Analysis of information sources in references of the Wikipedia article "Física islâmica medieval" in Portuguese language version.
The first clear description of the device appears in the Book of Optics of Alhazen.
In reforming optics he as it were adopted "positivism" (before the term was invented): we do not go beyond experience, and we cannot be content to use pure concepts in investigating natural phenomena. Understanding of these cannot be acquired without mathematics. Thus, once he has assumed light is a material substance, Ibn al-Haytham does not discuss its nature further, but confines himself to considering its propagation and diffusion. In his optics "the smallest parts of light", as he calls them, retain only properties that can be treated by geometry and verified by experiment; they lack all sensible qualities except energy.
In his optics "the smallest parts of light", as he calls them, retain only properties that can be treated by geometry and verified by experiment; they lack all sensible qualities except energy.
The principles of the camera obscura first began to be correctly analysed in the eleventh century, when they were outlined by Ibn al-Haytham.
|arquivourl=
requer |arquivodata=
(ajuda) 🔗|transcriçãourl=
missing title (ajuda). NPR. KUHF-FM Houston|arquivourl=
requer |arquivodata=
(ajuda) 🔗|oclc=
value (ajuda)|oclc=
value (ajuda)|oclc=
value (ajuda)|oclc=
value (ajuda)|oclc=
value (ajuda):
Through the influential work of Alhacen the onset of a physico-mathematical conception of optics was established at a much earlier time than would be the case in the other mathematical sciences.
|oclc=
value (ajuda)