Radiometry

Radiometry is like a special kind of measuring. It's all about light or radiation and how much energy is coming from it. This energy comes from all around us, like sunlight and stars, or from machines like microwaves and x-rays. Radiometers are instruments that measure the intensity of this energy, which lets scientists and engineers learn more about the light or radiation source. Radiometry is an important tool for understanding how light works and how we use it.