Coffee has initially been a food – chewed, not sipped. Early African tribes consume coffee by grinding the berries together, adding some animal fat, and rolling the treats into tiny edible energy balls.
DIFFRACTION
diffraction
(noun) when light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bands
Source: WordNet® 3.1
Etymology
Noun
diffraction (countable and uncountable, plural diffractions)
(quantum mechanics) The breaking up of an electromagnetic wave as it passes a geometric structure (e.g. a slit), followed by reconstruction of the wave by interference.
Source: Wiktionary
Dif*frac"tion, n. Etym: [Cf. F. diffraction.] (Opt.)
Definition: The deflection and decomposition of light in passing by the edges of opaque bodies or through narrow slits, causing the appearance of parallel bands or fringes of prismatic colors, as by the action of a grating of fine lines or bars. Remarked by Grimaldi (1665), and referred by him to a property of light which he called diffraction. Whewell. Diffraction grating. (Optics) See under Grating.
– Diffraction spectrum. (Optics) See under Spectrum.
Source: Webster’s Unabridged Dictionary 1913 Edition
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3 March 2025
STAND
(verb) hold one’s ground; maintain a position; be steadfast or upright; “I am standing my ground and won’t give in!”
Coffee Trivia
