Diamonds: The Science Behind the Sparkle

This illustrated essay from the NOVA Web site explains why the atomic structure of a diamond slows down light and produces a sparkle more brilliant than from any other colorless substance.

Discovering Air

Our understanding about the air we breathe has changed dramatically through time. This illustrated timeline from the NOVA Web site tracks the changing thought on air and the creation of the Periodic Table of the Elements.

DNA Fingerprint Photos

These photographs supplied by Genelex Corporation depict actual DNA fingerprints and show the types of information that can be gleaned from them.

DNA Makes History

Read how DNA was used to solve the mystery of the Romanov family's execution. From Human Genetics: Concepts and Applications by Ricki Lewis.

DNA on the Witness Stand

In this article, Dr. Eric Lander of the Human Genome Project comments on the use of DNA as an identification tool -- the theoretical versus the practical results.

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Dr. Jay Giedd: The Adolescent Brain

In this transcript from FRONTLINE: "Inside the Teenage Brain," neuroscientist Dr. Jay Giedd discusses new research on brain development in teenagers.

Einstein: A Timeline of His Life

This illustrated timeline from the NOVA Web site follows Albert Einstein's life, including 1905, his "Miracle Year," during which he developed his Special Theory of Relativity and the equation, E=mc².

Einstein: How Smart Was He?

This essay from the NOVA Web site explores the impact Einstein made on physics and most everything we know about the cosmos.

Evidence for Evolution

In this Evolution WebQuest you will investigate a variety of types of evidence for evolution.

Evolution on Double Time

This excerpt from Evolution: The Triumph of an Idea by Carl Zimmer describes how gene duplication may have been the key to the rapid evolution of the early stages of life on Earth.

Facts About Radiation

This document from the FRONTLINE Web site offers examples of everyday exposure to radiation.

FAQs About Nuclear Power

Nuclear physicist, Dr. Charles Till, answers questions about nuclear power in this interview from the FRONTLINE Web site.

Farallon Islands Map

With this map from QUEST produced by KQED, explore what it is like to live on the rocky remote Farallon Islands for both birds and the scientists who explore them.

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Finch Beak Data Sheet

This graphic from Ecology and Evolution of Darwin's Finches by Peter Grant presents data from the Galapagos Islands, showing that a severe drought put selective pressure on the population of Darwin's finches and resulted in a change in the average beak size in the next generation.

Fission and Reprocessing: How They Work

This video-enhanced document from the FRONTLINE Web site explains how nuclear fission and nuclear reprocessing work.

Forecasting Suitable Habitat for North American Wolverines From the Present to 2100

Learn what plants and animals must do in order to survive significant environmental changes.

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Forensics

Find out how DNA profilers analyze bits of tissue to identify human remains. From NOVA: "Lost on Everest" Web site.

Galileo: His Place in Science

Einstein called Galileo the "father of modern physics." This media-rich essay from the NOVA Web site looks at Galileo's quest to understand the mathematics of motion.

Galileo: Timeline of His Life

This illustrated timeline from the NOVA Web site turns back the clock to the late 1500's to relive the dramatic life of one of the world's most renowned scientists.

Genetic Art

Take a peek at the artistic side of science in this virtual exhibit, featuring work by Eva Sutton, Alexis Rockman and Sidney Harris.