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For the past 140 years, the camera-type cephalopod eye has been compared with the vertebrate eye as an example of convergent evolution, where both types of organisms have independently evolved the camera-eye trait and both share similar functionality. Contention exists on whether this is truly convergent evolution or parallel evolution. [3]
The human eye, showing the iris and pupil. In 1802, philosopher William Paley called it a miracle of "design."In 1859, Charles Darwin himself wrote in his Origin of Species, that the evolution of the eye by natural selection seemed at first glance "absurd in the highest possible degree". [3]
In the eye of the camera — Illustrated historical essay about early photography; Lippmann's and Gabor's Revolutionary Approach to Imaging; The Digital Camera Museum with accurate history section and many rare items Archived 2017-02-16 at the Wayback Machine; The Fascinating Timeline of Photography Technology
An eye is a sensory organ that allows an ... and focusing is achieved by telescoping the lens in a similar manner to that of a camera. [5] ... Evolution of the ...
The functioning of a camera is often compared with the workings of the eye, mostly since both focus light from external objects in the field of view onto a light-sensitive medium. In the case of the camera, this medium is film or an electronic sensor; in the case of the eye, it is an array of visual receptors.
A simple eye or ocellus (sometimes called a pigment pit [1] [2]) is a form of eye or an optical arrangement which has a single lens without the sort of elaborate retina that occurs in most vertebrates. These eyes are called "simple" to distinguish them from "compound eyes", which have multiple lenses. They are not necessarily simple in the ...
From the April 2022 issue of Car and Driver.. As cars get larger and more complex, so do their components. Consider the humble side-view mirror, once an optional add-on, now a safe-folding, lane ...
It has been proposed that glass eye covers in hieroglyphs from the Old Kingdom of Egypt (c. 2686–2181 BCE) were functional simple glass meniscus lenses. [40] The so-called Nimrud lens, a rock crystal artifact dated to the 7th century BCE, might have been used as a magnifying glass, although it could have simply been a decoration. [41] [42 ...