Measuring stuff is hard.
“Microwave ovens run at roughly one horsepower. This sounds like nonsense unless you’re familiar with math, energy, work, dimensional analysis, electromagnetism, radiation, dielectric heating, magnetron design, and thermodynamics.Well, it sounds like nonsense until you microwave your hundredth frozen burrito and it becomes mundane magic. We learned to measure energy, then capture it, store it, and harness it.”