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
Are We There of 86, based on 36 reviews, indicating "universal acclaim". At "Rolling Stone", Will Hermes rated the album four stars out of five, remarking how Van Etten's "darkness contains multitudes" just as Nick Cave's does, and he states Van Etten's latest release is "magnificent... which grows her trademark examinations of romantic decay to cathedral-like scale." Fred Thomas of AllMusic rated the album four stars out of five, indicating how Van Etten "can deliver her songs with a powerful, borderless command." Due to its high rating of 86 on Metacritic, Are We There became the fifth most critically acclaimed album of 2014.