In this issue:

The Continuing Saga of the Seven Circuits

Charging System Evolution & Vintage Vehicles, Part 2
Making sure your rod’s charging system is up to running cooling fans and aftermarket electronic ignition. Plus, AWG, AC ripple, and spikes..

It’s Either Hot, or it’s Not!
Endothermic, exothermic, latent heat, sensible heat — and why you should care

It’s Mixtures, Emulsions, and the Basics of Fluid Mechanics