Semaphore Flag Signalling
Semaphore Flag Signals. This app wil..
基本信息
- 更新日期:
- 版本:
- 4.1
- 大小:
- 6.3 MB
- 类型:
- 教育
- 平台:
- iOS
- 评分:
- 发布日期:
- 2017-12-19
- 价格:
- ¥6
- 开发者:
- Tony Roden Entertainment
Semaphore Flag Signalling应用截图
Semaphore Flag Signalling应用简介
Semaphore Flag Signals.
This app will teach you all about the Semaphore Flag Signal System.
The Semaphore flag signaling system is an alphabet signalling system based on the waving of a pair of hand-held flags in a particular pattern.
The flags are usually square, red and yellow, divided diagonaly with the red portion in the upper hoist.
The flags are held, arms extended, in various positions representing each of the letters of the alphabet. The pattern resembles a clock face divided into eight positions: up, down, out, high, low, for each of the left and right hands (LH and RH) six letters require the hand to be brought across the body so that both flags are on the same side. n ther first circle, the letters A to C are made with the right arm, and E to G with the left, and D with either as convenient. In the second circle, the right arm is kept still at the letter A position and the left arm makes the movements; similarly in the remaining circles, the right arm remains fixed while the left arm moves. The arms are kept straight when changing from one position to another.
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