The Sonardyne tsunami detection system is based on a Compatt 6 subsea transponder that uses the latest Wideband acoustic signal technology to provide robust through water communications in difficult acoustic conditions.
exists and is an alternate of . The Megalodon was approximately 40 feet (12 metres) long, although fossil records show that they could often grow as large as 78 feet (18 metres). So if you were to stand the Megalodon on its nose it would be as tall as a six story building.
--Anshelm '77 00:03, 8 August 2006 (UTC) This is a contested issue indeed. We can only speculate on the size of a Megalodon on the basis of its teeth but we have never see an actual living adult Megalodon to determine its full length, so no one is 100% perfect in determining the true size of a fully grown Megalodon.