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Low light and lack of color of this sort may be associated with depression and lethargy. This association was made as far back as the 2nd century by the ancient Greek physician, Aretaeus of Cappadocia , who said, "Lethargics are to be laid in the light and exposed to the rays of the sun, for the disease is gloom."
The red color of the chromosphere could be seen during the solar eclipse of August 11, 1999.. The density of the Sun's chromosphere decreases exponentially with distance from the center of the Sun by a factor of roughly 10 million, from about 2 × 10 −4 kg/m 3 at the chromosphere's inner boundary to under 1.6 × 10 −11 kg/m 3 at the outer boundary. [7]
The ambient optic array is the structured arrangement of light with respect to a point of observation. [1] American psychologist James J. Gibson posited the existence of the ambient optic array as a central part of his ecological approach to optics.
Audience effect (psychology) (social psychology) Auger effect (atomic physics) (foundational quantum physics) Aureole effect (atmospheric optical phenomena) (scientific terminology) Autler–Townes effect (atomic, molecular, and optical physics) (atomic physics) (quantum optics) Autokinetic effect (vision) Avalanche effect (cryptography)
Ambiguity effect; Assembly bonus effect; Audience effect; Baader–Meinhof effect; Barnum effect; Bezold effect; Birthday-number effect; Boomerang effect; Bouba/kiki effect; Bystander effect; Cheerleader effect; Cinderella effect; Cocktail party effect; Contrast effect; Coolidge effect; Crespi effect; Cross-race effect; Curse of knowledge ...
One common example is the rainbow, when light from the Sun is reflected and refracted by water droplets. Some phenomena, such as the green ray, are so rare they are sometimes thought to be mythical. [2] Others, such as Fata Morganas, are commonplace in favored locations. Other phenomena are simply interesting aspects of optics, or
Consistent light exposure has a greater effect than intermittent exposure. [14] In rats, constant light eventually disrupts the cycle to the point that memory and stress coping may be impaired. [15] The intensity and the wavelength of light influence entrainment. [2] Dim light can affect entrainment relative to darkness. [16]
A 2022 psychology study in China found that artificial lighting changes a person's perception of visual objects. Between the participants of the experiment, red and blue light reduced feelings of calmness and stability and increased feelings of irritation and nervousness, while green light reduces the feeling of pleasure and yellow light ...