Plastics The term “plastics” includes materials composed of various elements such as carbon, hydrogen, oxygen, nitrogen, chlorine, and sulfur. From the construction of new homes to the retrofit and renovation of commercial buildings, and from hospitals to schools, architects and designers rely on plastics to help maximize energy efficiency, durability and performance. versatile plastics inspire countless innovations that help make life better, healthier and safer every day. Cellulose was heated with chemicals and resulted in a new material that was extremely durable. The term “plastics” encompasses all these various polymers. Plastics are valuable materials and they should be recycled. Luckily, it’s never been easier to do so. Learn how to recycle plastics, and discover our recycling events and opportunities. Marble Construction marble is a stone which is composed of calcite, dolomite or serpentine which is capable of taking a polish.[10] More generally in construction, specifically the dimension stone trade, the term "marble" is used for any crystalline calcitic rock (and some non-calcitic rocks) useful as building stone. For example, Tennessee marble is really a dense granular fossiliferous gray to pink to maroon Ordovician limestone, that geologists call the Holston Formation. Marble dust is combined with cement or synthetic resins to make reconstituted or cultured marble. The appearance of marble can be simulated with faux marbling, a painting technique that imitates the stone's color patterns. Marble is re-imagining urban logistics We are creating a fleet of intelligent courier robots to reliably and securely transport the goods that people need and want in a way that is accessible to everyone. Marble’s robot is perfectly suited to transport the essentials including groceries, meals, and medicine.