GSFC specification electronic data processing magnetic recording tape

The design requirements are given for magnetic oxide coated, electronic data processing tape, wound on reels. Magnetic recording tape types covered by this specification are intended for use on digital tape transports using the Non-Return-to-Zero-change-on-ones (NRZI) recording method for recording densities up to and including 800 characters per inch (cpi) and the Phase-Encoding (PE) recording method for a recording density of 1600 cpi

The History of the iPad

The purpose of this paper is to review the history of the iPad and its influence over contemporary computing. Although the iPad is relatively new, the tablet computer is having a long and lasting affect on how we communicate. With this essay, I attempt to review the technologies that emerged and converged to create the tablet computer. Of course, Apple and its iPad are at the center of this new computing movement

The Anchor, Volume 94.07: October 29, 1981

The Anchor began in 1887 and was first issued weekly in 1914. Covering national and campus news alike, Hope College’s student-run newspaper has grown over the years to encompass over two-dozen editors, reporters, and staff. For much of The Anchor\u27s history, the latest issue was distributed across campus each Wednesday throughout the academic school year (with few exceptions). As of Fall 2019 The Anchor has moved to monthly print issues and a more frequently updated website. Occasionally, the volume and/or issue numbering is irregular

The Chronicle [April 12, 1974]

The Chronicle, April 12, 1974https://repository.stcloudstate.edu/chron/2801/thumbnail.jp

On the thermoelastic analysis of solar cell arrays and related material properties

Accurate prediction of failure of solar cell arrays requires accuracy in the computation of thermally induced stresses. This was accomplished by using the finite element technique. Improved procedures for stress calculation were introduced together with failure criteria capable of describing a wide range of ductile and brittle material behavior. The stress distribution and associated failure mechanisms in the N-interconnect junction of two solar cell designs were then studied. In such stress and failure analysis, it is essential to know the thermomechanical properties of the materials involved. Measurements were made of properties of materials suitable for the design of lightweight arrays: microsheet-0211 glass material for the solar cell filter, and Kapton-H, Kapton F, Teflon, Tedlar, and Mica Ply PG-402 for lightweight substrates. The temperature-dependence of the thermal coefficient of expansion for these materials was determined together with other properties such as the elastic moduli, Poisson's ratio, and the stress-strain behavior up to failure

The Silent Arms Race: The Role of the Supercomputer During the Cold War, 1947-1963

One of the central features of the Cold War is the Arms Race. The United States and the Union of Soviet Socialist republics vied for supremacy over the globe for a fifty-year period in which there were several arms races; atomic weapons, thermonuclear weapons and various kinds of conventional weapons. However, there is another arms race that goes unsung during this period of history and that is in the area of supercomputing. The other types of arms races are taken for granted by historians and others, but the technological competition between the superpowers would have been impossible without the historically silent arms race in the area of supercomputers. The construction of missiles, jets as well as the testing of nuclear weapons had serious implications for international relations. Often perception is more important than fact. Perceived power maintained a deterrent effect on the two superpowers. If one superpower suspected that they, in fact, had an advantage over the other then the balance of power would be upset and more aggressive measures might have been taken in various fronts of the conflict, perhaps leading to war. Due to this, it was necessary to maintain a balance of power not only in weapons but in supercomputing as well. Considering the role that the computers played, it is time for closer historical scrutiny

Montana Kaimin, April 25, 1968

Student newspaper of the University of Montana, Missoula.https://scholarworks.umt.edu/studentnewspaper/5555/thumbnail.jp

Index to NASA Tech Briefs, January - June 1966

Index to NASA technological innovations for January-June 196

Montana Kaimin, April 25, 1968

Student newspaper of the University of Montana, Missoula.https://scholarworks.umt.edu/studentnewspaper/5555/thumbnail.jp