Introduction to Chemical Equilibria
An interactive set of applet-based demonstrations (many modeled as experimental measurements) that illustrate the concepts and calculations of chemical equilibria. The site demonstrates equilibrium processes in a reaction vessel by plotting the concentration of reactants and products over time. The site would be a good supplement for a class in general chemistry or quantitative analysis.
The essence of industrial design engineering (IDE) is designing and improving products which are used daily and intensively, at home or at work. The faculty is committed to study, innovate and improve the development of durable products and their services for people, on the basis of the balanced interests of users, industry, society and the environment. The faculty pursues this mission through a multidisciplinary approach that integrates human aspects - i.e. ergonomics, market, organisation and
Reflections on the Revolution in Europe: can Europe be the same with different people in it?
After a half-century of mass immigration, has Europe overestimated the need for immigrant labour and underestimated the culture shaping potential of religion? Christopher Caldwell is a senior editor at the Weekly Standard, and a regular contributor to the Financial Times. His new book is entitled Reflections on the Revolution in Europe: Islam, immigration and the west.
Introduction to Mass Spectrometry
This site contains an on-line text on mass spectrometry at the intermediate level. The text gives good general coverage of mass spectrometry instrumentation and applications in very readable format. It contains nice diagrams that provide a visualization of the ionization and mass selection processes. It also contains an overview of applications of mass spectrometry near the end that is different than most sites related to MS. It is especially appropriate for intermediate students.
Introduction to Mass Spectrometry
An introduction to mass spectrometry, primarily an overview of ionization methods and mass analyzers with diagrams that provide visualizations of the topics discussed.
Chem 255/256 - Role Playing Class and Lab for Analytical Chemistry
Role-playing activites that students engage in in this course. Detailed diary of activities, syllabus, and some problem sets. Also provided is a narrative describing the role playing process in the class.
CHEM 121 - Quantitative Analysis
Lecture notes, presentations (HTML and PDF), sample exams and their solutions for an introductory quantitative analysis and an instrumental analysis course.
Basics of NMR
An online text on the basics of Nuclear Magnetic Resonance (NMR) spectroscopy. The text contains information especially appropriate for the novice, but topics are treated at sufficient depth to be useful for more advanced students. This resource features animations that illustrate complex NMR concepts such as precession and the rotating frame of reference.
An overview of techniques used in data analysis. Basic statistics, analysis of variance, principal component analysis, neural networks, and multivariate calibration are addressed.
Middle School Portal: Math and Science Pathways (MSP2)
The goal of the project is to successfully drop a packaged egg from a predetermined height without breaking the egg. The students will explore concepts involving inertia, mass, primary and secondary impacts, gravity, and the dissipation of force. Copyright 2005 International Technology Education Association
Duke Medicine Profiles: Benjamin A. Alman, MD
Get to know Duke Medicine's orthopaedics providers.
Slipping and Rolling Wheel
The EJS Slipping and Rolling Wheel Model shows the motion of a wheel rolling on a floor subject to a frictional force as determined by the coefficient of friction ?k. The simulation allows the user to change the initial translational and rotational velocities of the wheel, v and ?, and the mass, radius, and mass distribution, R, m, and C of the wheel. By controlling these variables, the dynamics of the wheel can be changed to show the sliding, then rolling without slipping, of the wheel.
This site examines the Civil War through collections of artifacts. Topics include slavery and abolition, Abraham Lincoln, the first Union officer killed, soldiering, weapons, leaders, cavalries, navies, life and culture, Appomattox, Winslow Homer, and Mathematics and Statistics. A Civil War time-line is included.
Dilemmas and Debates in Entrepreneurship
This is a course about dilemmas and debates. A dilemma is "an argument presenting two or more equally conclusive alternatives; a choice or a situation involving choice between equally unsatisfactory alternatives; a problem seemingly incapable of a satisfactory solution". The process of entrepreneurship involves the recognition of challenges and dilemmas, vigorous debate, and ultimately, solutions. No solution lasts long in an entrepreneurial milieu whose underpinning is "creative destruction". Y
Popular Front;Fascism;Reprint of an advertisement for gas masks in children's sizes; announcement of a mass meeting to promote democracy and peace.
By the late 1960s, despite the ongoing Civil Rights movement, frustration over poverty, discrimination, injustice, and high unemployment among African Americans helped fuel unrest in many poor, black urban areas. On August 11, 1965, sparked by an angry confrontation between a white police officer and an African American motorcyclist, the Watts neighborhood in Los Angeles erupted in a large-scale civil disorder that lasted for six days and became known as the Watts Riots. Thirty-four people were
Rare, Endangered, and Vulnerable Plants of the Republic of Georgia
Because of its large number of endemic species and rapid rate of habitat destruction, the Republic of Georgia is a biodiversity hot spot. In collaboration with the Missouri Botanical Garden, the Institute of Botany and the Botanical Garden of the Georgian Academy of Sciences has compiled this list of 1200 at-risk species, arranged alphabetically by family. Information on habitat and geographic distribution is included for all species, and images are included for some.
Space Weather Research Explorer
looks at how the sun creates a changing set of conditions in space. Learn about coronal holes, solar flares, coronal mass ejections, solar wind, magnetosphere, and auroras. See photos, graphs, and live data. Make your own space weather predictions.
Science in Focus: Force and Motion: Workshop 8. Bend and Stretch
We all expect a spring to stretch or compress when a force is applied, but forces can even deform solid objects like the floor or the top of a table. In this workshop, students in a high school classroom explore ideas about tension and normal force. By applying a force to a spring and measuring the distance the spring is stretched, the students calculate the force constant or stretchiness of the spring. Lecture demonstrations using student volunteers help to illustrate that even rigid objects be
Rows of concentration camp prisoners in striped garments seen from the back; two german officers amongst them. Signed lower right.,Rows of concentration camp prisoners in striped garments seen from the back; two german officers amongst them. Signed lower right.,Born in 1910 in Floss, Bavaria, David Ludwig Bloch lost his hearing as a child. At age 5 he came to Munich to the national institute for the deaf and mute. Subsequently, he attended a private school for the deaf in Jena. He began to study