Search results
Results from the WOW.Com Content Network
Platinum is a chemical element; it has symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanish platina, a diminutive of plata "silver". [7] [8] Platinum is a member of the platinum group of elements and group 10 of the periodic table of ...
Additionally, some alchemists and astrologers believed there was an association, sometimes called a rulership, between days of the week, the alchemical metals, and the planets that were said to hold "dominion" over them. [27] [28] There was some early variation, but the most common associations since antiquity are the following:
The 70th anniversary of any important event can be referred to as a platinum jubilee, although this term is seldom used. Music. a platinum album is an album whose sales figures have reached a certain amount. This threshold differs from market to market—in the United States, a platinum album is one that has sold at least 1,000,000 copies.
The Golden Wand of Medicine: A History of the Caduceus Symbol in Medicine. Contributions in Medical Studies, 35. New York: Greenwood Press. ISBN 0-313-28023-1. Holmyard, Eric J. (1957). Alchemy. Harmondsworth: Penguin Books. OCLC 2080637. Reutter de Rosemont, Louis (1931). Histoire de la pharmacie a travers les ages. Vol. II.
Other precious metals include the platinum group metals: ruthenium, rhodium, palladium, osmium, iridium, and platinum, of which platinum is the most widely traded. [1] The demand for precious metals is driven not only by their practical use but also by their role as investments and a store of value. Historically, precious metals have commanded ...
In the case of Women’s History Month, “this combination of the uplifting mood of white, calming and inspiring effects of purple, and the feelings of harmony and rebirth elicited by the color ...
Scientists believe they can find a meteor blast in Earth’s history strong enough to change the climate and, as a result, the animals that lived on Earth. Evidence may exist for a comet shockwave ...
The Romans conquered the Greeks in the second century B.C. and returned home with lots of pigments and dyes, writes Victoria Finlay in “The Brilliant History of Color in Art.”