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Find in this WebRing sites from around the world pertaining to the marine electronics industry and related topics. Pictured on this page: a "giant box corer (spade corer); used on research vessels to take undisturbed surface samples (50 x 50 cm, 50 cm deep) from ocean floor sediments. Developed by USNEL (United States Navy Electronics Laboratory) during the nineteen seventies. This image shows the deployment of the corer from the research vessel POLARSTERN in the Southern Ocean off the shelf ice edge," photographed in 1985 by Hannes Grobe of the Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany. On the NavBar: marine radar, at the Musée des Arts et Métiers in Paris, copyright 2005 by David Monniaux.