Rocking the Boat
The concepts of stability and equilibrium are introduced while students learn how these ideas are related to the concept of center of mass. They gain further understanding when they see, first-hand, how equilibrium is closely related to an object's center of mass. In an associated literacy activity, students learn about motion capture technology, the importance of center of gravity in animation and how use the concept of center of gravity in writing an action scene.
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The Big Mo
Momentum is not only a physical principle; it is a psychological phenomenon. Students learn how the "Big Mo" of the bandwagon effect contributes to the development of fads and manias, and how modern technology and mass media accelerate and intensify the effect. Students develop media literacy and critical thinking skills to analyze trends and determine the extent to which their decisions may be influenced by those who manipulate a few opinion leaders. Note: The literacy activities for the Mechan
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Chronos: a network for Earth system history
CHRONOS (Greek: time) aims to create a dynamic, interactive and time-calibrated framework for Earth history. CHRONOS's main objective is to develop a network of databases and visualization and analytical methodologies that broadly deal with chronostratigraphy - that is, with developing a better tool (the time scale) for understanding fundamental Earth processes through time. The CHRONOS platform will provide a new investigative environment for interdisciplinary Earth history research that includ
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Computer enhanced education in undergraduate dietetics programs
Since computer technology was reported as underutilized on a previoussurvey, the objective of this study was to strengthen the role of technology forundergraduate programs in food and nutrition. The purpose was to determinewhether attendance at a workshop on computer applications would increase thevariety and frequency of use of computer applications and educational materials inundergraduate nutrition programs and would stimulate the development of computerenhanced education materials. A 89-item
Author(s): Williams, Jennifer M.

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Popular Front;Fascism;Reprint of an advertisement for gas masks in children's sizes; announcement of a mass meeting to promote democracy and peace.
Author(s): People's Congress for Democracy and Peace

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Popular Front;Fascism;Reprint of an advertisement for gas masks in children's sizes; announcement of a mass meeting to promote democracy and peace.
Author(s): People's Congress for Democracy and Peace

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http://www.library.pitt.edu/libraries/archives/policies/guidelines.html

5.32 Intermediate Chemical Experimentation (MIT)
5.32 involves more advanced experimental work than 5.310 or 5.311. The course emphasizes organic synthesis assisted by chiral catalysis, purification, and analysis of organic compounds employing such methods as IR, 1D and 2D NMR, UV spectroscopies and mass spectrometry, and thin layer and non-chiral and chiral gas chromatography. In 5.32, experiments also involve enzyme purification, characterization and assays, as well as molecular modeling in organic synthesis and in biochemical syst
Author(s): Gheorghiu, Mircea,Klibanov, Alexander

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Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative C

The Mole
You probably remember the mole from high school chemistry, but do you remember why it is useful to chemists? The goal of the following video is to give the "big picture" of the mole and its applications; information on how to use the mole in calculations can be found in another tutorial. Throughout this course, we will use the term "molecular weight" to refer to the mass of a mole of a substance (for instance, the molecular weight of oxygen (O2) is 32 g/mol). Recent textbooks refer to this as "m
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Calculate the Top Quark Mass
Students use conservation of momentum to calculate the mass of the top quark. This activity examines the fingerprint of a top/antitop production that took place in the D-Zero Detector at Fermilab on July 9, 1995. This activity will build on student understanding of vector addition and depends upon only a small amount of particle physics explanation.
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Applying Ohm's Law to Semiconductors
This project allows students to apply concepts of momentum conservation and energy conservation from classical physics. However, here they are not enough: they must be combined with modern physics, using concepts from relativity and particle physics as well as modern units that put energy, mass, and momentum in terms of MeV and GeV. Most important, students will learn about both fundamental and cutting-edge physics by actually doing what physicists do.
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Essential Science for Teachers: Physical Science Session 3. Physical Changes and Conservation of Mat
What happens when sugar is dissolved in a glass of water or when a pot of water on the stove boils away? Do things ever really "disappear"? In everyday life, observations that things "disappear" or "appear" seem to contradict one of the fundamental laws of nature: matter can be neither created nor destroyed. In this session, participants learn how the principles of the particle model are consistent with conservation of matter.,The segment shows the interviewer trying to find out the student's id
Author(s): Harvard-Smithsonian Center for Astrophysics

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VMSL: Virtual Mass Spectrometry Laboratory
This site presents a series of case studies that can be explored using modern mass spectrometry methods. The problem-solving nature of the site provides students a virtual laboratory experience that can supplement access to mass spectrometry instrumentation.
Author(s): Joseph J. Grabowski

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NASA KSNN What is gravity?
Gravity is one of the fundamental forces of nature. No one really understands exactly why, but gravity is a force that pulls objects toward each other. The mass of the objects and distance between the objects affects the strength of the force of gravity. Greater masses attract with more force and the force weakens as the objects get further apart.
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NASA KSNN Is water important for all living things?
Explore the importance of water for living things and analyze and compare a variety of fruits and vegetables based upon the mass of water in these foods.
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NASA KSNN Is flying a plane in a videogame like flying a real plane?
Learn more about simulators through this video newsbreak and demonstrate the purpose of using simulators. Explore the importance of water for living things and analyze and compare a variety of fruits and vegetables based upon the mass of water in these foods
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Pendulum Lab
Play with one or two pendulums and discover how the period of a simple pendulum depends on the length of the string, the mass of the pendulum bob, and the amplitude of the swing. It's easy to measure the period using the photogate timer. You can vary friction and the strength of gravity. Use the pendulum to find the value of g on planet X. Notice the anharmonic behavior at large amplitude.
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Projectile Motion
Blast a Buick out of a cannon! Learn about projectile motion by firing various objects. Set the angle, initial speed, and mass. Add air resistance. Make a game out of this simulation by trying to hit a target.
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Lunar Lander
Can you avoid the boulder field and land safely, just before your fuel runs out, as Neil Armstrong did in 1969? Our version of this classic video game accurately simulates the real motion of the lunar lander with the correct mass, thrust, fuel consumption rate, and lunar gravity. The real lunar lander is very hard to control.
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Two Particle Elastic Collision Model
The EJS Elastic Collision Model allows the user to simulate a two-dimensional elastic collision between hard disks. The user can modify the mass, position and velocity of each disk using the sliders. Both disks are draggable and the center of mass is shown a a cross in the simulation.
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Urban Nomads
China is a country in superlative transition. Media attention focuses primarily on the economic miracle and burgeoning political power, while the interwoven and critically important story of mass human migration remains a postscript. Driven from crumbling countryside economics, 200 million Chinese have moved to the cities, serving as cogs in an engine powering unprecedented growth. Though they are changing every facet of Chinese life, these internal migrants are, by law and practice, second-clas
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