Joe de Lappe - Research Away Day
As part of Joe de Lappe's presentation at the Research Away Day 29th October, there were a few slides on Chronocyclegraphs. Invented by Frank and Lilian Gilbreth 1914
small light bulbs were attached to finger tips, to capture motion patterns with light.
https://nptel.ac.in/courses/112107142/7
"Cycle graph and Chrono cycle graphThese are the techniques of analyzing the paths of motion made by an operator and were originally developed by the Gilbreths. To make a cycle graph , a small electric bulb is attached to the finger, hand, or any other part of the body whose motion is to be recorded. By using still photography, the path of light of bulb (in other words, that of the body member) as it moves through space for one complete cycle is photographed. The working area is kept relatively less illuminated while photograph is being taken. More than one camera may be used in different planes to get more details. After the film is developed, the resulting picture (cycle graph) shows a permanent record of the motion pattern employed in the form of a closed loop of white continuous line with the working area in the background. A cycle graph does not indicate the direction or speed of motion."
http://we-make-money-not-art.com/the_chronocyclegraph/
small light bulbs were attached to finger tips, to capture motion patterns with light.
https://nptel.ac.in/courses/112107142/7
"Cycle graph and Chrono cycle graphThese are the techniques of analyzing the paths of motion made by an operator and were originally developed by the Gilbreths. To make a cycle graph , a small electric bulb is attached to the finger, hand, or any other part of the body whose motion is to be recorded. By using still photography, the path of light of bulb (in other words, that of the body member) as it moves through space for one complete cycle is photographed. The working area is kept relatively less illuminated while photograph is being taken. More than one camera may be used in different planes to get more details. After the film is developed, the resulting picture (cycle graph) shows a permanent record of the motion pattern employed in the form of a closed loop of white continuous line with the working area in the background. A cycle graph does not indicate the direction or speed of motion."
http://we-make-money-not-art.com/the_chronocyclegraph/
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