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Most phosphorescent compounds are still relatively fast emitters, with triplet decay-times in the order of milliseconds. Common examples include the phosphor coatings used in fluorescent lamps, where phosphorescence on the order of milliseconds or longer is useful for filling in the "off-time" between AC current cycles, helping to reduce "flicker".
Example of phosphorescence Monochrome monitor Aperture grille CRT phosphors. A phosphor is a substance that exhibits the phenomenon of luminescence; it emits light when exposed to some type of radiant energy.
Nadar, the photographer. Hermaphrodite is a series of photographs of a young intersex person, who had a male build and stature and may have been assigned female or self-identified as female, taken by the French photographer Nadar (real name Gaspard-Félix Tournachon) in 1860.
One example is the meadow saxifrage, Saxifraga granulata. [39] Charles Darwin gave several other examples in his 1877 book "The Different Forms of Flowers on Plants of the Same Species". [40] About 57% of moss species and 68% of liverworts are unisexual, meaning that their gametophytes produce either male or female gametes, but not both. [41]: 377
The clitoris (especially the glans) is the human female's most sensitive erogenous zone and generally the primary anatomical source of human female sexual pleasure. [58] Sexual stimulation of the clitoris (by a number of means) can result in widespread sexual arousal and, if maintained, can result in orgasm .
Laqueur uses this example to explain that female anatomy and sexuality are defined according to "the demands of culture." [49] He concludes that it was "culture and not biology that was the basis for claims bearing on the role and even the existence of female pleasure. The body shifted easily in the eighteenth century from its supposedly ...
The human female reproductive system is made up of the internal and external sex organs that function in the reproduction of new offspring. The reproductive system is immature at birth and develops at puberty to be able to release matured ova from the ovaries , facilitate their fertilization , and create a protective environment for the ...
Sex organs are typically differentiated into male and female types. In animals (including humans), the male sex organs include the testicles, epididymides, and penis; the female sex organs include the clitoris, ovaries, oviducts, and vagina. The testicle in the male and the ovary in the female are called the primary sex organs. [1]