Operating Principle (Physical Description)
- This field contains information on the principle governing the operation of the object.
- The operating principle refers to the mechanisms, processes and physical or chemical principles that govern the operation of the object.
- N.B.: Do not confuse the Operating Principle field with the History of Use field. The Operating Principle field contains a brief description of the operating mechanisms of the object, whereas the History of Use field contains information on the different uses of the object.
A Gregory telescope used for stargazing
| || Object Name||Gregory telescope|
| ||History of Use||stargazing|
|Operating Principle|| The image is reflected in the first mirror and then in the second, where the image is inverted, before being reflected into the dual eyepiece.|
- The Operating Principle field is particularly useful when information is entered clearly, concisely and consistently.