Video And Tapes: The unit beside the fireplace was designed especially for this room so it fits the space exactly and provides plenty of storage for the TV, video and tapes. Rather than being just a simple rectangular shape it has a rounded edge that makes it fit beautifully into the corner. Rounded corners were modern and innovative in the Thirties and were incorporated in many houses of the period.
There are two common methods of eliminating clutter. In one, called noncoherent moving target indication, the target echoes are identified by the beat that occurs between their frequency and the frequency of the ground return received with them. Since the Doppler shift is very slight, the period of the beat frequency is many times greater than the width of the radar's pulses. As a result, the beat between a particular moving target's echoes and the ground return is evidenced by a change, from one repetition period to the next, in the amplitude of the return received from a given range. To detect moving targets, the video output of the receiver is delayed by exactly one repetition period, and the undelayed video is subtracted from the delayed video.
Wooden slats vary in width from 1 5/8 inches to 2 % inches, depending on the width of the window. They are furnished in all colors and stains with cotton tapes to match or contrast. Water and sun tend to crack the paint, which requires frequent renewal. Slats are also furnished in galvanized steel, plastic, aluminum, and cardboard. The steel slats are sturdy and durable, but heavy. Plastic slats are slightly curved in section and are available in nonfading impregnated colors. Aluminum slats are slightly curved for greater strength, are lightweight, flexible, and furnished in natural finish and many colors, and are perhaps the most satisfactory. Plastic tapes that may be cleaned with a damp cloth may be obtained. Cardboard slats are inexpensive but are not durable. There are also Blinds with removable slats, a convenience for repairing, but requiring a mechanism which sometimes presents difficulties.
For large windows it is advisable to have a center as well as side tapes. Slats are usually hung from a metal or plastic cornice or box which contains the operating hardware. If Venetian Blinds are hung on the face of the trim, they should overlap the jamb 2 inches on each side; if hung between the jambs they should be % inch narrower.
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Photography
