1 The molten glass can be poured into a mold and let cool. 2  This method was used by the Egyptians, and it is also how many lenses are created today. 3  A large amount of molten glass can be gathered at the end of a hollow tube, which is then blown into while the tube is turned.
Indirect costs vary depending on the indirect cost base. Indirect costs are assessed either on a Total Direct Cost (TDC) basis or a so-called Modified Total Direct Cost basis (MTDC). Check sponsor guidelines for direction.
There are two types of indirect costs. One are the fixed indirect costs which contains activities or costs that are fixed for a particular project or company like transportation of labor to the working site, building temporary roads, etc.ndirect costs may be either fixed or variable. Indirect costs include administration, personnel and security costs. These are those costs which are not directly related to production. Some indirect costs may be overhead.