You can refill them and I encourage you to do so. This video explains how to refill the pencil, complete with close-ups. Don't throw them away, refill them! Remember, the Paper-Mate Sharpwriter pencil uses 0.7mm lead. Standard Pentel lead will work excellent. The video was recorded with a Sony EVO-210 Video 8 8mm VCR.
Uses of Carbon. Carbon (in the form of coal, which is mainly carbon) is used as a fuel. Graphite is used for pencil tips, high temperature crucibles, dry cells, electrodes and as a lubricant. Diamonds are used in jewelry and â because they are so hard â in industry for cutting, drilling, grinding, and polishing.
Advertisement. Magnetite has a wide variety of uses, both domestic and industrial. It is one of several oxides of iron and has strong magnetic properties. Magnetite is a significant ore of iron and as such, is distinguished from other ores of iron by its tendency to attract and get attracted to magnets.Before we jump towards discussing magnetite uses, let's take a closer look at magnetite itself.dvertisement. Magnetite has a wide variety of uses, both domestic and industrial. It is one of several oxides of iron and has strong magnetic properties. Magnetite is a significant ore of iron and as such, is distinguished from other ores of iron by its tendency to attract and get attracted to magnets.