Simple Electricity

Let’s count from zero to twenty using four different kinds of numeration systems: hash marks, Roman numerals, decimal, and binary: System:...

The Romans devised a system that was a substantial improvement over hash marks, because itused a variety of symbols (or ciphers) to represen...

First, we have to distinguish the difference between numbers and the symbols we use to represent numbers. A number is a mathematical quantit...

More on the “skin effect” As previously mentioned, the skin effect is where alternating current tends to avoid travel through the center ...

Inductor quirks In an ideal case, an inductor acts as a purely reactive device. That is, its opposition to AC current is strictly based o...