Tuesday, July 28, 2015


''Spam in a can''


The problem of prolonged, autonomous human existence in a space suit

(USSR, 1966)

''The authors consider the feasibility of maintaining the thermal balance of a cosmonaut in a space suit utilizing only physiological perspiration. Two series of tests were conducted in a thermal pressure chamber to determine the degree of intensity of physiological heat control and the performance capacity and the general condition of an organism. On the basis of the experiments it is asserted that for a period of 3 to 4 hours a man in a space suit is able to dissipate by the evaporation of perspiration 200-220 kcal/hr of heat produced either internally or externally. Thermal load is decreased, the duration a man can withstand such condition is greatly increased.''

https://archive.org/details/nasa_techdoc_19670017246

Tuesday, July 21, 2015


''In time, those Unconscionable Maps no longer satisfied...''


''If we are to discuss the limitations of simulation, we must define what simulation is. The literature in the field is of limited usefulness in tying down exactly what the term describes. The more recent the document, the more likely it is that the author will quote several alternate definitions, reject them all and proceed to develop his own definition which is more general and less restricting than any of those given. The use of the term "simulation" seems to outgrow even the broadest definition. I will not attempt a precise definition, but as an alternate will suggest that the history of the development of simulation as we know it today may be a less rigorous, but more satisfying way to describe simulation. The origins of simulation are generally traced to the work of Von Neuman and Ulman in the late 1940's. They coined the term "Monte Carlo Analysis" to describe a technique whereby essentially deterministic problems, too expensive or complex to solve analytically, could be solved by treating them as stochastic problems.''

The trend in simulation (Computers and Automation- January 1968, page 44)

https://archive.org/details/bitsavers_computersA_9729690


Monday, July 20, 2015


''Terminate, with extreme prejudice''


''SAIGON. - In a nondescript white concrete-block building on the outskirts of this capital city, an International Business Machines Corp. Model 1430 computer runs 24 hours a day grinding out one of this war-torn country's most valuable products: Military intelligence. The building houses one of four intelligence centers scattered around Saigon. Using automatic data processing equipment, this intelligence setup - the biggest operated by the United States outside Washington and the biggest ever used against a single enemy - is now handling a massive assortment of facts and figures aimed at winning the Vietnam war. More than 100,000 separate items are being added to the system's computerized files each month; a 60-ton haul of enemy documents seized last January is still yielding valuable information. Tens of thousands of IBM punch cards help keep tabs on the foe; they bear detailed identification of captured Communists and Vietcong suspects.''

COMPUTERIZED INTELLIGENCE NETWORK IN SOUTH VIETNAM 
Computers and Automation 1967/08 page 34

https://archive.org/details/bitsavers_computersA_7199056

Friday, July 17, 2015


''Slouching towards Bethlehem''


''In presenting this paper at Bletchley Park, there is a unique opportunity to provide an assessment of the extent and limits of the electronic innovations associated with the ENIAC project (Project PX) at the University of Pennsylvania. While it is well known that John Mauchly, J. Presper Eckert and other ENIAC project engineers made several basic contributions to electronic computing, this history has been grossly simplified in broad-level historical accounts. Getting a device with over 17,000 vacuum tubes to operate in an unfamiliar digital domain required a wide array of innovations. By looking at the diverse forms of knowledge embedded in the scientific and engineering practices of those who found themselves at the Moore School, it is possible to document more fully the synthesis of ideas that was coterminous with the invention of the ENIAC.''

The Circulation of Knowledge and the Origins of the ENIAC: (Or, What Was and Was Not Innovative About the American Wartime Project) Atsushi Akera 

http://ethw.org/images/b/be/Akera.pdf

Saturday, July 11, 2015


''Like a thief in the night''


''Special reconnaissance (SR) is defined as reconnaissance and surveillance actions conducted by Special Forces (SF) to obtain or verify, by visual observation or other collection methods, information concerning the capabilities, intentions, and activities of an actual or potential enemy or to secure data concerning the meteorologic, hydrographic, geographic, or demographic characteristics of a particular area. It includes target acquisition, area assessment, and poststrike reconnaissance.''

FM 31-20-5 Special Forces Reconnaissance Tactics,Techniques,& Procedures (1990)

https://archive.org/details/milmanual-fm-31-20-5-special-reconnaissance-tactics-techniques--proced

Friday, July 10, 2015


''Virtual vertigo''


''This Thesis was aimed at studying the effects of time delay in the visual feedback loop of a man-machine system. A one-dimensional, step-type input, pursuit tracking experiment was developed to study these effects with transmission-type delays of zero to ten seconds. Thirty-six subjects participated in a series of tests that covered: seven different delays, two different levels of course complexity for each delay, learning, and open-loop conditions. It was found that tracking performance deteriorates non-linearly with increases in delay and that the magnitude of this performance degradation is a function of course complexity.'' 

Effects of time delay in the visual feedback loop of a human-machine system (1966)



''Far out, dudes!''


''In August 1997, NASA sponsored a 3-day workshop to assess the prospects emerging from physics that may eventually lead to creating propulsion breakthroughs -the kind of breakthroughs that could revolutionize space flight and enable human voyages to other star systems. Experiments and theories    were discussed regarding the coupling of gravity and electromagnetism, vacuum fluctuation energy, warp drives and wormholes, and superluminal quantum tunneling.''

NASA Breakthrough Propulsion Physics Workshop Proceedings (1999)