They are in fact not stones at all; rather, they consist of an intermetallic compound, AuAl_2, which is also known to the microelectronic community as the source of the dreaded purple plague.Robert W.CahnNatureCahn, Robert W. " A precious stone that isn't ", Nature, vol. 396, Dec. ...
Neither the turmoil of war nor the welter of social unrest has prevented explorers of uncharted seas from crossing the bar and bringing their argosies to the quayside, where fruits and seeds, rich ores and precious stones have been piled in profusion for the creation of wealth, the comforts ...
3D Feldspar K[(AlO2)(SiO2)3] Glass, ceramics, semiprecious stones Zeolites Na13Ca11Mg9KAl55Si137O384 Water softener, gas separation and purification Molecular sieves (A) Na12[(AlO2)12(SiO2)12·xH2O] Small-molecule (4 Å) absorber (e.g., H2O) Molecular sieves (X) Na86[(AlO2)86(...
Table 2.Characterization of typical informal sector activity premise (ISAPs) ISAPsActivity characterization Hair and beauty salonsHair care, beauty care, skin care, hair dressing. Small-scale/artisanal miningQuarrying of construction materials; mining of precious stones, gold, etc. ...
symbolizes both the ovary and the precious ovarian reserve. The character strings comprising A, T, C, and G inside the ovary represent the genome sequences, with the highlighted letters indicating genetic variants. Ovarian reserve refers to the total number of healthy oocytes remaining in a woman...
of gold, many spices, and precious stones" (2 Chronicles 9:9). The people of Israel described manna bread as being “white like coriander seeds” (Exodus 16:31). The New Testament refers to a religious tithing of “a tenth of your spices - mint, dill, and cumin” (Matthew 23:23)...
novelette"The Sharing of Flesh"Poul Anderson short story"The Beast That Shouted Love at the Heart of the World"Harlan Ellison 1970novelThe Left Hand of DarknessUrsula K. Le Guin novella"Ship of Shadows"Fritz Leiber short story"Time Considered as a Helix of Semi-Precious Stones"Samuel R. Dela...
I didn’t mind reading them, but at my age, they are a waste of my precious reading time – a commodity that’s dwindling. They were fun to look up and read because of Tenn’s anecdote about how and why they got written, but that’s about all. When I’m restless, I still ...
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Germs of a theory, though in their present condition they are vague and formless … may be said to resemble stones in the quarry, rough and unhewn, but which may some time become corner-stones, columns, and entablatures in the future edifice. ...