A fuel cell is a device that uses hydrogen (or hydrogen-rich fuel) and oxygen to create electricity. Fuel cells are more energy-efficient than combustion engines andd the hydrogen used to power them can come from a variety of sources. If pure hydrogen is used as a fuel, fuel cells emit only heat and water, eliminating concerns about air pollutants or greenhouse gases. This site from the U.S. Department of Energy contains an animated Flash illustration of how fuel cells work.

Fusion is the process which powers our Sun. Chapters: What is fusion? Conditions for a fusion reaction. magnetic plasma confinement - The Tokamak. Heating the plasma. Measuring the plasma. Fusion as a future energy source.

Resources for learning and teaching strategy for business and life. Lecture notes: online notes for teaching game theory. Books: reviews of textbooks. Interactive materials: Java applets and online games. Quizzes and tests: evaluation materials, print and online. Pop culture: game theory in the popular press. Games strategy games to test your skill. Dictionary: glossary of game theory concepts.

Common Compound Library: A searchable database of over 800 common compound names, formulas, structures, and properties. Companion Notes: Hyperlinked notes and guides for first semester general chemistry. Featured articles and tutorials. Toolbox: Interactive graphing, popup tables, and calculators. Tutorials: Index of self-guided tutorials, quizzes, and drills on specific topics. Just Ask Antoine! Antoine answers general chemistry questions that you forgot to ask. Frequently Asked Questions: Answers and hints for over 400 frequently asked questions. Glossary: A searchable, crosslinked collection of over 1000 chemical terms; now with audio pronunciations. Trivia Quiz: 45 randomly selected trivia questions. Chemistry Exam Survival Guide: Skills checklists and online self-grading examinations.

This project began in the late 1980's as a means to supplement (or in some cases to largely replace ) the conventional textbook treatments of various topics in courses in General Chemistry and Environmental Chemistry. The motivation was in most cases to provide alternatives to what seem to be the rather shallow standardized treatments of certain topics presented in many commercial textbooks. The site contains reference text chapters, tutorials, advanced stuff, information for teachers, and more.

Cells, DNA, genes, chromosomes, and proteins.

Genetics Home Reference is the National Library of Medicine's web site for consumer information about genetic conditions and the genes or chromosomes responsible for those conditions.

A huge listing of links to sites related to the genome. Includes: Genome Projects Monitor Pages; Genome Sequencing Centers; General Genome Databases; Genome Analysis; Databases; Other Genome Projects; Infectious Diseases; Genomics-Biotech companies; General Databases; Protein Family Databases; Biocomputing servers; Sequence-Reference Retrieval Systems; Sequence Homology - Allignments; Motifs -Domains; Metabolic Pathways; Protein Structure; Phylogenetic analysis; Protein Interactions; Gene; DNA - RNA

The Geographic Data in Education (GEODE) Initiative is dedicated to the improvement of Earth and environmental science education through the use of data visualization and analysis tools to support inquiry-based pedagogy. Through an integrated program of research and development, the GEODE Initiative is advancing our understanding of learning in the Earth and environmental sciences, design of curriculum and educational software, and teacher professional development. Equally important, the GEODE Initiative is creating useful and useable products for students and teachers at levels ranging from middle school through college.

A comprehensive geology education website that includes a plate tectonics tour, a geology dictionary, geology job listings, a geologic time scale, links to satellite images, geology field camps, and more.

Though climate change isnt new, the study of how human activity affects the earths climate is. The exploration of climate change encompasses many fields, including physics, chemistry, biology, geology, meteorology, oceanography, and even sociology. At this Web site, you can explore scientific data relating to the atmosphere, the oceans, the areas covered by ice and snow, and the living organisms in all these domains. Youll also get a sense of how scientists study natural phenomenahow researchers gather evidence, test theories, and come to conclusions.

Higher temperatures threaten dangerous consequences: drought, disease, floods, lost ecosystems. And from sweltering heat to rising seas, global warming's effects have already begun. But solutions are in sight. We know where most heat-trapping gases come from: power plants and vehicles. And we know how to curb their emissions: modern technologies and stronger laws. The Natural Resources Defense Council (NRDC) is working to put these fixes in place. By shifting the perception of global warming from abstract threat to pressing reality, and promoting online activism. By pressing businesses to use less energy and build more efficient products. And by fighting for laws that will speed these advances.

GreenFacts is an independent, multi-stakeholder non-profit organization based in Brussels. Its mission is to provide non-specialists with unbiased scientific information on environment and health matters through the Internet. We provide faithful summaries of authoritative scientific consensus documents on environment and health issues. They are peer-reviewed and published under the authority of a Scientific Board of independent experts. Moreover, independence from specific interests is ensured by multistakeholder governance and funding rules.

Hands-on-CERN (HoC) is an educational project at the scientific frontier of physics. It is aimed at teachers and high school students studying natural sciences. The purpose of this project/course is to increase understanding of the most fundamental processes inside matter, and to explain modern research about particle collisions.

IN 1999, legendary theoretical physicist Hans Bethe delivered three lectures on quantum theory to his neighbors at the Kendal of Ithaca retirement community (near Cornell University). Given by Professor Bethe at age 93, the lectures are presented here as QuickTime videos synchronized with slides of his talking points and archival material. ntended for an audience of Professor Bethe's neighbors at Kendal, the lectures hold appeal for experts and non-experts alike. The presentation makes use of limited mathematics while focusing on the personal and historical perspectives of one of the principal architects of quantum theory whose career in physics spans 75 years.