When someone says there is no such thing as “cold,” only the absence of heat, you can point out that while cold is the absence of heat… absolute zero is the definition of COLD. The third law of thermodynamics addresses the absence of heat and what that means for entropy. It implies that absolute zero […]

Low pressures are often measured in inches of water column or “WC. Like most units of measure, it has a very simple origin; in a water manometer, 1″ of water column is literally the amount of force it takes to raise the column of water by 1”. While some water manometers (water tubes) are still […]

Many of the “old-timers” in our trade are baby boomers; they were likely born after World War II ended and before the mid-1960s. These people grew up in a different time than today’s millennials (Gen Y) and zoomers (Gen Z). As those old-timers continue to retire, our trade needs to start attracting, recruiting, and managing […]