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3852 results for "volunteers work"
  Berniker, Lily   Blog Post Decades of Discovery on St. Catherines Island David Hurst Thomas explains how archaeological finds on St. Catherines Island are proving history books wrong. March 12, 2012   Timing is Everything     Oppenheimer, Rebecca   Educator Materials Profile: Ole Roemer and the Speed of Light While studying one of Jupiter's moons, Ole Roemer happened upon the first good estimate of the speed of light. Before his 1676 discovery,... Educator Materials Case Study: Friedrich Bessel and the Companion of Sirius Bessel discovered Sirius' unseen companion star long before technology allowed us to see Sirius B and even longer before quantum... Article Light and Dark in the Sea Only the top 200 meters (656 feet) of the ocean get enough light to support plants. Below 1,000 meters (3,281 feet), there's complete... Article Weather Conditions Over the Deep Seas What does it take to send a crew to the bottom of the ocean? A sub with 14-inch-thick walls made of a titanium-steel alloy—and a... Video Glossary   Educator Materials Zoology From fireflies to humpback whales, learn about animals and the scientists who study them.   Leadership Breakfasts/Family Day Assistant Principal Patricia Catania tells how the program enriched science learning at her school, and the development of a bilingual... Article Biodiversity in the Crossfire See how scientists are racing to reveal Vietnam's biological riches before many species and their habitats disappear from the country's...