A fax machine was revolutionary for it’s time invented by Alexander Bain in 1843, the evolved fax machine today looks at each line separately, detects the black and white areas and transmits one electric pulse down a phone line to represent the words/picture. It transmits instantly and these pulses are used to control the printer. As paper moves down the bright light shines onto it, white areas reflect lots of light where as the black areas shine little light. A rotating drum like object marks the paper from a laser that fills the ink, at 1,300Hz pen will be applied to the paper and at 800Hz tone takes it off.
Our goal send a audible message to another group to dictate a drawing or piece of artwork. This was achieved by a barrier dividing the class room and getting given instruments to create a key series of beats or volumes for the other side to interpret. We established with the decoder’s, a compass like structure initially that had N,NE,E,SE,S,SW,W,NW and they were then numbered 1-8 which meant what direction the drawing had to go, which was followed by the number of claps, which represented how long the stroke was. 9 bangs we devised would represent a circle, and a shake was a break in the line in the given direction
The opposite group were given the stimulus and carried out the corresponding coding, whereby we decoded their beats, claps and shakes to eventually finish with a pretty accurate outline of a stiletto shoe. The result followed:
Within this system, we found some learning points that were valued and interesting. Firstly, the initial “Handshake” to verify that each other were ready for the transmission was lacking and is something that is needed when transmitting through sound. Sabotage from other groups was evident with the clapping technique. People in other groups soon learned that they could affect our drawing if the strategically clapped when we were listening out for them.Lastly error checking again proved to be something that needed to be prioritised, as a simple mishearing that needed to be repeated couldn’t happen with words or direct viewed signals to each other. This could have proved effective if later on fine details were needed to be added to the drawing. Overall however, the technique proved relatively effective and when the picture was showed to another classmate, they were able to distinguish a shoe.