Vacuum forming of thermoplastic sheet results in low-cost investment casting patterns

Vacuum forming of a sheet of thermoplastic material around a mandrel conforming to the shape of the finished object provides a pattern for an investment mold. The thickness of the metal part is determined by the thickness of the plastic pattern

Antarctic iron meteorites: An unexpectedly high proportion of falls of unusual interest

The inhabited and explored areas of Earth have contributed 725 iron meteorites, accounting for 28% of the 2611 authenticated meteorites known of all types. Observed fall statistics give a much different view of relative abundance. The 42 historic iron meteorite falls spanning 230 years suggests a frequency of one fall per 5.6 years and represents only 4.9% of the total 853 known falls. Antarctic iron meteorite recoveries offer promise of providing a new perspective on the influx problem. At least 42 iron meteorite specimens were found during the last 25 years by various field teams working in Antarctica. Most of these specimens were not described in detail, but the available data indicates that 21 separate falls are represented, 50% of the number of recovered specimens. Twelve of the 21 falls were both structurally classified and placed into chemical groups. They are listed in order of increasing structural complexity and/or Ni content

A Summary of the Characteristics of Ballistic Interplanetary Trajectories, 1962-1977

Characteristics of ballistic interplanetary trajectories, 1962-197

The hermeneutics of Hermann Diem: a renewed conversation between existentialist exegesis and dogmatic theology

Thesis (Ph.D.)--Boston UniversityThe problems of contemporary biblical interpretation are largely rooted in the instability caused by an inadequate response by the Church to the challenge realised by historical criticism, and this uncertainty has now been compounded by the embittered divisions between two contemporary responses to the hermeneutical impasse, namely existentialist exegesis and dogmatic theology. This dissertation undertakes to examine the hermeneutic's reaction to this situation by an outstanding continental theologian, Hermann Diem. The scope of this dissertation is limited to the realm of German speaking Protestantism, and further to the debate aroused by the alternatives currently presented by Rudolf Bultmann and Karl Barth in hermeneutics, and to Diem's response to these alternatives. The method used is descriptive and comparative in nature. [TRUNCATED

Note, Peleg Clarke Jr. to Unknown, October 11, 1892

This handwritten note, dated October 11, 1892, is written from Peleg Clarke to an unidentified recipient letting them know he\u27s received their letter and notifies them that Mr. Morgan is there and invites them over. The note is written on the back of a page with the title References in Regard to Clarke\u27s Shaft Targets.https://scholarsjunction.msstate.edu/fvw-manuscripts-clarke/1073/thumbnail.jp