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Votes:0 The Atom Basic Atom Atomic Nomenclature The Atom 2 Atomic Nomenclature 2 Radioactivity Nuclear Fusion Basic Fusion Binding Energy Nucleosynthesis The Stars Controlled Fusion D-T Reaction Magnetic confinement Inertial confinement Nuclear Fission Basic Fission Fission Power Nuclear Waste (Types) Nuclear Waste (Storage) New Nuclear Power Technologies Nuclear Weapons Reaction Simulation Timeline Treaties Biographies Prerequisites: Radioactivity --> Forums Nuclear Power Discussion Forum Question Forum Survey Take the Survey View Results Test Test your Knowledge High Scores Feedback Guest Book Contact Us This site is optimized for at least 800x600
resolution and 65,000 colors, and is Java Enhanced. If Java is disabled, a text menu will automatically appear. Medieval Alchemists long ago sought to Read More Go to Site
Votes:0 A machine is a tool used to make work easier. Simple machines are simple tools used to make work easier. Compound machines have two or more simple machines working together to make work easier. In science, work is defined as a force acting on an object to move it across a distance. Pushing, pulling, and lifting are common forms of work. Furniture movers do work when they move boxes. Gardeners do work when they pull weeds. Children do work when they go up and down on a see-saw. Machines make their work easier. The furniture movers use a ramp to slide boxes into a truck. The gardeners use a hand shovel to help break through the weeds. The children use a see-saw to go up and down. The ramp, the shovel, and the see-saw are simple machines. Inclined Plane A plane is a flat surface. For example, Read More Go to Site
Votes:0 Carnot Cycle (Heat Engine) This java applet show you the physics processes of a Carnot heat engine. Carnot cycle is a four-stage reversible sequence consisting of 1. adiabatic compression 2. isothermal expansion at high temperature T2 3. adiabatic expansion 4. isothermal compression at low temperature T1 5. back to stage 1 and continue. 1. Set the starting point ( P ress, V olume) of the adiabatic compression process: The program will show the piston position and related information as you move the mouse inside the P-V region. Click the mouse to set the initial P-V value. 2. Set the starting point for the isothermal compression process: click the mouse button again (within the possible region). 3. Press Start button to start the animation, Press Reset to reset the conditions. The efficienc Read More Go to Site
Votes:0 What is a rainbow? Author Donald Ahrens in his text Meteorology Today describes a rainbow as "one of the most spectacular light shows observed on earth". Indeed the traditional rainbow is sunlight spread out into its spectrum of colors and diverted to the eye of the observer by water droplets. The "bow" part of the word describes the fact that the rainbow is a group of nearly circular arcs of color all having a common center. Where is the sun when you see a rainbow? This is a good question to start thinking about the physical process that gives rise to a rainbow. Most people have never noticed that the sun is always behind you when you face a rainbow, and that the center of the circular arc of the rainbow is in the direction opposite to that of the sun. The rain, of course, is in the direc Read More Go to Site
Votes:0 About Temperature About Temperature This document was prepared for the middle school math teachers who are taking part in Project Skymath . It is also hoped that the general public will find it interesting. Disponible en espanol, toque aqui . Contents (click on star) What is Temperature The Development of Thermometers and Temperature Scales Heat and Thermodynamics The Kinetic Theory Thermal Radiation 3 K - The Temperature of the Universe Summary Acknowledgments References What is Temperature? In a qualitative manner, we can describe the temperature of an object as that which determines the sensation of warmth or coldness felt from contact with it. It is easy to demonstrate that when two objectsof the same material are
placed together (physicists say when they are put in thermal contact), t Read More Go to Site
Votes:0 Thermodynamics Return to the Main CHEMystery Page What is Thermodynamics? Thermodynamics is the
branch of science which studies the transformation of energy
from one form to another. Chemical thermodynamics
looks at the energy transformations which occur as a result of
chemical reactions. The questions that chemical thermodynamics asks are: How much heat is evolved during a chemical reaction ("thermochemistry")? What determines the direction of spontaneous chemical change? For example, if you put a flame to a 2:1 mixture of
H 2 and O 2 there is an almighty bang and
the reaction proceeds spontaneously to products, i.e. without
any further supply of external energy. Why does it not happen that water spontaneously goes to
