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The Gilder Lehrman Institute of American History was founded in New York City by businessmen-philanthropists Richard Gilder and Lewis E. Lehrman in 1994 to promote the study and interest in American history. [1] The Institute serves teachers, students, scholars, and the general public. Its activities include the following:
Edith Clarke invents the "Clarke calculator", a graphical calculator for solving line equations involving hyperbolic function, allowing electrical engineers to simplify calculations for inductance and capacity in power transmission lines [13] 1924: Japanese engineer Kenjiro Takayanagi began a research program on electronic television. [14] 1925
Breakthrough Software was a software company based in Novato, California. Breakthrough developed and sold the Time Line project management software for PC DOS computers, releasing the first version in 1984, [ 1 ] and version 2.0 in July, 1985. [ 2 ]
For the Gilder Lehrman Collection, Lewis Lehrman and Richard Gilder collected historical documents in order to place them into a collection where they would be available to scholars and the public. First put on deposit at the Morgan Library, the Gilder Lehrman Collection is now on deposit at the New-York Historical Society. By 2006, the GLC had ...
Timeline of computing presents events in the history of computing organized by year and grouped into six topic areas: predictions and concepts, first use and inventions, hardware systems and processors, operating systems, programming languages, and new application areas.
With Lewis Lehrman he was a co-founder (1994) and trustee of the Gilder Lehrman Institute. Gilder worked together with George Soros in 1974 to revitalize Central Park. Their efforts led to the creation of the Central Park Conservancy six years later, [2] and he served as a trustee of that organization. [6]
First formulation of Gram-Schmidt orthogonalisation by Laplace, [6] to be further improved decades later. [7] [8] [9] [10]Babbage in 1822, began work on a machine made to compute/calculate values of polynomial functions automatically by using the method of finite differences.
The Gilder Lehrman Center for the Study of Slavery, Resistance and Abolition, Yale University; Online Videos: David W. Blight, The Civil War and Reconstruction Era, 1845–1877 Archived 2012-10-05 at the Wayback Machine, Open Yale Courses, 27 lectures, recorded Spring 2008, Yale University. Available free of charge via iTunes U.