“Electric Motor energy transformation” by coach_robbo is licensed under CC BY-NC-SA 2.0. Many scientists and philosophers contributed to the discovery of the law of conservation of energy. People have been aware of the concept of energy conservation since ancient Greece. These ancient Greek philosophers, such as Thales of Miletus, believed that all substances on Earth […]

There are many acceptable methods for making a wire splice, and you need to consider many different factors when making a splice. Here are a few considerations. High Voltage vs. Low Voltage – If the connection is 24V or less, it USUALLY has fewer NEC (National Electrical Code) rules and regulations concerning how the connections are […]

I walked into my first real job interview in the HVAC trade. The manager was a guy named Ernie, and he walked me out to the warehouse. Quick warning: guys named Ernie are tough. Don't mess with a dude named Ernie. He walked up to a box, snatched a pen out of his shirt pocket, […]