H 2 and O 2 when we put a lit taper to
it under the same conditions? Wh Read More Go to Site
Votes:0 Biological Sciences Carbon Sequestration Chemical Science Climate Change More... Bioenergy Coal Electric Power Fossil Fuels More... Buildings ENERGY STAR Financing Homes More... Clean Air, Soil & Water Climate Change Facilities Oversight More... Annual Energy Outlook Annual Energy Review Energy Statistics Frequenty Asked Questions... Cyber Security Facility Security Nuclear Security Intelligence & Counterterrorism More... Chemical Safety Chronic Beryllium Disease Facility Safety Nuclear Safety More... This area displays a random energy-saving tip, but your brower cannot display it. You may view all tips . --> Choose One: Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massac Read More Go to Site
Votes:0 About the Office of Science News and Information Accomplishments/Awards Program Offices Research Universities National Laboratories Scientific User Facilities Budget and Planning Grants and Contracts Project Assessment Safety Field Offices Quick Links Site Map Contact Office of Science On November 1, 2007, at a White House ceremony, eight DOE “early career” researchers received the 2006 Presidential Early Career Award for Scientists and Engineers (PECASE), the highest honor bestowed by the U.S. government on outstanding scientists and engineers who are beginning their independent careers. Each PECASE winner received a citation, a plaque and a commitment for continued funding of their work from their agency for five years. The eight DOE researchers -- four funded by the Office o Read More Go to Site
Votes:0 Energy Notes - Overview Energy Table of Contents: (For a detailed list of expectations, see Terms and Objectives .) Concepts The Work/Energy Equation Deriving the Work/Energy Equation An Alternate Derivation of the Work/Energy Equation Kinetic Energy Calculating the Kinetic Energy of an object Kinetic Energy is not the same as Momentum Work Work done by a constant force Work done by a force in the direction of motion Work done by a force in the direction opposite the motion Work done by a force perpendicular to the motion Work done when no motion occurs Work is not Force! Some numerical examples of calculating work A More Mathematical Look at Work Vectors and Work Work done by a varying force Work done by the average force Work as area Work done to stretch a spring A more-mathematical view Read More Go to Site
Votes:0 Site Map | FAQ in All Infoplease Almanacs • General • Entertainment • Sports Biographies Dictionary Encyclopedia Spelling Checker Daily Almanac for Nov 22, 2007 Search White Pages Skip Navigation Home Almanacs Atlas Encyclopedia Dictionary Thesaurus Features Quizzes Timelines Countries American Indian Heritage Month World & News United States History & Gov't Biography Sports Arts & Ent. Business Society & Culture Health & Science Homework Center Fact Monster Kid's reference, games, quizzes Daily Almanac This Day in History Today's Birthday Word of the Day Editor's Favorites American Indian Heritage Month Thanksgiving Advent Hanukkah Pearl Harbor Day Campaign 2008 Pakistan Country Profile Iraq Timeline Presidential Factfile NFL Team Profiles Daylight Saving Time 2007 Current Read More Go to Site
Votes:0 Energy I Energy is the ability of an object to cause change. The energy of an object
in motion is called kinetic energy. The word "kinetic" was derived from the
Greek word for motion. The greater the mass of a moving object, the greater is
its kinetic energy. A 4,000 pound Cadillac moving at 60 miles per hour has more
energy that a 2,000 pound Subaru. Kinetic energy is also related to speed. The
greater the speed, the greater the kinetic energy. For example, a 2,000 pound
Subaru moving at 120 miles per hour has more kinetic energy that a 4,000 pound
Cadillac moving at 5 miles per hour. Potential energy is the ability of an object to cause change because of its
position. When two things are pulling on each other, the further apart you
separate them, the greater the potential energy. For exa Read More Go to Site
Votes:0 HOME ABOUT CALENDAR NEWS PROGRAMS SCIENCE INDEX & SEARCH FIND US EXPANSION ABOUT ENERGY Introduction Energy is the source of all change on the planet Earth. Earth is a complex of active physical and biological systems which interact and influence one another and change in response to energy in its various forms. There are various sources and forms of energy on Earth; some exert their influence naturally and others do so through human intervention. Energy cannot be destroyed but it can be (and constantly is) converted from one form to another. 1. What is the most important source of energy for Earth? The Sun. Energy radiating from our closest star - the Sun - provides the natural power that fuels most of the physical and biological processes important to life. These processes include the mo Read More Go to Site
