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Digital Video Galleries

Collections of time-lapse sequences featuring common chemical crystals undergoing melting transitions and pond life captured with the MIC-D in full-motion video are presented in this gallery. Video sequences are presented either as interactive Java tutorials or in Windows Media Player, and available in several playback formats to match a variety of Internet connection speeds.

Chemical Crystals - Chemical compounds can exist in three basic phases: gaseous, liquid, or solid. Gases consist of weakly bonded atoms and expand to fill any available space. Solids are characterized by strong atomic bonding and have a rigid shape. Most are crystalline, having a three-dimensional periodic atomic arrangement. Some, such as glass, lack this periodic arrangement and are noncrystalline, or amorphous. Liquids have characteristics that fall in between gases and solids. This cinemicrographic collection shows time-lapse movies of various chemical compounds as they change physical states.

Pond Life - Freshwater ponds provide a home for a wide variety of aquatic and semi-aquatic plants, insects, and animals. The vast majority of pond inhabitants, however, are invisible until viewed under the microscope. Beneath the placid surface of any pond is a microscopic metropolis bustling with activity as tiny bizarre organisms pursue their lives; locomoting, eating, trying not to be eaten, excreting, and reproducing. In this collection of digital movies, observe the activities of microscopic organisms taken from a typical North Florida pond.

Contributing Authors

Cynthia D. Kelly, Omar Alvarado, John D. Homan, Thomas J. Fellers and Michael W. Davidson - National High Magnetic Field Laboratory, 1800 East Paul Dirac Dr., The Florida State University, Tallahassee, Florida, 32310.


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