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The light is refracted at the surface of the raindrop. When this light hits the back of the raindrop, some of it is reflected off the back. When the internally reflected light reaches the surface again, once more some is internally reflected and some is refracted as it exits the drop.
Bromocresol purple (BCP) or 5′,5″-dibromo-o-cresolsulfophthalein, is a dye of the triphenylmethane family (triarylmethane dyes) and a pH indicator. It is colored yellow below pH 5.2, and violet above pH 6.8. In its cyclic sulfonate ester form, it has a pK a value of 6.3, and is usually prepared as a 0.04% aqueous solution. [1]
Seeing little sense in a principle requiring intelligent life to emerge while remaining indifferent to the possibility of its eventual extinction, Barrow and Tipler propose the final anthropic principle (FAP): Intelligent information-processing must come into existence in the universe, and, once it comes into existence, it will never die out. [66]
A leaf (pl.: leaves) is a principal appendage of the stem of a vascular plant, [1] usually borne laterally aboveground and specialized for photosynthesis.Leaves are collectively called foliage, as in "autumn foliage", [2] [3] while the leaves, stem, flower, and fruit collectively form the shoot system. [4]
This is because long-wavelength (red) light is scattered less than blue light. The red light reaches the observer's eye, whereas the blue light is scattered out of the line of sight. Other colours in the sky, such as glowing skies at dusk and dawn. These are from additional particulate matter in the sky that scatter different colors at ...
In Buddhism, saṃsāra is the "suffering-laden, continuous cycle of life, death, and rebirth, without beginning or end". [2] [10] In several suttas of the Samyutta Nikaya's chapter XV in particular it's said "From an inconstruable beginning comes transmigration.
Purple Cow was itself marketed through some of the techniques that Godin describes in his book. The first, self-published edition came packaged in a milk carton and was sold for just shipping and handling charges. The cover is purple and white, and the words are printed sideways. [2]
Night vision is the ability to see in low-light conditions, either naturally with scotopic vision or through a night-vision device. Night vision requires both sufficient spectral range and sufficient intensity range .