- Category : 1870-births
- Type : MGP
- Profile : 6/2 - Role Model / Hermit
- Definition : Split - Small (14,29,34)
- Incarnation Cross : LAX Education 1
German physiologist, best known for his work in the field of sensory physiology. He was the author of the popular Handbuch der Physiologie des Menschen (Handbook of Human Physiology), published in five volumes from 1904 to 1910.
His primary areas of work involved physiological optics, physiology in regards to sense of smell and taste, studies of position and motion sensations and the physiology of the vocal organs, to name a few.
He is best remembered for the development of ophthalmic instruments and aids—he built an adaptometer for measuring dark adaptation of the eyes, an anomaloscope for the study of color blindness, and introduced the so-called Nagelschen Farbtäfelchen (Nagel's color tablet) for the testing of color perception.
Willibald Nagel died in Rostock on 13 November 1911 at age 41.