👉 Indicators are terms used in various fields, including physics and engineering. They are used to quantify or measure something by comparing it to a known reference value. Indicators can be either physical or virtual, depending on their purpose. For example, in physics, an indicator could represent the position of an object at a particular time. It would be measured using a measuring device such as a thermometer or a light source. The higher the reading, the more accurate the measurement is. In engineering, indicators
