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Accounting Token
Number systems have progressed from the use of fingers and tally marks, perhaps more than 40,000 years ago, to the use of sets of glyphs able to represent any conceivable number efficiently. The earliest known unambiguous notations for numbers emerged in Mesopotamia about 5000 or 6000 years ago. Prehistory Counting initially involves the fingers, given that digit-tallying is common in number systems that are emerging today, as is the use of the hands to express the numbers five and ten. In addition, the majority of the world's number systems are organized by tens, fives, and twenties, suggesting the use of the hands and feet in counting, and cross-linguistically, terms for these amounts are etymologically based on the hands and feet. Finally, there are neurological connections between the parts of the brain that appreciate quantity and the part that "knows" the fingers (finger gnosia), and these suggest that humans are neurologically predisposed to use their hands in coun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Numbers
A number is a mathematical object used to count, measure, and label. The original examples are the natural numbers 1, 2, 3, 4, and so forth. Numbers can be represented in language with number words. More universally, individual numbers can be represented by symbols, called ''numerals''; for example, "5" is a numeral that represents the number five. As only a relatively small number of symbols can be memorized, basic numerals are commonly organized in a numeral system, which is an organized way to represent any number. The most common numeral system is the Hindu–Arabic numeral system, which allows for the representation of any number using a combination of ten fundamental numeric symbols, called digits. In addition to their use in counting and measuring, numerals are often used for labels (as with telephone numbers), for ordering (as with serial numbers), and for codes (as with ISBNs). In common usage, a ''numeral'' is not clearly distinguished from the ''number'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Universal Book Of Mathematics
''The Universal Book of Mathematics: From Abracadabra to Zeno's Paradoxes'' (2004) is a bestselling book by British author David Darling. Summary The book is presented in a dictionary format. The book is divided into headwords, which, as the title suggests, run from Abracadabra to Zeno's paradoxes. The book also provides relevant diagrams and illustrations. Errors The first edition of the book had several errors which were fixed in later editions. Several famous scientists have sent in corrections to the author of the book. These include Warren Johnson and Freeman Dyson. Reception The book has been praised by BoingBoing ''Boing Boing'' is a website, first established as a zine in 1988, later becoming a group blog. Common topics and themes include technology, futurism, science fiction, gadgets, intellectual property, Disney, and left-wing politics. It twice wo ... and British newspaper '' The Independent''. Problems and Puzzles mentioned in the book have been discuss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulla (seal)
A bulla ( Medieval Latin for "a round seal", from Classical Latin ''bulla'', "bubble, blob"; plural bullae) is an inscribed clay or soft metal (such as lead or tin) or bitumen or wax token used in commercial and legal documentation as a form of authentication and for tamper-proofing whatever is attached to it (or, in the historical form, contained in it). In their oldest attested form, as used in the ancient Near East and the Middle East of the 8th millennium BC onwards, bullae were hollow clay balls that contained other smaller tokens that identified the quantity and types of goods being recorded. In this form, bullae represent one of the earliest forms of specialization in the ancient world, and likely required skill to create. From about the 4th millennium BC onwards, as communications on papyrus and parchment became widespread, bullae evolved into simpler tokens that were attached to the documents with cord, and impressed with a unique sign (i.e., a seal) to provide the same ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denise Schmandt-Besserat
Denise Schmandt-Besserat (born August 10, 1933 in Ay, Marne, France) is a French-American archaeologist and retired professor of art and archaeology of the ancient Near East. She spent much of her professional career as a professor at the University of Texas.Austin American-Statesman, Michael Barnes, ''The Austinite who discovered origin of writing'', 3 July 2016, p. D1 She is best known for her work on the history and invention of writing. While her research is highly cited, it has been controversial among scholars. The controversies, as detailed below, concern the interpretation of early tokens, particularly the complex ones; however, the idea that writing emerged out of the counting, cataloging, management, and transactions of agricultural produce has been largely accepted. Early life and education Denise Besserat was born into a family of lawyers and winemakers. Her early education was at the hands of tutors. Her family evacuated to southern France during World War II, after ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexagesimal
Sexagesimal, also known as base 60 or sexagenary, is a numeral system with sixty as its base. It originated with the ancient Sumerians in the 3rd millennium BC, was passed down to the ancient Babylonians, and is still used—in a modified form—for measuring time, angles, and geographic coordinates. The number 60, a superior highly composite number, has twelve factors, namely 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60, of which 2, 3, and 5 are prime numbers. With so many factors, many fractions involving sexagesimal numbers are simplified. For example, one hour can be divided evenly into sections of 30 minutes, 20 minutes, 15 minutes, 12 minutes, 10 minutes, 6 minutes, 5 minutes, 4 minutes, 3 minutes, 2 minutes, and 1 minute. 60 is the smallest number that is divisible by every number from 1 to 6; that is, it is the lowest common multiple of 1, 2, 3, 4, 5, and 6. ''In this article, all sexagesimal digits are represented as decimal numbers, except where otherwise noted. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zagros
