These interruptions are recorded by the magnetometer. A vertical timber set in a ship, used primarily to carry the sails, radar, or radio. Examples include clothing, dishes, buildings, pictures, and even automobiles. Archaeologists study material culture of the past. Mylar is made of a plastic like material that doesn't break down in water and is very useful for recording information in wet environments.
Archaeologists use sheets of mylar underwater for paper.
Organic material is anything that used to be alive, for example wood, bone and leather. The left hand side of a ship when facing the bow. A harbor with facilities for berthing ships, embarkation and disembarkation of passengers, and the loading and unloading of cargo. Underwater archaeologists are often confronted with low visibility and one way of recording a site under these conditions is with photomosaics. Refers to the time period before humans wrote.