EAN: 9783319479903

A CRITICAL EDITION OF IBN AL-HAYTHAMS ON THE SH...

This book provides the first critical edition of Ibn al-Haytham's On the Shape of the Eclipse
with English translation and commentary  which records the first scientific analysis of the
camera obscura. On the Shape of the Eclipse includes pioneering research on the conditions of
formation of the image  in a time deemed to be committed to aniconism. It also provides an
early attempt to merge the two branches of Ancient optics-the theory of light and theory of
vision.What perhaps most strongly characterizes this treatise is the close interaction of a
geometric analysis of light and experimental reasoning. Ibn al-Haytham conducted his
experiments in a systematic way by varying all that could be changed: the shape and size of the
aperture  the focal length of the camera obscura  the distance and shape of the celestial
bodies. This way  he achieved a thorough understanding. This work represents a decisive step in
both the history of optics and the application of the experimental method that was just as
efficient in medieval Islam as today.

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