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John Leonard Orr (born 1948 or 1949) [1] is an American convicted serial arsonist, mass murderer and former firefighter.A fire captain and arson investigator in Glendale, California, Orr was convicted of serial arson and four counts of murder; [2] he is believed to have set nearly 2,000 fires in a thirty-year arson spree, most of them between 1984 and 1991, making him the most prolific serial ...
FreeCAD is a general-purpose parametric 3D computer-aided design (CAD) modeler and a building information modeling (BIM) software application with finite element method (FEM) support. [2] It is intended for mechanical engineering product design but also expands to a wider range of uses around engineering, such as architecture or electrical ...
3D rendering of spoons in CAD software. In 1981, the key products were the solid modeling packages—Romulus (ShapeData) and Uni-Solid (Unigraphics) based on PADL-2—and the surface modeler CATIA (Dassault Systemes). Autodesk was founded in 1982 by John Walker, which led to the two-dimensional system AutoCAD. [22]
A man using AutoCAD 2.6 to digitize a drawing of a school building. AutoCAD was derived from a program that began in 1977, and then released in 1979 [5] called Interact CAD, [6] [7] [8] also referred to in early Autodesk documents as MicroCAD, which was written prior to Autodesk's (then Marinchip Software Partners) formation by Autodesk cofounder Michael Riddle.
He remained a professor there until 1981, and was a professor emeritus thereafter. Of him Billy Graham wrote, "Dr. J. Edwin Orr, in my opinion, is one of the greatest authorities on the history of religious revivals in the Protestant world." [6] Orr wrote numerous books, many of them histories of evangelical revivals, and a number of hymns.
A 3D CAD model. Computer-aided design ( CAD) is the use of computers (or workstations) to aid in the creation, modification, analysis, or optimization of a design. [ 1]: 3 This software is used to increase the productivity of the designer, improve the quality of design, improve communications through documentation, and to create a database for ...
v. t. e. In technical drawing and computer graphics, a multiview projection is a technique of illustration by which a standardized series of orthographic two-dimensional pictures are constructed to represent the form of a three-dimensional object. Up to six pictures of an object are produced (called primary views ), with each projection plane ...
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