Votes:0 Gondar Design Physics [ Home ] Energy Diffusion Electricity Ohm's Law Power Decibel Watts Electromagnetic Spectrum Visible Light Sine Waves Adding Sine Waves Hooke's Law Last revised: 10 November 2006 Extra support for students at Kingsbury High School Search the Science Definitions Database Vote now in the election of the century Recommend this page to a friend Nigel D Purchon Copyright ? 1997 - 2000 Gondar Design. All rights reserved. View Copyright Notice View Privacy Notice Read More Go to Site
Votes:0 GuyMcArthur.com "The truth is quite odd enough to need no help from pseudoscientific charlatans." R.Dawkins Home Photos Projects Resources Opinions Links Happy Thursday, 2007 November 22 23:38 EST This page has been visited 28 times today. > home > resources > java > applets > st > SpectrumTuner Applet You need a JAVA-enabled browser to view this applet T H E E L E C T R O M A G N E T I C S P E C T R U M Please click or drag with the mouse in the Spectrum window to view the parameters. Use the Select Boxes (right) to choose your units. Enter values in the textfields (center). Download application . Save to Desktop, double-click to run. Also available in Italian When an electron is accelerated, electromagnetic (EM) radiation is released. This radiation can be i Read More Go to Site
Votes:0 Interactive Experiments in Gravity This directory contains documents and interactive Java applets which explore
aspects of both Newton's theory of universal gravitation and
Einstein's general relativity. The first two installments in the series are now available. Bending Spacetime in the Basement We live our entire lives within the Earth's gravitational field, yet
rarely if ever do we experience the universality of gravitation:
that every object in the universe attracts and is attracted by
every other. This page presents a "basement science" experiment
which reveals the gravitational attraction between objects less than a
kilogram in mass. Knowledge in antiquity suggesting gravitation was
universal is discussed, and the feasibility of an experimental test
using only materials and technique Read More Go to Site
Votes:0 Celebrating 100 years of particle physics * A ThinkQuest Project created by Team Number 10380 Rahul Jain (Team Leader) and Shaheen Gandhi J.J. Thomson discovered the electron in 1897 , sparking the search for more sub-atomic particles and creating the field of particle physics. We dedicate this site to him for all that his discovery precipitated. By the way, it's also the 50 th anniversary of the discovery of the pion . If you are using Microsoft Internet Explorer, pages will load and the site is fully enjoyable, but some JavaScript may not work. Read More Go to Site
Votes:0 Kinetic Theory I This Java applet simulates a 2 dimensional gas of hard spheres. It
illustrates several important concepts in statistical
mechanics/kinetic theory, such as: mean free path and average time
between collisions, the approach to thermal equilibrium and the
Maxwell-Boltzmann speed distribution, and the question of macroscopic
irreversibility vs. microscopic reversibility. To use the applet, enter a number in the text field, click "Set",
then click "Run." The "molecules" are spheres of radius one pixel
(the default value; you can change the radius to two pixels by
clicking in the "Make particles bigger" box) and do not interact
except when they come in contact; then they scatter elastically. The
small box on the right shows the distribution of speeds as the
collisions take place. Read More Go to Site
Votes:0 --> The Legacy of E = mc 2 Einstein's big idea has been enormously influential, in ways that reach far beyond the purely scientific. The Producer's Story Filmmaker Gary Johnstone describes how creativity fuels both art and science. The Equation Today Three
young physicists contemplate how a 100-year-old equation figures into their
careers. Einstein the Nobody The
patent clerk's career prospects looked bleak just before his "miracle year" of
1905. The Theory Behind the Equation Explore
the eureka moment when Einstein came up with special relativity, the theory
that spawned E = mc 2 . Genius Among Geniuses To
rank with Newton or Einstein, you have to reinvent the way we see the world. Relativity and the Cosmos Examine
what many consider Einstein's greatest achievement—general
relativit Read More Go to Site
Votes:0 Log in: Username: Password: I forgot my username or password. Home Physics Workbooks Physics Zone Chemistry Zone About Help Join Physics Lessons Review Links Solutions Physics Lessons, Tutorials and Help The Physics Zone is designed to be a resource for learning introductory level,