The Zagros Mountains ( ar, جبال زاغروس, translit=Jibal Zaghrus; fa, کوههای زاگرس, Kuh hā-ye Zāgros; ku, چیاکانی زاگرۆس, translit=Çiyakani Zagros; Turkish: ''Zagros Dağları''; Luri: ''Kuh hā-ye Zāgros'' ''کویا زاگرس'') are a long mountain range in Iran, northern Iraq, and southeastern Turkey. This mountain range has a total length of . The Zagros mountain range begins in northwestern Iran and roughly follows Iran's western border while covering much of southeastern Turkey and northeastern Iraq. From this border region, the range continues to the southeast under also the waters of the Persian Gulf. It spans the southern parts of the Armenian highland, the whole length of the western and southwestern Iranian plateau, ending at the Strait of Hormuz. The highest point is Mount Dena, at . Geology The Zagros fold and thrust belt was mainly formed by the collision of two tectonic plates, the Eurasian Plate and the Arabian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ganj Dareh
Ganj Dareh ( Persian: تپه گنج دره; "Treasure Valley" in Persian,Smith, Philip E.LArchitectural Innovation and Experimentation at Ganj Dareh, Iran '' World Archaeology'', Vol. 21, No. 3 (February, 1990), pp. 323-335 or "Treasure Valley Hill" if tepe/tappeh (hill) is appended to the name) is a Neolithic settlement in western Iran. It is located in the Harsin County in east of Kermanshah Province, in the central Zagros Mountains. Research history First discovered in 1965, it was excavated by Canadian archaeologist, Philip Smith during the 1960s and 1970s, for four field seasons. The oldest settlement remains on the site date back to ca. 10,000 years ago, and have yielded the earliest evidence for goat domestication in the world.What's Bred in the Bone '' |
Tell Abu Hureyra
Tell Abu Hureyra ( ar, تل أبو هريرة) is a prehistoric archaeological site in the Upper Euphrates valley in Syria. The tell was inhabited between 13,000 and 9,000 years ago in two main phases: Abu Hureyra 1, dated to the Epipalaeolithic, was a village of sedentary hunter-gatherers; Abu Hureyra 2, dated to the Pre-Pottery Neolithic, was home to some of the world's first farmers. This almost continuous sequence of occupation through the Neolithic Revolution has made Abu Hureyra one of the most important sites in the study of the origins of agriculture. The site is significant because the inhabitants of Abu Hureyra started out as hunter-gatherers but gradually moved to farming, making them the earliest known farmers in the world. Cultivation started at the beginning of the Younger Dryas period at Abu Hureyra. Evidence uncovered at Abu Hureyra suggests that rye was the first cereal crop to be systematically cultivated. In light of this, it is now believed that the fir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Accountancy Clay Envelope Louvre Sb1932
Accounting, also known as accountancy, is the measurement, processing, and communication of financial and non financial information about economic entities such as businesses and corporations. Accounting, which has been called the "language of business", measures the results of an organization's economic activities and conveys this information to a variety of stakeholders, including investors, creditors, management, and regulators. Practitioners of accounting are known as accountants. The terms "accounting" and " financial reporting" are often used as synonyms. Accounting can be divided into several fields including financial accounting, management accounting, tax accounting and cost accounting. Financial accounting focuses on the reporting of an organization's financial information, including the preparation of financial statements, to the external users of the information, such as investors, regulators and suppliers; and management accounting focuses on the measu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prime Number
A prime number (or a prime) is a natural number greater than 1 that is not a Product (mathematics), product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only ways of writing it as a product, or , involve 5 itself. However, 4 is composite because it is a product (2 × 2) in which both numbers are smaller than 4. Primes are central in number theory because of the fundamental theorem of arithmetic: every natural number greater than 1 is either a prime itself or can be factorization, factorized as a product of primes that is unique up to their order. The property of being prime is called primality. A simple but slow method of checking the primality of a given number n, called trial division, tests whether n is a multiple of any integer between 2 and \sqrt. Faster algorithms include the Miller–Rabin primality test, which is fast but has a small chance of error, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tally Stick
A tally stick (or simply tally) was an ancient memory aid device used to record and document numbers, quantities and messages. Tally sticks first appear as animal bones carved with notches during the Upper Palaeolithic; a notable example is the Ishango Bone. Historical reference is made by Pliny the Elder (AD 23–79) about the best wood to use for tallies, and by Marco Polo (1254–1324) who mentions the use of the tally in China. Tallies have been used for numerous purposes such as messaging and scheduling, and especially in financial and legal transactions, to the point of being currency. Kinds of tallies Principally, there are two different kinds of tally sticks: the single tally and the split tally. A common form of the same kind of primitive counting device is seen in various kinds of prayer beads. Possible palaeolithic tally sticks A number of anthropological artefacts have been conjectured to be tally sticks: *The Lebombo bone, dated between 44,200 and 43,000 years o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz
Quartz is a hard, crystalline mineral composed of silica ( silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation from α-quartz to β-quartz takes place abruptly at . Since the transformation is accompanied by a significant change in volume, it can easily induce microfracturing of ceramics or rocks passing through this temperature threshold. There are many different varieties of quartz, several of which are classified as gemstones. Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Eurasia. Quartz is the mineral defining ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
