"A Man's Thanksgiving": A Hymn to the God of Business
President Calvin Coolidge captured the spirit of the 1920s when he announced in a speech before the Society of American Newspaper Editors that "the chief business of the American people is business." Coolidge's aphorism revealed the centrality of commerce to the nation and its culture in the 1920s, even while it concealed some of the wrenching cultural changes required to accommodate a commercial civilization. An even more forceful publicist for the view that business and spirituality were compa
"A Little Standing Army in Himself": N. A. Jennings Tells of the Texas Rangers, 1875
The Treaty of Guadalupe Hidalgo in 1848 brought an enormous chunk of Mexico to the United States. This added to the territory obtained by the annexation of Texas in 1845, but more than just territory was added. More than 75,000 Spanish-speaking residents became U.S. citizens, but the struggle to achieve that citizenship was long and often unsuccessful. Mexican-Americans lost political power and civil liberties quickly in Texas. Justice was hard to secure and the ranching country of South Texas b
"A Foreigner in My Own Land": Juan Nepomuceno Seguin Flees Texas, 1842
Few Anglos lived in San Antonio after the Texas Revolution of 1835-36 and Tejanos (Texas-Mexicans) continued their rule. Juan Nepomuceno Seguin was born into a prominent tejano family and had close ties with Stephen Austin, leader of the first American settlers in Texas. He became mayor or alcade at an early age and fought on the Anglo side with the coming of Texas' revolt against Mexico. However, his political situation increasingly became fragile because of the changing balance of power and An
Data Plotting and Fitting
This Data Plotting and Fitting page was developed as a third year laboratory for the School of Physics, University of New South Wales. The program will plot data into several different graphs. Graphs include a line graph, linear regression fit, exponential fit, power fit, Gaussian fit and Cos squared fit. The program can also calculate fit for the data if required.
Crossroads in Mathematics: Standards for introductory college mathematics before calculus.
Crossroads in Mathematics: Standards for Introductory College Mathematics Before Calculus has two major goals: to improve mathematics education at two-year colleges and at the lower division of four-year colleges and universities and to encourage more students to study mathematics. The document presents standards that are intended to revitalize the mathematics curriculum preceding calculus and to stimulate changes in instructional methods so that students will be engaged as active learners in wo
A German Way of War? Atrocities and Military Dictatorship
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This document examines the mysterious force of electricity. The reading will focus on the physical properties of electricity and discuss topics such as (1) The Atom of Carbon, (2) Static electricity, (3) Magnets are special, (4) Magnetic fields can produce electricity, (5) Batteries produce electricity, (6) Electricity travels in circuits, (7) Secondary energy source, (8) Making electricity, (9) Moving electricity from power plants to homes, (10) Fuels that make electricity, (11) Fossil fuel pow
This document examine wind power as an energy resource. The reading will define wind and discuss topics such as (1) The history of wind machines, (2) Today's windmills, and (3) Types of wind machines. This resource is structured as an informational handout to supplement your energy activities or to generate discussion questions. Copyright 2005 International Technology Education Association
The windmill (VM1)
This project requires designing blades for a windmill to be used in lifting weights. The activity involves assembly of the basic windmill as well as construction of, and adjustments to, the blades for optimum performance. Provides knowledge of static and dynamic friction, aerodynamics, and power calculations. Requires an understanding of horsepower and the difference between power and energy. Copyright 2005 International Technology Education Association
It's up to you to provide enough power to meet the energy demands of your city's 3.9 million people while keeping them prosperous, secure, and living in a clean environment. The implications of the energy decisions you make today for your city in 2015 are based on the current lifestyles and the projected energy demands and costs for developed countries throughout North America, Europe and Asia.
