The first website (1), created by Pamela J. W. Gore at Georgia Perimeter College, provides a concise explanation of the geologic principles of radiometric dating. Students can learn about the fundamentals of half lives, isotopes, and dating minerals. Secondly, the Museum Victoria offers a useful overview of radioactive decay of Potassium-40 and Carbon-14 (2). The website discusses the benefits of...

This factsheet from the US Geological Survey gives information on the Seabed Observation and Sampling System (SEABOSS). SEABOSS uses two video cameras, a still camera, and a modified Van Veen sediment sampler. The short factsheet (.pdf format) includes color images of the instrument and examples of images taken by it.