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
How Many Licks? Neptunes has additional vocals from American artists Kelis, Lil' Cease, and Snoop Dogg. "How Many Licks?" was praised by music critics after its release and in retrospective reviews; the Neptunes remix also received positive reviews. However, African-American studies professor Mark Anthony Neal criticized the song's treatment of black female sexuality. Commentators compared its content to Trinidadian-American rapper Nicki Minaj's 2014 single, "Anaconda". "How Many Licks?" peaked at number 75 on the "Billboard" Hot 100 chart and charted in several other countries, but was not as commercially successful as Lil' Kim's previous releases. The song's music video was directed by Francis