the elasticity of blood vessels in the movement of blood in the aorta in a continuous flow to the capillaries and arterioles. Two-point Threshold Technique This technique helped map sensitivity and touch acuity on the body using compass technique. Points of a compass would be set at varying distances in order to see at what distance are the points of the compass perceived as two separate points instead of one single point. Weber also wrote about and tested other ideas on sensation including a terminal threshold, which is the highest intensity an individual could sense before the sensation could not be detected any longer. Weber’s Illusion Weber’s Illusion is an "experience of divergence of two points when stimulation is moved over insensitive areas and convergence of two points when moved over sensitive areas". Weber’s use of multivariate experiment, precise measurements, and research on sensory psychology and sensory physiology laid the groundwork for accepting experimental psychology as a field and providing new ideas for fellow 19th century psychologists to expand. Later career In 1817, Weber was appointed as the Dozent of Psychology at Leipzig. He moved on to become Professor of Anatomy the following year (1818). He held the position for many years, finally moving to Professor of Psychology towards the end of his life. In his later life, Weber became less involved in testing and experimenting, although he was still interested in sensory physiology. Ernst Heinrich Weber retired from the University of Leipzig in 1871. He continued to work with his brother, Eduard and their work with nerve stimulation and muscle suppression lead to inhibitory responses as a popular therapy of the time. Ernst Weber died in 1878 in Leipzig, Germany. Publications Weber's work on the tactile senses was published in Latin as De Subtilitate Tactus (1834), and in German as Der Tastsinn und das Gemeingefühl in 1846. Both works were translated into English by Ross and Murray as E.H.Weber: The Sense of Touch (Academic Press, 1978) and reprinted as E.H.Weber on the Tactile Senses (Erlbaum, Taylor & Francis, 1996). Weber proposed there was a threshold of sensation in each individual. The two-point threshold, the smallest distance between two points where a person determines that it is two points and not one, was Weber’s first discovery. Weber’s work made a significant impact on the field of experimental psychology, as he was one of the first scientist to test his ideas