Algebra & Trig based, Physics. The Physics Lessons and Review are organized by topic. General Physics Motion Projectile Motion Forces Rotation & Circular Stuff Torque Work & Energy Momentum Electricity & Magnetism Electrostatics Electricity Magnetism Waves, Light & Sound Optics Modern Physics Nuclear Physics Some lessons require plug-ins: Test your computer for plug-ins Some of the physics lessons require a plug-in (extra program for your web browser) in order to see or play the lesson. If you click on a lesson Read More Go to Site
Votes:0 Work and Energy: Chapter Outline || About the Tutorial || Tutorial Topics || Usage Policy || Feedback Lesson 1: Basic Terminology and Concepts Work: Definition and Mathematics of Work Calculating the Work Done by Forces Potential Energy Kinetic Energy Mechanical Energy Power Lesson 2: The Work-Energy Relationship Internal vs. External Forces The Work-Energy Connection: Situations Involving External Forces Situations in Which Energy is Conserved Application and Practice Bar Chart Illustrations Lesson 1: Basic Terminology and Concepts Potential Energy An object can store energy as the result of its position. For example, the heavy heavy ball of a demolition machine is storing energy when it is held at an elevated position. This stored energy of position is referred to as potential energy. Si Read More Go to Site
Votes:0 Questions about R a i n b o w s People have been asking questions about rainbows since the beginning of time. One question frequently asked is, how far away is that rainbow? That is a tough one. How far away are the raindrops that produce it? It is hard to judge how far away a rain cloud is; especially if it's moving. The rainbow's distance extends from the nearest to the farthest raindrops that contribute any part of the colored light. The closest of these raindrops may be miles away. In the case of water spray from a lawn sprinkler in which a rainbow appears, you can reach right in and "touch it"....or so it seems. Many questions are unique to one's cultural history. Where is that pot of gold? That is a good question too. The idea that a pot of gold can be found at the rainbow' Read More Go to Site
Votes:0 Circles of Light: The Mathematics of Rainbows How are rainbows formed? Why do they only occur when the sun is
behind the observer? If the sun is low on the horizon, at what angle
in the sky should we expect to see a rainbow? This lab helps to answer these and other questions by examining a
mathematical model of light passing through a water droplet. Outline Objectives of the Lab How does light travel? Reflection Refraction Rainbows: Exploration Rainbows: Analysis Conclusion Next: Objectives of the Lab This lab is based on a module developed by Steven Janke and published
in Modules in Undergraduate Mathematics and its Applications , 1992. Support for the Curriculum Initiative Project at the University of Minnesota has been provided by a grant from the National Science Foundation (DUE 945609 Read More Go to Site
Votes:0 Relativity in a Wormhole! Introduction E=mc? does not define the theory
of Relativity. Nor does this page define everything. We started our work
on this page in the naive idea that we could pick a few topics and study
them, cut-and-dry. Talk about a rude awakening! IT'S ALL RELATED .
To understand this, you have to know that , and to know that ,
you must have studied these . And so it goes. The image of this page has, therefore,
changed a lot from our origional concept. We still have some main topics
that we'll cover in depth, but there will be much more left untouched than
what we can do. Our homepage would have to be called a 'homenovel' if we
put it all in. So we ask that you explore this page with an open mind,
and if we don't specifically cover your interests, keep searching. It's
all Read More Go to Site
Votes:0 [Text only] Main Page Learning Track Introduction to Light What is Light? Light as a wave Light as a particle Properties of Light Speed of Light Polarization Color What is color? Emitted light Reflected light Mixing colors Optics What is optics? Reflection Refraction Mirrors Lenses Experiments Questions and Answers Glossary References Related Sites Send Us Mail! to our web
site devoted to teaching people about light. We hope you find the information
here useful and interesting. How To Use This Site The information presented here is designed to be viewed as a sequential
tutorial or in any order you want. Below is an outline of the topics
discussed. Introduction to light What is light? Light as a wave Light as a particle Properties of light Speed of Light Polarization Color What is color? Em Read More Go to Site
Votes:0 Basic Nuclear Science Cosmic Connection Presentations Experiments Antimatter Make a Nucleus Glossary Safety Credits Praise Speak With Us Boy Scout Merit Badge Guide to the Nuclear Wall Chart About the Nuclear Wall Chart Privacy and Security Notice Other Interesting Sites Last updated: November 20, 2007 Contact Us The ABC's of Nuclear Science is a brief introduction to Nuclear Science. We look at Antimatter, Beta rays, Cosmic connection and much more. Visit here and learn about radioactivity - alpha, beta and gamma decay. Find out the difference between fission and fusion. Learn about the structure of the atomic nucleus. Learn how elements on the earth were produced. Do you know that you are being bombarded constantly by nuclear radiation from the Cosmos? Discover if there are radioactive p Read More Go to Site
