The text discusses various objects, such as pucks and ORCPs, and their material compositions. It also mentions the use of these objects in sports, specifically in hockey. The designs of these objects have changed over time, with the first pucks being made from crushed rubber balls. The puck used in present day is made of hard rubber and is 1 inch tall and 3 inches in diameter. ORCPs consist of a π-conjugated oligomer attached to a flexible, soluble polymer chain. These materials are often used in sports, such as hockey, and can make great gifts for hockey enthusiasts. The game of hockey consists of three parts called periods, with the puck being thrown in at the beginning of each period. Other topics mentioned in the text include the composition of bones, the material used in the creation of tea bags, and the properties of UHMWPE and silicon.