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
Compass One and a redesigned interior layout. The Sengkang Public Library, which opened on 2017, occupies a portion of Levels 3 and 4. There will also be a play deck comprising a wet and dry playground at Level 4. The returning tenants are Cold Storage, Kopitiam and Japan Home. Additionally, Rubi Shoes opened one store in Compass One at the same opening, together with Cotton On Body and Cotton On. Compass One Shopping Mall is located next to the Sengkang MRT/LRT station, Sengkang Bus Interchange and Compassvale Bus Interchange. Compass One Compass One (formerly known as Compass Point) is a suburban shopping