We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
PERSISTENCE OF VISION A very important phase of the research for perfecting the true representation of nature was to discover the means by which motion could be imparted to pictures. The reproduction of motion is an accomplished fact, brought to a degree of perfection seldom equaled by any other discovery in the short lapse of time since its discovery. Analysis and synthesis are the means by which the reproduction of motion is obtained, as they are the underlying factors upon which modern color photogra phy is dependent. Analysis by the resolution of movement into a series of secondary movements constituting a given whole is accomplished by photographic means, and synthesis by putting together the secondary movements thus obtained to form the whole desired movement, by means of pro jection. This description of the essentials of moving pictures may seem rather abstruse but can be readily visualized. Imagine the moving of an arm from a dangling po sition to an upraised one and consider this movement from the initial to the final position, as a whole move ment. We can easily visualize innumerable intermediary positions that the arm is to pass through to reach the final one. As the whole movement of the arm is logically a continuous one the number of intermediate positions is infinite. The problem that was faced by the researcher on the subject, was to find out how many of these interme diate positions were to be photographically registered, so that when viewed in rapid succession they would give