This history concerns the scientific contributions of Charles
Babbage (1791-1871) to mathematics, to the invention of calculating
machines, and machine tools, to the development of scientific ideas
through a wide variety of scientific investigations and his involvement
in several different scientific reforms. Babbage considered himself
a philosopher in the broadest...
The resurgence of creationism the past few years has been led by advocates
of recent-creationism. These individuals, a minority among creationists in general,
argue that the entire universe was created approximately 10,000 years ago in one six-day
period of time. Recent-creationists support their position by appealing to the
Genesis account...
Purpose of the Study
In most liberal arts colleges, the majority of students enrolled
are primarily interested in a liberal education. To meet the requirements
of its students, several colleges have introduced a relatively
new program in the sciences; this program is the integrated
science course. This study attempts to...
A design for an x-ray diffraction teaching device has been
presented. From the design a diffraction device has been constructed.
Based on the principles of the original work by Max von Laue,
a diffraction camera has been constructed using a diagnostic x-ray
machine. The diffraction camera provides a fast, safe,...
Chromosome complements of ten species of shorebirds, order
Charadriiformes, were analyzed and compared. Mitotic chromosomes
from the pigeon guillemot (Cepphus columba), Heermann's gull (Larus
heermanni), the California gull (L. californicus), the western gull
(L. occidentalis), the American avocet (Recurvirostra americana),
the western willet (Catoptrophorus semipalmatus), Wilson's snipe
(Capella gallinago), the...
During the years between 1930 and 1950 a number of attempts
were made to introduce techniques and ideas from cytology,
ecology, and genetics into the field of taxonomy. Advocates of
this "experimental taxonomy" believed that cytological, ecological,
and genetic techniques would provide a rigorous, objective
methodology to replace the traditional...
Microtus canicaudus Miller, the gray-tailed vole, was studied
in the field and laboratory in order to clarify aspects of the relationship
of this species to its habitat. All trapping and sampling was done
on permanent pasture land in the William L. Finley National Wildlife
Refuge 12 miles south of Corvallis,...
At the beginning of the nineteenth century most theorizing British naturalists supported a Biblical account of the distribution of life which was based upon the notion that life had been dispersed from the resting place of the ark. This implied a relatively even dispersion of life about the Earth, but...
The nuclear level structure of ¹⁰¹Ru has been investigated
through the decay of 14.0 minute ¹⁰¹Tc produced by thermal neutron
irradiation of molybdenum targets. Gamma-ray energies and relative
intensities have been measured with the high resolution Ge(Li) spectrometers.
Based on the energy sum and the intensity balancing, a
consistent level...
Chemical dosimetry developed in response to needs created by
developments in the field of high-energy radiation. Shortly after the
discovery of X-rays in 1895 and of radioactivity in 1896, the deleterious
effects of ionizing radiation were recognized. To guard against the
injurious effects of radiation in medical application, dose-measuring
methods...