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Sir Thomas Gresham. In economics, Gresham's law is a monetary principle stating that "bad money drives out good". For example, if there are two forms of commodity money in circulation, which are accepted by law as having similar face value, the more valuable commodity will gradually disappear from circulation. [1] [2]
Jade. Jade is an umbrella term for two different types of decorative rocks used for jewelry or ornaments. Jade is often referred to by either of two different silicate mineral names: nephrite (a silicate of calcium and magnesium in the amphibole group of minerals), or jadeite (a silicate of sodium and aluminum in the pyroxene group of minerals ...
The larger Sunday crossword, which appears in The New York Times Magazine, is an icon in American culture; it is typically intended to be a "Thursday-plus" in difficulty. [6] The standard daily crossword is 15 by 15 squares, while the Sunday crossword measures 21 by 21 squares.
A crossword (or crossword puzzle) is a word game consisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one letter, while the black squares are used to ...
Nacreous shell worked into a decorative object. Nacre ( / ˈneɪkər / NAY-kər, also / ˈnækrə / NAK-rə ), [ 1] also known as mother of pearl, is an organic–inorganic composite material produced by some molluscs as an inner shell layer. It is also the material of which pearls are composed. It is strong, resilient, and iridescent .
Christ Crucified by Giotto, c. 1310. The True Cross is said to be the real cross that Jesus of Nazareth was crucified on, according to Christian tradition.. It is related by numerous historical accounts and legends that Helena, the mother of Roman Emperor Constantine the Great, recovered the True Cross at the Holy Sepulchre in Jerusalem, when she travelled to the Holy Land in the years 326–328.
Halpern's interest in The Guardian cryptic crossword puzzle began when he was a student in Canterbury, and he wondered if the compilers could possibly be human beings. [2] After completing a puzzle for the first time, he set about creating two of his own to send to his hero John Galbraith Graham , known as "Araucaria", and accomplished this two ...
Precious opal shows a variable interplay of internal colors, and though it is a mineraloid, it has an internal structure. At microscopic scales, precious opal is composed of silica spheres some 150–300 nm (5.9 × 10 −6 –1.18 × 10 −5 in) in diameter in a hexagonal or cubic close-packed lattice.