"Unknown" returned 16 hits

Sort results by: date | relevance
1
Author: Unknown
The Antikythera Mechanism is a unique Greek geared device, constructed around the end of the second century bc. It is known that it calculated and displayed celestial information, particularly cycles such as the phases of the moon and a luni-solar calendar.
Mediaitems: Antikythera, Antikythera mechanism, Antikythera front view
Category: Technology
2
Author: Unknown
Invention of parchment. Parchment was superior to papyrus because it could be printed on both sides and folded.
Mediaitems: History of parchment, History of parchment in Wikipedia
Category: Technology
3
Author: Unknown
The first route map ("carte routière''), showing the whole of the Roman world, a map from Vienna, through Italy, to Carthage; painted on parchment, 34 cm. high, by 7 m. in length. (Named the table of Peutinger, after a 16th century German collector.)
Mediaitems: Peutinger map, Peutinger map images, Peutinger map background
Category: Cartography
4
Author: Unknown
Earliest known attempt to show changing values graphically (positions of the sun, moon, and planets throughout the year)
Mediaitems: Planetary movements diagram, Planetary movements icon
Category: Statistics & Graphics
5
Author: Unknown
Tables of empirical data, published tables of numbers begin to appear. "Die Tabellen-Statistik,'' as a branch of statistics devoted to the numerical description of facts
Category: Statistics & Graphics
6
Authors: Johanes Tobias Mayer (1723-1762) & Rogerius Josephus Boscovich (1711-1787)
Beginnings of the estimation of $m$ unknown quantities from $n$ emipirical equations (where $n > m$), taking account of the possibility of errors in the observations (later supplanted by the method of least squares)
Mediaitems: Boscovich portrait, Mayer biography, Boscovich biography
Category: Statistics & Graphics
7
Author: Unknown
Invention of lithographic technique for printing of maps and diagrams ("At the time the effect of lithography ... was as great as has been the introduction [of the Xerox machine]'' cite[p. 57]{Robinson:1982}) (published in several translations, 1818--19)
Mediaitems: Senefelder portrait, Senefelder biography, History of lithography and portrait
Category: Technology
8
Author: Unknown
Statistical graphics used in a lawsuit. (Reported by Ernst Engel at the 7th meetings of the International Statistical Congress, 1869, The Hague
Category: Statistics & Graphics
9
Author: Unknown
Discussion of standardization and classification of graphical methods at the Third International Statistical Congress
Mediaitems: The debate on the standardization of statistical maps and diagrams (1857-1901), Cybergeo, No. 85
Category: Other
10
Author: Unknown
Exhibition display of graphs and cartograms. Third International Statistical Congress
Category: Statistics & Graphics
11
Author: Unknown
Congressional appropriation for graphical treatment of statistics
Category: Other
12
Author: Unknown
Patent issued on logarithmic paper (reported to the British Association for the Advancement of Science, in 1898). Also called "semi-log,'' "arith-log'' paper and "ratio charts''
Mediaitem: Graphing on log paper
Category: Technology
13
Author: Unknown
Statistical diagrams begin to appear regularly in USA textbooks (graphs of temperature, population in texts of arithmetic, algebra)
Category: Statistics & Graphics
14
Author: Unknown
Standard statistical symbols (Neurath's Isotype method) established by government decree (for schools, public posters, etc.)
Category: Statistics & Graphics
15
Author: Unknown
Lapse of interest in statistical graphics, as concern with formal, "precise'', and numerical methods gained ascendancy (the modern "dark ages'' of statistical graphics)cite{FriendlyDenis:2001:valois}.
Category: Statistics & Graphics
16
Author: Unknown
The oldest known map? (There are several claimants for this honor.)
Mediaitems: Konya town map, Town map, with an errupting volcano (Hasan Daö?) and the Konya plain, An extended description of the most ancient maps
Category: Cartography