Record of Time

Enter the exciting world of dating ... fossil dating, that is. From Record of Time by anthropologist Dennis O'Neil.

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Relativity and the Cosmos

This illustrated essay from the NOVA Web site introduces the basic concepts of Einstein's General Theory of Relativity and what we know about cosmology as a result.

Rev. C. T. Vivian

In this transcript of an interview for Eyes on the Prize, the Reverend C. T. Vivian remembers his leadership role in the Civil Rights Movement and the risks civil rights activists took in challenging segregation.

Rev. Fred Shuttlesworth

This oral history transcript from the Birmingham Civil Rights Institute documents the tumultuous life and leadership of the Reverend Fred Shuttlesworth, who survived a bomb attack that destroyed his home.

Sagan on Time Travel

Astronomer Carl Sagan discusses the possibility of time travel in this audio-enhanced interview from the NOVAWeb site.

Seahorse Basics

This diagram from the NOVA: "Kingdom of the Seahorse" Web site reveals some of the more remarkable traits of this enigmatic creature.

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Sea life is troubled by noise

This article from Science a GoGo describes the risks that increasing noise pollution in ocean waters may pose to the creatures that live there. Once you read it, you'll never tap on a fish tank again!

Segregation Ordinances: Birmingham, AL

This document from 1951 spells out Birmingham's segregation ordinances, the laws requiring the separation of the races.

Sound Waves Underwater: Experiment with Sonar

This animation from the NOVA Web site describes how sonar uses sound waves to "see" underwater.

Stem Cell Debate

This essay from the NOVA "Life's Greatest Miracle" Web site explores the debate over the use of embryonic stem cells in scientific research.

Stories in the Ice

Take a journey back through time, using ice cores to learn about the Earth's climatic history. From the FRONTLINE/NOVA: "What's Up with the Weather?" Web site

Stories in the Ice

Take a journey back through time, on the NOVA/FRONTLINE Web site, using ice cores to learn about Earth's climatic history, including evidence of global warming and nuclear activity.

String Theory: A Theory of Everything Essay

In this essay from the NOVA Web site, string theorist Brian Greene introduces the basic ideas behind string theory and how it might help us better understand the universe.

String Theory: Elementary Particles

This illustrated essay from the NOVA Web site looks at the fundamental forces and particles that make up all matter.

Ted Daeschler and Neil Shubin: Early Tetrapod Fossils

In this transcript of an interview filmed for Evolution: "Great Transformations," Ted Daeschler and Neil Shubin describe the discovery and significance of some of their key fossil finds.

Tidal Curiosities

This illustrated essay from the NOVA Web site answers questions about irregularities in the tides.

The Transforming Leap, from Four Legs to Two

John Noble Wilford, a New York Times science writer, outlines various hypotheses on the origin of bipedalism.

Understanding Gene Testing

In this article by the National Cancer Institute and the National Center for Human Genome Research, find answers to your questions about genetic testing.

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Vanessa Venable

In this transcript of an interview for Eyes on the Prize, Vanessa Venable describes the impact of school closings in Prince Edward County, Virginia from 1959-1964.

Viewpoints: Harvest of Fear

What do the experts say about genetically modified (GM) foods? Read these interview excerpts from the FRONTLINE/NOVA: "Harvest of Fear" Web site to find out.