Thermally conductive metal wool-silicone rubber material can be used as shock and vibration damper

Bronze wool pads, impregnated with silicon rubber, meet the requirement for a thermally conductive, shock and vibration absorbing material. They serve as spacers in equipment mounting and are resistant to high temperatures

The RSHA Generation

The Reichssicherheitshauptamt (RSHA) was once the capital of a vast empire of terror; a place where surveillance, persecution, and extermination became merely a quotidian, bureaucratic function and where the Schreibtischtäter could implement their deadly ideology from afar, or sometimes in person; a place where divisions of the SS less associated by the general public with Nazi crimes against humanity, such as the Sicherheitsdienst (SD) and Sicherheitspolizei (Sipo), would persecute and kill more people than the Gestapo and most other Nazi institutions of terror. The RSHA and its many offices became an outlet for many Nazi intellectual elites, who were educated at the prestigious institutions of Weimar and Nazi Germany. After the creation of the RSHA within the SS, these individuals through this apparatus and the opportunities presented by German military conquests were transformed from ideological academics to calculating exterminators of millions. Some made the transition behind a desk in Berlin, while others were committed to seeing the fruits of their labor first hand. These were the ‘true believers’ and most devoted followers of National Socialism

Vietnamese Contract Workers in the East German Republic

This paper will analyze the historical and cultural conditions that affected how the German Democratic Republic treated one of its largest minority groups, the Vietnamese. During the height of the Cold War and as Decolonization reached its peak phase in the 1960s and 70s, these two factors pushed the GDR and Vietnam closer, which resulted in an exchange in workers. Contract Workers were brought to the GDR to work in an environment united in socialist solidarity. However, despite this rhetoric, age-old racism, xenophobia, and Orientalism still infiltrated the so called Socialist Paradise, as the GDR was often called by its own press

Tether management considerations for AAP-4

Solution to tether wrap-up problem for Apollo Applications Program mission-

Computer vision in microstructural analysis

The following is a laboratory experiment designed to be performed by advanced-high school and beginning-college students. It is hoped that this experiment will create an interest in and further understanding of materials science. The objective of this experiment is to demonstrate that the microstructure of engineered materials is affected by the processing conditions in manufacture, and that it is possible to characterize the microstructure using image analysis with a computer. The principle of computer vision will first be introduced followed by the description of the system developed at Texas A&M University. This in turn will be followed by the description of the experiment to obtain differences in microstructure and the characterization of the microstructure using computer vision

The Distribution of the Blow-Gun

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Passive and active seismic isolation for gravitational radiation detectors and other instruments

Some new passive and active methods for reducing the effects of seismic disturbances on suspended masses are described, with special reference to gravitational radiation detectors in which differential horizontal motions of two or more suspended test masses are monitored. In these methods it is important to be able to determine horizontal seismic accelerations independent of tilts of the ground. Measurement of changes in inclination of the suspension wire of a test mass, relative to a direction defined by a reference arm of long period of oscillation, makes it possible to carry this out over the frequency range of interest for earth-based gravitational radiation detectors. The signal obtained can then be used to compensate for the effects of seismic disturbances on the test mass if necessary. Alternatively the signal corresponding to horizontal acceleration can be used to move the point from which the test mass is suspended in such a way as to reduce the effect of the seismic disturbance and also damp pendulum motions of the suspended test mass. Experimental work with an active anti-seismic system of this type is described

Dearborn Observatory

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