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Transparent eyeball. The transparent eyeball is a philosophical metaphor originated by American transcendentalist philosopher Ralph Waldo Emerson. In his essay Nature, the metaphor stands for a view of life that is absorbent rather than reflective, and therefore takes in all that nature has to offer without bias or contradiction.
The Purple Earth Hypothesis (PEH) is an astrobiological hypothesis, first proposed by molecular biologist Shiladitya DasSarma in 2007, [1] that the earliest photosynthetic life forms of Early Earth were based on the simpler molecule retinal rather than the more complex porphyrin -based chlorophyll, making the surface biosphere appear purplish ...
Knowledge argument. The knowledge argument (also known as Mary's Room or Mary the super-scientist) is a philosophical thought experiment proposed by Frank Jackson in his article "Epiphenomenal Qualia " (1982) and extended in "What Mary Didn't Know" (1986). The experiment describes Mary, a scientist who exists in a black-and-white world where ...
It’s not the only color for a cause. Purple probably won’t be the only porch light color you’ll see. People use red porch lights to highlight women’s heart health. And blue porch lights ...
The science behind the white to purple light change. Purple street lights contrast with the red stop lights at the intersection of Hypoluxo and Jog Roads in Palm Beach County. LED lights are made ...
Secular spirituality is the adherence to a spiritual philosophy without adherence to a religion. Secular spirituality emphasizes the inner peace of the individual, rather than a relationship with the divine. Secular spirituality is made up of the search for meaning outside of a religious institution; it considers one's relationship with the ...
Hocevar was 22nd before the penalty and is now 24th and 181 points outside the final playoff spot. Hocevar will need to win a race over the final seven regular-season races of the season to make ...
The visible spectrum is the band of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light (or simply light). The optical spectrum is sometimes considered to be the same as the visible spectrum, but some authors define the term more broadly, to include the ...