Break the Science Barrier - Richard Dawkins - Part 1 of 3
Break the Science Barrier follows the Oxford Biologist Richard Dawkins as he meets with people who have experienced the wonders of science first-hand. We meet the astronomer who first discovered pulsars, the geneticist who invented DNA fingerprinting, a scientist who discovered a protein that causes cancer, and others. Dawkins interviews famous admirers of science such as Douglas Adams and David Attenborough, and asks them why science means so much to them. We also see how dangerous ignorance of
Symptoms of Posttraumatic Stress Disorder in a New Orleans Workforce Following Hurricane Katrina
On August 29, 2005, Hurricane Katrina made landfall resulting in catastrophic damage and flooding to New Orleans, LA, and the Gulf Coast, which may have had significant mental health effects on the population. To determine rates and predictors of symptoms consistent with a diagnosis of posttraumatic stress disorder (PTSD) in New Orleans residents following Hurricane Katrina, we conducted a web-based survey 6 months after Hurricane Katrina made landfall. Participants included 1,542 employees from
Kepler's Third Law - The Equation
In this activity students try various ways of plotting sidereal period vs. orbital radius and discover the simple power-law relationship of Kepler's third law. They recreate spreadsheets, shown in a Powerpoint module, with formulas that answer various pieces of the overall question. This activity was designed for an undergraduate class where students look at geological questions mathematically and may spend more time on the math than on the geology. The site includes teaching notes and tips, and
Geothermal Technologies Program
This US Department of Energy site offers a wide variety of information about geothermal energy, including the efforts of the Geothermal Technologies Program to find, access, harness and use the Nation's geothermal resources. Some features of the site include animations about geothermal power, maps of geothermal resources, environmental considerations, photo galleries, information on new research in geothermal technologies, and laws and standards that regulate geothermal energy development.
Defenders of Wildlife - Geothermal Energy Resources: Principles and Recommendations
This web site provides a pro-environment position on geothermal energy development. The site offers environmental principles that should be adhered to, and points out the environmental benefits of geothermal energy. There is also a useful discussion of geothermal energy, where geothermal resources are located, the current state of geothermal development, and recommendations for the siting and operation of geothermal power plants.
22.091 Nuclear Reactor Safety (MIT)
Problems in nuclear engineering often involve applying knowledge from many disciplines simultaneously in achieving satisfactory solutions. The course will focus on understanding the complete nuclear reactor system including the balance of plant, support systems and resulting interdependencies affecting the overall safety of the plant and regulatory oversight. Both the Seabrook and Pilgrim nuclear plant simulators will be used as part of the educational experience to provide as realistic as possi
This Dynamic Earth: The Story of Plate Tectonics
In the early 1960s, the emergence of the theory of plate tectonics started a revolution in the earth sciences. Since then, scientists have verified and refined this theory, and now have a much better understanding of how our planet has been shaped by plate-tectonic processes. We now know that, directly or indirectly, plate tectonics influences nearly all geologic processes, past and present. Indeed, the notion that the entire Earth's surface is continually shifting has profoundly changed the way
Symbols of Power in Clothing Worn by the Plains Indians
Power shirts, often made of tanned animal hides and adorned with objects such as fur, beads, and locks of hair, were highly important in the culture of many Native Americans. These shirts, which were associated very closely with the identity of their wearer, contained various symbols representing success in war, spirituality, special abilities, and outstanding achievements. After studying these shirts, learning to understand their significance to Native Americans, and discussing the symbols they
The CU Online Handbook
Do you currently teach online? Have you thought about teaching online but for some reason haven’t done it yet? Here at CU Online, we believe in the power of online learning. Whether you currently teach online or you are thinking about doing it in the future, we are here to help you sort through this process and we hope that this handbook might help you along the way. The boundaries between traditional face-to-face courses and completely online courses are beginning to blur. Therefore, as we mo
Two-Color Multiple Slit Diffraction
The Two-Color Multiple Slit Diffraction Model allows users to explore multiple slit diffraction by manipulating characteristics of the aperture and incident light to observe the resulting intensity. An exploration of resolving power in spectroscopy is included in the model.