Compass has a half-life of only about 12 years, so a compass that contains 120 mCi of tritium when new will contain only 60 when it is 12 years old, 30 when it is 24 years old, and so on. Consequently, the illumination of the display will fade. Mariners' compasses can have two or more magnets permanently attached to a compass card, which moves freely on a pivot. A "lubber line", which can be a marking on the compass bowl or a small fixed needle, indicates the ship's heading on the compass card. Traditionally the card is divided into thirty-two points
Baltic Compass Baltic Compass Baltic Compass is a transnational project which aims to reinforce connection between landuse, environment and agriculture, leading to healthier ecosystems and a more competitive Baltic Sea region. The name Baltic Compass comes from the letters from the whole name of the project: Comprehensive Policy Actions and Investments in Sustainable Solutions in Agriculture in the Baltic Sea Region. Baltic Compass aims to find ways how the agricultural sector in the Baltic Sea Region can produce the daily food required by the region’s 90 million inhabitants and at the same time preserve the Baltic Sea. The large catchment area and