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The California Job Case was a compartmentalized box for printing in the 19th century, sizes corresponding to the commonality of letters. The frequency of letters in text has been studied for use in cryptanalysis, and frequency analysis in particular, dating back to the Arab mathematician al-Kindi (c. AD 801–873 ), who formally developed the method (the ciphers breakable by this technique go ...
An average 70 kg human body is about 0.01% heavy metals (~7 g, equivalent to the weight of two dried peas, with iron at 4 g, zinc at 2.5 g, and lead at 0.12 g comprising the three main constituents), 2% light metals (~1.4 kg, the weight of a bottle of wine) and nearly 98% nonmetals (mostly water).
Latin Capital Letter D with dot above 0649 ISO 8859-14: U+1E0B ḋ Latin Small Letter D with dot above 0650 U+1E0C Ḍ Latin Capital Letter D with dot below: U+1E0D ḍ Latin Small Letter D with dot below U+1E0E Ḏ Latin Capital Letter D with line below U+1E0F ḏ Latin Small Letter D with line below U+1E10 Ḑ Latin Capital Letter D with cedilla
Except for the early prefixes of kilo-, hecto-, and deca-, the symbols for the prefixes for multiples are uppercase letters, and those for the prefixes for submultiples are lowercase letters. [8] All of the metric prefix symbols are made from upper- and lower-case Latin letters except for the symbol for micro, which is uniquely a Greek letter ...
Diagram of a cast metal sort.a face, b body or shank, c point size, 1 shoulder, 2 nick, 3 groove, 4 foot.. In professional typography, [a] the term typeface is not interchangeable with the word font (originally "fount" in British English, and pronounced "font"), because the term font has historically been defined as a given alphabet and its associated characters in a single size.
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Block letters may also be used as to refer to block capitals, which means writing in all capital letters or in large and small capital letters, imitating the style of typeset capital letters. [2] However, in at least one court case involving patents , the term "block letters" was found to include both upper and lower case .
In North America, a standard ton of refrigeration is 12,000 BTU/h (3,517 W). "The heat absorption per day is approximately the heat of fusion of 1 ton of ice at 32 °F (0 °C)." [ 30 ] This is approximately the power required to melt one short ton (2,000 lb or 907 kg) of ice at 0 °C (32 °F) in 24 hours, thus representing the delivery of 1 ...