"We Ran Silent Movies For Years": An Italian Immigrant Goes Into Show Business in the Early 20th cen
The advent of "talkies"in the early 20th century had an impact felt far from Hollywood. Immigrants made up a significant portion of the movie-going audience during the silent film era because the lack of (English) speech beckoned immigrants unable to comprehend the many facets of American life: a picture that didn't talk was particularly appealing to people who didn't speak or read English. In this oral history, recorded by Roy Rosenzweig in 1978, Italian immigrant Fred Fedeli recalled his exper
Haymarket Martyr Albert Parsons's Last Words to His Wife
The Chicago radicals convicted of the infamous May 4, 1886 Haymarket Square bombing in which one policeman was killed remained openly defiant to the end. In his final letter to his wife, written August 20, 1886 from the Cook County "Bastille" (jail), convicted Haymarket bombing participant Albert R. Parsons, an Alabama-born printer, admitted that the verdict would cheer "the hearts of tyrants," but still optimistically predicted that "our doom to death is the handwriting on the wall, foretelling
Booker T. Washington Delivers the 1895 Atlanta Compromise Speech
On September 18, 1895, African-American spokesman and leader Booker T. Washington spoke before a predominantly white audience at the Cotton States and International Exposition in Atlanta. His "Atlanta Compromise" address, as it came to be called, was one of the most important and influential speeches in American history. Although the organizers of the exposition worried that "public sentiment was not prepared for such an advanced step," they decided that inviting a black speaker would impress No
Eruption! is a volcanic crisis simulation model that showcases a series of villages that surround an active volcano and is part of the Interactive Models for Geological Education Online (IMGEO) series. The goal of the exercise is to preserve as many people and as much property as possible in spite of the threat from the volcano. Students role-play as villagers, the governor, volcanologists, and the press. The rules of the simulation, plus guides for teaching assistants and students, are availabl
TRMM Online Visualization and Analysis System (TOVAS)
This site provides users with a friendly web-based interface for visualization and analysis of Tropical Rainfall Measuring Mission (TRMM), gridded rainfall products and other precipitation data. It is applicable to variety of researches and applications, such as climate study and monitoring, weather events study and monitoring, agricultural crop monitoring, rainfall algorithm study, and data products comparison.
Inside the Oval Office
As staff secretary to President Dwight Eisenhower from 1954 to 1961, General Andrew Goodpaster was the person most privy to Eisenhower's thinking and key decisions during his White House years. Goodpaster began his long affiliation with Eisenhower as a staff officer under his leadership of the Supreme Headquarters Allied Powers Europe (SHAPE), and he went on to become the president's right-hand man on security matters. In this video segment, Goodpaster describes the inter-service rivalries that
'The Dogs' is set on a bright, summer day at a seemingly benign seashore inhabited by a nervous, beer-drinking protagonist and a dark, panting dog. This is a narrative that has no dialogue but is structured in movement of the man, of the dog (who is both harmless and menacing by turns), as well as all the camera work moving to the right in a clockwise direction that captures images in vivid color, creating an unsettling spin. A psychological study of shifts in memory and the perception of realit
Atmosphere Applet: This program lets you study how the properties of the atmosphere change with altitude. You can study the atmosphere of either the Earth or Mars. The equations used in this program are taken from the ICAO standard day model for the Earth and from some curve fits of the Martian atmosphere gathered by the Global Surveyor spacecraft. Using the airplane graphic you can select an altitude, or you can type an altitude into the input box. The program instantly outputs a selected pro
FoilSim and CurveBall
FoilSim II computes the theoretical lift of a variety of airfoil shapes. The user can control the shape, size, and inclination of the airfoil and the atmospheric conditions in which the airfoil is flying. The program includes a stall model for the airfoil, a model of the Martian atmosphere, and the ability to specify a variety of fluids for lift comparisons. The program has graphical and numerical output, including an interactive probe which you can use to investigate the details of flow around
This is an on-line resource on topics of Applied Calculus, including on-line tutorial sessions.
How to accelerate your Internet
Access to sufficient Internet bandwidth enables worldwide electronic collaboration, access to informational resources, rapid and effective communication, and grants membership to a global community. Therefore, bandwidth is probably the single most critical resource at the disposal of a modern organisation. The goal of this book is to provide practical information on how to gain the largest possible benefit from your connection to the Internet. By applying the monitoring and optimisation techniqu
Food Insufficiency Is Associated with High-Risk Sexual Behavior among Women in Botswana and Swazilan
Background Both food insufficiency and HIV infection are major public health problems in sub-Saharan Africa, yet the impact of food insufficiency on HIV risk behavior has not been systematically investigated. We tested the hypothesis that food insufficiency is associated with HIV transmission behavior. Methods and Findings We studied the association between food insufficiency (not having enough food to eat over the previous 12 months) and inconsistent condom use, sex exchange, and other measure
Cotton: Building a Better Plant
Plant genome research is already revolutionizing the field of biology. Currently, scientists are unlocking the secrets of some of the most important plants in our lives, including corn, cotton and potatoes. Secrets of Plant Genomes: Revealed! takes viewers on a lively, upbeat journey that explores how these plants got to be the way they are and investigates how we can make better use of them in the future. Plant scientists are hard at work--in the lab, in the field and at the computer--to increa
X-Ray Vision, Crystallography
This site features a tutorial designed to allow students to gain an appreciation of how X-ray crystallography works. Using X-ray diffraction patterns to determine the arrangement of atoms in a molecule requires sophisticated mathematics. This activity depends only on light from an overhead projector passing through a ball-and-stick molecular model placed on the stage of the projector, making it an ideal introduction to x-ray diffraction.
Nonlinear physics is a catch-all term for the study of the dynamics of driven, open, non-equilibrium systems. Our group is mainly concerned with the phenomenon of pattern formation. When a nonlinear, dissipative system ( that is, one with friction ) is driven hard enough, it will often undergo a symmetry-breaking instability which takes it to a regular pattern state. The pattern is a dynamical state sustained by the driving forces which can have a high degree of periodic order and symmetry, even
Living Between Two Worlds
In this lesson, students will explore issues common to all families. They will examine school, work and conflict in their lives and the lives of the family profiled in the film. They will have an opportunity to role-play solutions to school conflicts based on a series of vignettes.
Urban renewal policies enacted in San Francisco's Fillmore district in the 1950s-60s provide a vivid case study in public policy, federal and local government, and citizen activism. This important history sheds light on present-day urban renewal policies, such as empowerment zones and welfare-to-work.
The Olympic Region Harmful Algal Blooms
This is the website of the Olympic Region Harmful Algal Bloom (ORHAB) partnership, which was organized to develop collaboration and cooperation among federal, state and local management agencies, coastal Indian tribes, marine resource-based businesses, public interest groups, and academic institutions. The ORHAB partnership investigates the origins of blooms of toxic algae, monitors where and when the blooms occur, assesses the environmental conditions conducive to blooms and toxification of int
The Goldilocks Zone
This is an article from "Teachable Moments in the News," a newsletter that takes recent Earth and space science related news stories and places them in a context relevant to the science curriculum. This particular edition describes the Goldilocks Zone, a range of environmental conditions that can support life. Teachers are provided a brief introduction, relevant news links, and developed lesson plans. Some lessons are in PDF format. Activity themes include: exploration of environmental condition
Building your own support network
How to take charge of your own professional development and break through the isolation of the classroom.