Describe how a LCD and Plasma TV work. Provide details about the nature of the pixels and contrast ratio, and source of light that each uses. WRITE INTO YOUR OWN WORDS!

A12 mm diameter shaft runs in a plain cylindrical bush 30 mm long that is located in an 18 mm diameter hole in a housing. the shaft-inner bush fit is h8 f and the outer bush-housing fit is h7-p6. make a fully cimensioned sketch of the bush with tolerances. find the maximum and minimum clearance or interference for both fits on the inner and outer diameters of the bush