Observing the present and considering the past to ponder the future

No abstract available

Variable ratio beam splitter for laser applications

Beam splitter employing birefringent optics provides either widely different or precisely equal beam ratios, it can be used with laser light source systems for interferometry of lossy media, holography, scattering measurements, and precise beam ratio applications

The Thin-Wall Approximation in Vacuum Decay: a Lemma

The 'thin-wall approximation' gives a simple estimate of the decay rate of an unstable quantum field. Unfortunately, the approximation is uncontrolled. In this paper I show that there are actually two different thin-wall approximations and that they bracket the true decay rate: I prove that one is an upper bound and the other a lower bound. In the thin-wall limit, the two approximations converge. In the presence of gravity, a generalization of this lemma provides a simple sufficient condition for non-perturbative vacuum instability.Comment: technically contains 2 lemma

The origins of length contraction: I. The FitzGerald-Lorentz deformation hypothesis

One of the widespread confusions concerning the history of the 1887 Michelson-Morley experiment has to do with the initial explanation of this celebrated null result due independently to FitzGerald and Lorentz. In neither case was a strict, longitudinal length contraction hypothesis invoked, as is commonly supposed. Lorentz postulated, particularly in 1895, any one of a certain family of possible deformation effects for rigid bodies in motion, including purely transverse alteration, and expansion as well as contraction; FitzGerald may well have had the same family in mind. A careful analysis of the Michelson-Morley experiment (which reveals a number of serious inadequacies in many text-book treatments) indeed shows that strict contraction is not required.Comment: 29 pages; accepted April 2001 for publication in American Journal of Physic

Fandom: A Study on How College Students Selected a Favorite Professional Sports Team

This research aimed to uncover key factors in how college students select a favorite sports team. An important issue in today’s sport industry is recognizing fans motives for supporting their favorite sport teams. Sport managers need to better understand fan’s motives in order to address the team\u27s needs and increase the fan base. Also, the team needs to cultivate a relationship for fan involvement to garner economic benefits. The subjects for this study were college students at St. John Fisher College. Using an online survey, the results of this uncovered that team factors were the most important in someone supporting their favorite sports team

Program computes single-point failures in critical system designs

Computer program analyzes the designs of critical systems that will either prove the design is free of single-point failures or detect each member of the population of single-point failures inherent in a system design. This program should find application in the checkout of redundant circuits and digital systems