When the tutor was in high school, a course called Consumer Education was mandatory. The beautiful, energetic high school students of today will, sooner or later, be workers. They will gain one kind of freedom at the expense of another. …

Consumer Education: the Consumer Price Index Read more »

The tutor continues to explore auto batteries (aka car batteries).  While this topic is rare during tutoring, it’s probably relevant to virtually everyone at some point….   I recall, decades ago, a friend of mine bought a new battery for …

Auto batteries, part two: cold cranking amps and internal resistance Read more »