Contents [show] 1  1 Proximal Osteology and Articulation. 2  2 Shaft of the Ulna. 3  3 Distal Osteology and Articulations. 4  4 Clinical Relevance â Common Fractures of the Ulna.
exists and is an alternate of . Campbell Stokes Recorder: measures sunshine. This type of recorder is made up of a glass ball which concentrates sunshine on to a thick piece of card. The sunshine then burns a mark on the card which shows the number of hours of sunshine in the day. A Campbell Stokes Sunshine Recorder.
The March equinox is often used by astronomers to measure a tropical year â the mean time it takes for the Earth to complete a single orbit around the Sun. Also known as a solar year, a tropical year is approximately 365 days, 5 hours, 48 minutes and 45 seconds long.