The Audio Cassette

The audio cassette is relatively small and would easily fit in a shirt pocket. It is perhaps 3 inches across, 2 inches high, and 3/4 inch thick. It is slightly thicker at the bottom because of an area which is extended outward another 1/8 inch in the front and back of the cassette. It is apparently constructed of several parts, with the front and the back sections held together by several pins at different points.

The cassette itself is largely transparent, with some obscuring of vision by the fact that the substance which makes up the cassette is tinted and also not designed to be optically efficient. It is transparent enough for you to see inside where a ribbon of material is strung between two capstans, each of which surrounds a hole extending clear through the cassette. One side of the cassette holds all of the material at a point halfway down the height of the cassette, while the outer end of the ribbon reaches to the bottom of the cassette, around another capstan in the lower corner, across a series of open spaces at the bottom to a capstan in the opposite corner, and then extends up so as to be attached to the large opposing capstan halfway up the height of the cassette.

This material inside the cassette is pliable. If you pull it out of the bottom of the cassette, you can see that the side facing downward is shiny, while the opposing side is not. At the very center of the cassette, in the middle of the opening on the bottom of the cassette, the material c

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eaded. The lowest set of holes is the beginning point. At the end of each lace there is a plastic encasement about 1/2 inch long, and this binds the ends so they do not unravel and also provides a sharper piece that will fit easily through the holes in the shoe flaps, facilitating threading. The lace should be threaded through each hole and then extended so that there is an equal length of lace on either side of the shoe. If this is done, there will be an equal length of lace on either side of the shoe when you reach the top, and this is necessary for the process of tying the laces. Begin with the shoe on the left foot. Once the lace is threaded through the bottom set of holes, the next step is to pull the laces out from the shoe, one end in each hand. Take the lace in the right hand and extend it across the tongue and downward through the next hole up on the opposite side. Then pull the remaining lace to the right and hold it there. The lace in the left hand is then to be extended across the diagonal of the opposing lace and is to be threaded downward through the next hole up on the right flap and then pulled taut to the left. You then have an "X" formed by the two laces at the bottom of the flap. The process c

Category: Science - T