Collaborative Work During Interventional Radiological Procedures Based on a Multicast Satellite-Terr
Collaboration is a key requirement in several contemporary interventional radiology procedures (IRPs). This work proposes a multicast hybrid satellite system capable of supporting advanced IRP collaboration, and evaluates its feasibility and applicability. Following a detailed IRP requirements study, we have developed a system which supports IRP collaboration through the employment of a hybrid satellite-terrestrial network, a prototype multicast version of wavelet based interactive communication
Hayden Planetarium: Astrophysics Visualization Archive
Explore astrophysics through science visualization and animation. The Astrophysics Visualization Archive is a resource for visualizations (movies) that demonstrate astronomical or astrophysical phenomena. Choose from one of these categories: Solar System, Stars, Galaxies, and Universe.
Make Your Own Einstein Stationery
This OLogy activity gives kids a fun way to mesh their own thoughts with those of Albert Einstein. Three ready-to-print letterheads are provided as downloadable PDFs. They include colorful looks at:that most famous of equations, E=mc2the great web of existing scientific thought that Einstein built his ideas upon a thought experiment that asks the question, "What if you could ride on a beam of light?"
Solar System Scavenger Hunt
This OLogy activity gives kids a grounded way to understand the scale of the planets in our solar system. The activity begins with a brief overview that tell them why all planets are round and introduces them to the concept that the planets vary widely in size. Kids are then asked to create a model of the solar system using found objects that match the provided scale in inches for the planets. The activity ends with a series of challenges, which include arranging the planets according to size an
This OLogy activity offers a creative way to give kids hands-on knowledge of the planets in their solar system. The activity begins with an interactive look at what makes each of the nine planets unique. Kids "mouse over" a planet to learn interesting facts about why it looks the way it does. Then kids "show what they know about the planets" by making a solar system of representative cookies, using the bake-free recipe and directions provided.
'Color Schemes' features twelve performers and writers of color who collaborate to recount incidents of racism, particularly racism in the entertainment industry. The work uses the metaphor of washing a load of colored clothing and is divided up into four sections based on laundry cycles. Cycle One, 'Soak,' opens with an archival piece of animation about the price of labor, with a particularly offensive rendition of a Chinese man who is referred to repeatedly as a 'coolie.' In a staged vignette,
Tectosilicates, Carbonates, Oxides, & Accessory Minerals
This site from Tulane University consists of a lecture by Dr. Stephen Nelson on tectosilicate, oxide and carbonate minerals. The site features a table and description of the minerals in each group, including the nine types of SiO2, the different feldspars, and the calcite group. Optical and physical properties are explained, as well as the environment in which each mineral crystallizes.
Today in History
This sit efeatures a different person or event in history each day. Past features include Frederick Douglass, Woodrow Wilson, George Washington, Abraham Lincoln, Benjamin Banneker, Rosa Parks, Samuel Slater, Louisa May Alcott, Radio City Arts Hall, the Wright brothers' first flight, the Bill of Rights, the Gadsden Purchase, the Federal Reserve System, the Wounded Knee massacre, Pearl Harbor, the first controlled nuclear fission chain reaction, and more.
Map Collections: 1544-1996
This site offers thousands of digitized online maps. The collections are broken into seven categories, cities and towns, conservation and environment, discovery and exploration, immigration and settlement, military battles and campaigns, transportation and communication, and general maps.
Origins of American Animation
This site offers 21 animated films and 2 fragments, which span the years 1900 to 1921. The films include clay, puppet, and cut-out animation, as well as pen drawings. They point to a connection between newspaper comic strips and early animated films, as represented by Keeping Up With the Joneses, Krazy Kat, and The Katzenjammer Kids.
Judith Wallerstein: The Future of Child and Adolescent Psychotherapy
What lessons have we learned about child and adolescent treatment? What are the critical treatment needs of California's children and families? This program will offer an opportunity to hear from one of the leading authorities on this critical policy and practice issue facing mental health clinicians and social service professionals today. Dr. Wallerstein is an authority on the effects of divorce on children and their families. She is the co-author of the bestseller, The Unexpected Legacy of Di
Diagramming the Study Site for Others
The purpose of this resource is to develop the best possible representation of the study site as a system. Students visit a study site, where they observe and recall their existing knowledge of air, water, soil, and living things to make a list of interconnections among the four Earth system components. They make predictions about the effects of a change in a system, inferring ways these changes affect the characteristics of other related components.
Scaling Galileo's Solar System - Size of the Globes
In this activity students determine the sizes of the various planets in the solar system, scaled such that the orbit of Saturn fits on campus. The students also compare the planet sizes, given the scale, to the grain sizes of different sediment types. Students recreate spreadsheets, shown in a Powerpoint module, with formulas that answer various pieces of the overall question. This module is the second in a series of four on the Galilean Solar System, and was designed for an undergraduate class
Earth's history in 4.56 meters: constructing a timeline with calculator tape
In this short activity, students make a timeline of Earth's history using calculator tape. The tape is 4.56 meters long, so that one billion years is equal to one meter. This exercise is designed to introduce students to the scale of Earth's history and help them gain a familiarity with some major events. It also teaches about scaling, the metric system, as well as the concepts of large numbers and deep time. The activity may be used in an introductory geoscience course. Learning goals, context
Volcanoes is an interdisciplinary set of materials for grades 4-8. Through the story of the 1980 eruption of Mount St. Helens, students will answer fundamental questions about volcanoes: "What is a volcano?" "Where do volcanoes occur and why?" "What are the effects of volcanoes on the Earth system?" "What are the risks and the benefits of living near volcanoes?" "Can scientists forecast volcanic eruptions?" This teaching packet reflects the goals of the National Science Education Standards deve
Inertial Oscillation Model
The EJS Inertial Oscillation model displays the motion of a particle moving over the surface of an oblate spheroid. The spheroid is flattened to an ellipsoid of revolution because it is rotating, just as the Earth is flattened because it is rotating. The particle is confined to motion along the surface by the spheroid's gravity; the motion parallel to the surface is treated as frictionless. The simulation shows simultaneously the motion with respect to the inertial coordinate system, and the mot
Great Circles Model
The EJS Great Circles model displays the frictionless motion of a particle that is constrained to follow the surface of a perfect sphere. The sphere rotates underneath the particle, but since there is no friction, and the sphere is perfectly spherical, the motion of the particle is not influenced by the sphere. The simulation shows simultaneously the trajectory with respect to the inertial coordinate system, and the trajectory as seen from a point of view that is co-rotating with the sphere. The
Proving (a Theorem) and Disproving (a Theory). Applying the Pythagorean Theorem to Real Life
In this lesson, students share thoughts about careers and gender roles. They then work together to prepare a proof of the Pythagorean theorem and synthesize their learning by preparing a creative representation of Pythagoras' ideas.
Cardiovascular Construction Kit
The Cardiovascular Construction Kit (CVCK) allows students to design and construct a wide range of cardiovascular systems, testing each one to see how it behaves and whether it could actually exist and survive in a real organism. CVCK provides a set of basic components, e.g., pumps, vessels, capillaries and so on, which may be pieced together to construct a cardiovascular system. Gauges and measurement techniques are provided so you can draw conclusions from your experiments. Note: CVCK is a MAC
This interactive L-system simulation produces visualizations of tree forms based on data from specimens in the field or laboratory.