1786/12/31 by Robert Waring Darwin · 3 citations
Arts and Humanities · Medicine · #History of Science and Medicine #Object (grammar) #Closing (real estate) #Visible spectrum #Optometry #Optics #Physics #Computer vision #Artificial intelligence #Art #Computer science #Medicine #Political science
paper · doi:10.1098/rstl.1786.0016
openalex publication_date 1786/12/31 · openalex created_date 2022/05/12 · openalex updated_date 2026/07/02
When any one has long and attentively looked at a bright object, as at the setting sun, on closing his eyes, or removing them, an image, which resembles in form the object he was attending to, continues some time to be visible: this appearance in the eye we shall call the ocular spectrum of that object.