| Topic | Summary |
| Subatomic particles |
An atom is the basic component of a chemical element, but atoms themselves are composed of various combinations of smaller, or subatomic, particles, such as electrons, protons, and neutrons. |
| Electronics |
Electronics is the study and use of devices that operate by controlling the flow of electrons or other electrically charged particles. |
| Faraday's law |
Induction coils operate according to Faraday's law in order to step up the nominal battery voltage to the voltage needed to bridge the gap across the spark plug electrodes. |
| Stepper motor |
A stepper motor rotates in a series of very precise steps, controlled electronically by a microprocessor. |
| Tolerance |
Tolerance in engineering is an allowance made for imperfections in a manufactured object. |
| Transformer | A transformer is an electrical device that transfers energy from one electrical circuit to another by magnetic coupling without moving parts. |