And Video Cassettes: Creamy walls give a light, sunny feel to this room. The unit that houses the TV and video cassettes has also been painted cream, and plain cream curtains hang at the windows. A very Thirties touch of colour has been added by a thick border of red and dark green paint that runs around the walls and skirting board, framing the room and lifting the cream colour scheme.
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.
Where children are perceived as active participants in the learning process, the curriculum will reflect positive teacher and pupil interactions which recognise the value of the home language. Notices and labels printed in different scripts, dual language texts in the book corner, and recordings of songs and rhymes on audio cassettes can offer a meaningful context for bilingual children in school.
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Photography
