint on the world, equipping you with a set of tools to solve problems in a way you wouldn’t think of on your own. You don’t need to be an engineer to benefit. Above all, I hope to be useful.

Where to start?

Engineering Principles is a collection of basic engineering principles that can be used as tools by non-engineers and engineers alike to make their lives and businesses better.

Book Notes is a collection of my personal notes from books I’ve read.