Votes:0 -Advertisement- Access Excellence Classic Collection The Discovery Of Radioactivity: The Dawn of the Nuclear Age Fran Slowiczek, Ed.D and Pamela M. Peters, Ph.D. One hundred years ago, a group of scientists unknowingly ushered in the Atomic Age. Driven by curiosity, these men and women explored the nature and functioning of atoms. Their work initiated paths of research which changed our understanding of the building blocks of matter; their discoveries prepared the way for development of new methods and tools used to explore our origins, the functioning of our bodies both in sickness and in health, and much more. How did our conceptions of atomic properties change? How has that change affected our lives and our knowledge of the world? Atoms and Elements: A Beginning Elements are the buildin Read More Go to Site
Votes:0 Time's Arrow Murphy's Law Activation Energy Chemical
Kinetics Chemical Bonds This site shows that some ancient questions about "things going wrong" in our lives have surprisingly simple answers in modern basic chemistry (even things happening to us which cause that painful cry of "Why me?") Still more important to one's philosophy about life, these chemical ideas can startle us into seeing how fortunate we all are: that things don't go wrong more often! We'll talk mainly about down-to-earth things -- common solid objects of wood, metal, and bone, not about complex computer chips or programs going wrong (nor about personal relations that fall apart. Even chemistry has limits.) Simple things often are involved in annoying or deadly happenings to us: breaking a surfboard ( Read More Go to Site
Votes:0 Home World & News U.S. People Word Wise Science Math & Money Sports Cool Stuff Games & Quizzes Homework Center Fact Monster Favorites American Indian Heritage Month Thanksgiving Say Thank You Advent Hanukkah Pearl Harbor Day Campaign 2008 Presidential Factfile International Space Station Most Polluted Places in the World Harry Potter Page Ranger's Apprentice NFL Team Profiles Fact Monster Blog! Science Projects Daylight Saving Time 2007 Calendar 2008 Calendar Reference Desk Atlas Almanacs Dictionary Encyclopedia FunBrain Encyclopedia thermodynamics thermodynamics, branch of science concerned with the nature of heat and its conversion to mechanical, electric, and chemical energy . Historically, it grew out of efforts to construct more efficient heat engines—devices for extracting usef Read More Go to Site
Votes:0 Think.com ThinkQuest Library Library Competition Web Site Removed from the Library We're sorry, but the site you are trying to access has been permanently removed from the ThinkQuest Library. We apologize for any inconvenience this may cause. Please feel free to visit the ThinkQuest Library to see if one of the other 5000+ Library sites includes the information you need. Go to the ThinkQuest home page. Privacy Policy . Terms of Use . Contact Us Read More Go to Site
Votes:0 QUICKFINDER LOW-GRAPHIC VERSION WHAT'S NEW COMMENT CONTACTS --> HOME RESEARCH PROGRAMMES STUDENTS & FELLOWSHIPS KNOWLEDGE TRANSFER PRESS & MEDIA PUBLIC & SCHOOLS ABOUT PPARC From 1 April 2007 PPARC and CCLRC merged to form the Science and Technology Facilities Council . The PPARC web site is being maintained as an archive resource for a transitional period. All content on this site is no longer current. The page " /Ps/Psc/El/electrons.asp " has been deleted from the PPARC web site. Related information may now be found in the PPARC Science section, an introduction to PPARC science specially written for this web site by acclaimed science writer Nina Hall. The PPARC web site search may also be useful. This page was written on 29 October 2003 Accessibility information Read More Go to Site
Votes:0 Next: Work Up: Physics 1501 - Modern Previous: Questions Work and Energy In this chapter we introduce through Newton's 2nd Law the concepts
of work and energy. This will lead us to a fundamental principle
of physics - the conservation of energy - and to the idea that
energy can be transferred from one form to another. We also through
Newton's 3rd law introduce another fundamental principle - the
conservation of momentum. Work Power Kinetic Energy Potential Energy Gravitational Potential Energy Elastic or Spring Potential Energy Electrical Potential Energy Other types of energy Heat Wave energy Mass energy Conservation of momentum Symmetries and Conservation Laws Questions modtech@theory.uwinnipeg.ca 1999-09-29 Read More Go to Site
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