Lacrosse is a contact team sport played between two teams using a small rubber ball (62.8-64.77 mm, 140-147 g) and a long-handled stick called a crosse or lacrosse stick. It is often considered as a rough sport, although injuries are less frequent than in American football and other contact sports.
Section I: Body Casting Alginate Alginate is a temporary, highly absorbent, biodegradable skin safe mold making material made from algae. It is a powder that when mixed with water will set to a firm yet rubbery consistency. Alginate takes impeccable detail from skin and castings are incredibly life-like. Fibergel: designed with fibers mixed into the alginate. It is used to mold objects with severe undercuts where strength and shrink resistance is needed â Set time: 4-5 minutes. Section II: A Word About Mold Making and Casting Mold Making and Casting are not entirely exact sciences.
1 Biodegradable polymers and plastics Andrej KrÅ¾an. 2 Biodegradation Biodegradation or biotic degradation is a specific property of certain plastic materials-that is, of the polymers these materials are made of.It is a process by which a polymer material decomposes under the influence of biotic components (living organisms).aterials. The susceptibility of a polymer or a plastic. material to biodegradation depends exclusively. on the chemical structure of the polymer. For this. reason, whether the polymer is made of. renewable resources (biomass) or non-renewable (fossil) resources is irrelevant to bio-. degradability.