"(Henry) (C.) (Beck)" returned 18 hits

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Author: Claudius Ptolemy (c.85-c.165)
Map projections of a spherical earth and use of latitude and longitude to characterize position (first display of longitude)
Mediaitems: Ptolemy's world map, republished in 1482, Ptolemy portrait , Ptolemy world map description, with images, Ptolemy's world map, description and high-res image, Ptolemy history, The world according to Ptolemy
Category: Cartography
Author: Abraham Cresques (1325-1387)
Catalan Atlas, an exquisitely beautiful visual cosmography, perpetual calendar, and thematic representation of the known world
Mediaitems: Catalan Atlas, detail: Europe, North Africa, BNF listing of images from the Catalan Atlas, BNF description of Atlas catalan (BNF, ESP 30), Detailed description of Catalan Atlas and Abraham Cresques (Henry-Davis), Carte de l'Europe, de l'Afrique du Nord et du Proche-Orient, BNF, ESP 30, Carte de l'Europe, de l'Afrique du Nord et du Proche-Orient, BNF, ESP 30
Category: Cartography
Author: John Napier (1550-1617)
Invention of logarithms, and the first published tables of logarithms.
Mediaitems: Two pages from Napier's table of logarithms, Diagram of spherical triangles from, Napier portrait, Biography of Napier, Linear and logarithmic scales, English translation of John Napier : Mirifici Logarithmorum Canonis Descriptio...by Ian Bruce
Category: Statistics & Graphics
Author: Joseph Priestley (1733-1804)
Historical timeline (life spans of 2,000 famous people, 1200 B.C. to 1750 A.D.), quantitative comparison by means of bars
Mediaitems: Priestley's specimen chart of biography, Priestley biography, Priestley portrait
Category: Cartography
Author: Charles de Fourcroy (1766-c.1810)
Use of geometric, proportional figures (squares) to compare demographic quantities by superposition, an early "tableau graphique''
Mediaitems: de Fourcroy's proportional squares, de Fourcroy's proportional squares, Description of de Fourcroy, from Palsky
Category: Statistics & Graphics
Author: Henry Drury Harness (1804-1883)
First published flow maps, showing transportation by means of shaded lines, widths proportional to amount (passengers)
Mediaitems: Harness portrait, Harness flow map of transportation of passengers in Ireland
Category: Cartography
Authors: Pierre-Fran├žois Verhulst (1804-1849)
Development of the logistic curve, $ y = k / (1 + C e^)$, to describe the growth of human populations
Mediaitems: Verhulst bio, Pierre-Francois Verhulst et la loi logistique de la population, Verhulst portrait
Category: Statistics & Graphics
Author: Henry Pickering Bowditch (1840-1911)
Extensive statistical study of 24,500 children to improve school practice; early ideas of correlation and regression by quoting the "measure of stoutness'', the ratio of annual increase in pounds weight to annual increase in inches height. Includes six charts, showing curvilinear regresions.
Mediaitems: Early regression of height on weight for English schoolboys, Early regression curves of height on weight for Boston schoolboys, Bowditch portrait
Category: Statistics & Graphics
Authors: Henry Norris Russell (1877-1957) & Ejnar Hertzsprung (1873-1967)
The Hertzsprung-Russell diagram, a log-log plot of luminosity as a function of temperature for stars, used to explain the changes as a star evolves. It provided an entirely new way to look at stars, and laid the groundwork for modern stellar physics and evolution, developed independently by
Mediaitems: Russell portrait, HR Diagram tutorial, Hertzsprung biography, Russell biography, Hertzprung's first 1911 graphs, early Hertzsprung-Russell diagram, modern Hertzsprung-Russell diagram
Category: Statistics & Graphics
Author: Henry Gwyn Jeffreys Moseley (1887-1915)
Discovery of the concept of atomic number, based largely on graphical analysis (a plot of serial numbers of the elements vs. square root of frequencies from X-ray spectra) The linear relations showed that the periodic table was explained by atomic number rather than, as had been supposed, atomic weight, and predicted the existence of several yet-undiscovered elements
Mediaitems: Moseley portrait, Henry Mosely biography, Moseley graph image, Text of Moseley's article, with scanned graphs
Category: Statistics & Graphics
Author: Henry Laurence Gantt (1861-1919)
Gantt chart, designed to show scheduled and actual progress of projects
Mediaitems: Gantt chart history, Gantt Project
Category: Statistics & Graphics
Authors: A. C. Haskell & Karl G. Karsten & A. R. Palmer
Numerous textbooks on graphics, describing principles of graphical presentation of numerical information (published at a rate of about two each year), e.g.,