Background Abstract: The proposal herein outlined sets forth the exact method for control of an aircraft bomb, classified as Barrage Type, intended to be remotely flown, thence unerringly guided from a ground control position to its ultimate target. It is suggested to also consider it as an artillery supplement in the laying down of a barrage. In several different ways it is better for long-range intensive barrage than the huge rifles of artillery. It is contemplated to employ that part of the radio spectrum between 70 and 200 megacycles or thereabouts. This document, from 1940, was listed with no title,…
Author: John Greenewald
Background This report contains an assessment of the state-of-the-art of modeling and analysis for civil preparedness and management of the post-attack U.S. *economy. This evaluation was derived from a large volume of related literature. A selected, annotated bibliography of over 100 entries follows a state-of-the-art assessment. Literature areas reviewed included historical disasters, industry studies, post-attack viability, survival and economic recovery, and civil defense, both U.S. and Soviet. Some literature on modeling methods was researched. Modeling methods covered were input/output, econometrics, optimization and system dynamics. Analysis of the literature and current state-of-the-art revealed several key management aspects of the post-attack economy.…
Background A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission or a combination of fission and fusion. Both reactions release vast quantities of energy from relatively small amounts of matter; a modern thermonuclear weapon weighing little more than a thousand kilograms can produce an explosion comparable to the detonation of more than a billion kilograms of conventional high explosive. Even small nuclear devices can devastate a city. Nuclear weapons are considered weapons of mass destruction, and their use and control has been a major aspect of international policy since their debut. A…
Background The Old Post Office Pavilion, historically known as the Old Post Office and Clock Tower, located at 1100 Pennsylvania Avenue NW in Washington, D.C. was completed in 1899, and is a contributing property to the Pennsylvania Avenue National Historic Site. It was used as the city’s main post office until 1914. It functioned primarily as an office building afterward, and was nearly torn down during the construction of the Federal Triangle complex in the 1920s. It was nearly demolished again in the 1970s to make way for completion of the Federal Triangle. Major renovations occurred in 1976 and 1983.…
Background The Year 2000 problem (also known as the Y2K problem, the millennium bug, the Y2K bug, or simply Y2K) was a notable computer bug resulting from the practice in early computer program design of representing the year with two digits. This caused some date-related processing to operate incorrectly for dates and times on and after January 1, 2000 and on other critical dates which were billed “event horizons”. Without corrective action, long-working systems would break down when the “…97, 98, 99…” ascending numbering assumption suddenly became invalid. Companies and organizations world-wide checked, fixed, and upgraded their computer systems. The…