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Introduction to polarizing light microscopy     Guide through the basics of polarizing light microscopy, in particular as it pertains to the identification of pigments. It includes description of optical microscopy basics, microscope basics, and sample descriptions of pigments according to criteria such as measurement, shape, color, transparency, and homogeneity. Includes a practice session. From An Introduction to Polarizing Light Microscopy http://www.sewanee.edu/chem/Chem%26Art/MS/index.htm

NIST Reference on Constants, Units and Uncertainty     Values for certain fundamental physical constants and articles about selected constants. From Fundamental Physical Constants from NIST http://physics.nist.gov/cuu/Constants/index.html

Robot invasion     Robots on Mars. And here on Earth. On July 4th, 1997, the spacecraft called Mars Pathfinder parachuted and bounced onto the Martian surface. From Robot vehicles http://whyfiles.org/044robot/

Talking trash     Recycling. Bright ideas and some questionable ones. About recycling paper and various chemicals. From Recycling revisited http://whyfiles.org/063recycle/

Immunology     Introduction to basic immunology, case studies, and activities design to achieve understanding of the Elisa assay and western blotting analysis. From The Biology Project: Microbiology & Immunology http://www.biology.arizona.edu/immunology/immunology.html

Better hair through chemistry     Having a bad hair day? The science of hair can help straighten out unruly locks and crazy curls. I'm having a Bad Hair Day. Well, to be honest, I'm having a Bad Hair Week. I'm due for a haircut and my hair has reached that stage where charmingly tousled becomes downright unkempt. Fortunately, I am not without resources in this battle with my unruly locks. Science is on my side. From Exploratorium Magazine: Hair http://www.exploratorium.edu/exploring/hair/

Sln.lab     Northern lights: learn how to make an aurora, and a cloud chamber. Learn about experiments that led to a neutralization formula and make acid rain. From SLN.Laboratory http://www.jsf.or.jp/sln/laboe.html

Lightning: the Shocking Story     Get the science and the stories behind the bolts that strike our earth a hundred times every second. From Lightning @ nationalgeographic.com http://www.nationalgeographic.com/lightning/index.html

Bombing of America     Investigative process that occurs following a bomb explosion. Among the subjects discussed are the scientific methods used to identify the chemical content of the bomb, tragic facts about juvenile bombers, and analysis of the evidence obtained from the Unabomber From NOVA Online/Bombing of America http://www.pbs.org/wgbh/nova/bombing/

Alien worlds     Constellations of stars and the origins of planets. Find out what signs of life beyond Earth have been found, and what would disclose life in outer space for sure. From NOVA Online/Hunt for Alien Worlds http://www.pbs.org/wgbh/nova/worlds/

Scorecard     Find environmental information about your community: learn how bad the pollution is, where the toxic chemicals come from, what the health risks are, and what actions you can take. From Scorecard Home http://www.scorecard.org/

Discovery of the Electron     Read, see, and hear about J. J. Thomson's 1897 experiments, which helped bring understanding of the electron as a fundamental unit of matter. From The Discovery of the Electron http://www.aip.org/history/electron/

Heisenberg: Quantum Mechanics and the Uncertainty Principle     Werner Heisenberg was one of the greatest physicists of the twentieth century. He is best known as a founder of quantum mechanics, the new physics of the atomic world, and especially for the uncertainty principle in quantum theory. He is also known for his controversial role as a leader of Germany's nuclear fission research during World War II. From Heisenberg / Uncertainty Principle - Werner Heisenberg and the Uncertainty Principle http://www.aip.org/history/heisenberg/

Amber: Window to the Past     For more than 11,000 years, people have collected, traded, carved, and examined amber; yet much about the substance remains a mystery. For example, no one is certain how amber manages to preserve the organisms entrapped in it (called "inclusions") so exquisitely. It is thought that terpenes, compounds that become linked as the resin hardens, help to preserve the inclusions by dehydrating the organisms and killing any bacteria that might cause decay. From American Museum of Natural History http://www.amnh.org/exhibitions/amber/

Blazing a Genetic Trail     Colorful web book describing the excitement in biomedical research as scientists discover the causes of baffling diseases: abnormal genes. Includes: family studies; the Human Genome Project; and how to conquer hereditary diseases like cystic fibrosis. From HHMI's Blazing a Genetic Trail: Research on Mutant Genes and Hereditary Diseases. http://www.hhmi.org/genetictrail/

Transistorized!     The transistor: the most important invention of the 20th century. Learn about the scientific bases of how transistor works. From Transistorized! The History of the Invention of the Transistor - Home Page http://www.pbs.org/transistor/index.html

Macrogalleria     Polymer molecules - how they are a part of many things, how they look up close, and how they are created. From The Macrogalleria - a cyberwonderland of polymer fun http://www.psrc.usm.edu/macrog/index.htm

Origins and Ancient History of Wine     How Museum excavators uncovered the world's oldest wine jar and Museum scientists determined its contents. Find out why the grape remains ever popular - cloned over and over again from its ancient beginnings. Fermented beverages have been preferred over water throughout the ages: they are safer, provide psychotropic effects, and are more nutritious. Some have even said alcohol was the primary agent for the development of Western civilization, since more healthy individuals (even if inebriated much of the time) lived longer and had greater reproductive success. From “The Origins and Ancient History of Wine”@ University of Pennsylvania Museum of Archaeology and Anthropology http://www.upenn.edu/museum/Wine/wineintro.html

How stuff works     How everyday stuff works such as TV, refrigerator, airplane, solar cells and much more. From HowStuffWorks - Learn how Everything Works! http://www.howstuffworks.com/

Garbage     Waste disposal handling and what can be done to improve garbage processing and save environment. From Exhibits Collection -- Garbage http://www.learner.org/exhibits/garbage/

Kaboom!     Anatomy of a Firework, the chemical makeup of pyrotechnic display, and an interview with Stacey Loizeaux, Demolition Woman. Requires plug-in, Macromedia Shockwave. From NOVA Online/Kaboom! http://www.pbs.org/wgbh/nova/kaboom/