Intermediary Structural Analysis Force Victor E. Saouma
[email protected] University of Colorado, Boulder Fall 2017 Victor E. Saouma; CVEN 4525/5525; Univ. of Colorado Introduction 1/12 Table of ContentsI 1 What is Force Aristotelian Medieval Newtonian Victor E. Saouma; CVEN 4525/5525; Univ. of Colorado Introduction 2/12 What is Force What is Force? Force is in general defined as the cause of acceleration. Since acceleration is observable, its cause must be something real. Thus, force is real. However, some physicists and philosophers of science have, pointed out that force does not exist in reality. Broadly speaking, we can distinguish two movements: Aristotelian (pre 17th century) Newtonian (17th century onward) may possibly add one “Einstenian”. Excellent reference Concept of Force by M. Jammer. Victor E. Saouma; CVEN 4525/5525; Univ. of Colorado Introduction 3/12 What is Force Aristotelian AristotelianI Aristotle (384 BC-322 BC), pupil of Plato, tutor of Alexander the Great, writings cover physics, biology, zoology, metaphysics, logic, ethics, aesthetics, poetry, theater, music, rhetoric, linguistics, politics and government and constitute the first comprehensive system of Western philosophy. Rather than assigning a “divine” explanation of nature, through observation he sought to discover the principles and causes of (and not merely to describe) and then developed systematic set of ideas by categorizing things: most famously believed that earth was made up of four main elements: earth, air, water, and fire. Likewise, he classified motion as either Natural associated with celestial motion (circular), or terrestial (rectilinear). Violent: Force responsible for motion had to be in constant physical contact with the moved body.