spontaneously from non-living matter. As a consequence of limited technology‚ many people believed this theory as technological inventions like the light compound microscope‚ which showed life‚ were non-existent at the time. Evidently‚ in 1665‚ Robert Hooke‚ an English scientist‚ invented his own compound microscope and observed the cellular nature of the cork. The topic of cells was brought forth and from this moment‚ in 1674 Leeuwenhoek viewed microscope ’ animalcules’ and in 1838‚ Schleiden and
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basic piece of technology. The microscope played the key role in discovering cells‚ and as it advanced with technology‚ so too did the cell theory. In 1665‚ scientist Robert Hooke used a microscope to look at slices of cork. He noticed that the cork was divided up into hundreds of tiny little compartments that he named cells. Hooke was the first person to acknowledge cells‚ and this was when the cell theory began. In 1758 a spectacle manufacturer John Dollard‚ patented an almost completely achromatic
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Isaac Newton may have been the greatest and most influential scientist and mathematician in history‚ but he would not appreciate that title. For Newton didn’t invent calculus and create the basis for modern physics under pressure and for a purpose‚ he was‚ as he said “only like a boy playing on the sea shore” (Gleick 4). Newton‚ for most of his life‚ was quiet and kept his work to himself. He suffered a rather formalistic childhood without a father; his mother married a rich man who wanted a wife
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idea of spontaneous generation‚ a theory held for nearly two millennia‚ proposed that organisms originated from inorganic matter. The lack of technology impeded on the development of cell theory‚ until the creation of the microscope. In 1663‚ Robert Hooke‚ proposed that organic matter was composed of what he called‚ cells. He was able to view these cells as he used a simple microscope‚ which allowed him to see what organisms were composed of. The advent of the simple microscope however was not enough
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Lab 5.3 SPRINGS- HOOKES LAW Group member: Submitted by: Submitted to: Class: Due: Lab 5.3 SPRINGS- HOOKES LAW Purpose: To study the characteristics of a spring. Hypothesis: With an increase in weight there will be a directly relatable increase in spring length. Additionally each spring will increase to different expected lengths. Materials: -Light spring -Dense spring -Brass spring -Masses -Ruler
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things previously unknown to man. When sections of living things were magnified under the microscope‚ tiny structures could be seen for the first-time and in structures that the human eye was never able to see. For example‚ in 1664‚ a scientist named Robert Hook looked at pieces of cork under his microscope. He
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took this from a website; http://www.efunda.com/formulae/solid_mechanics/mat_mechanics/hooke.cfm "Robert Hooke‚ who in 1676 stated‚ The power (Sic.) of any springy body is in the same proportion with the extension. He announced the birth of elasticity. Hooke’s statement expressed mathematically is‚ [IMAGE] where F is the applied force (and not the power‚ as Hooke mistakenly suggested)‚ u is the deformation of the elastic body subjected to the force F‚ and k is the
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INVESTIGATION OF HOOKE’S LAW – AIM: To investigate Hooke’s law by estimating the spring constant of a spring. INTRODUCTION: Hooke’s law is a law in physics named after Robert Hooke‚ a British physicist who lived in the 17th century and is said to have been the first to pose the idea of this law.(wikipedia‚2010) Hooke’s law states that the Force with which a spring pushes back is linearly proportional to the distance from its equilibrium (wikepedia‚2010) ‚ this can be simplified by saying that
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Title Experiment with a spiral spring (Oscillation) Objective 1. To show how the time of vertical oscillation depends on the load 2. To determine the spring constant 3. To determine the effective mass of the spring Introduction In this experiment‚ it is to show how the time of vertical oscillation depends on the load‚ to determine the spring constant and to determine the effective mass of the spring. An ideal spring is remarkable in the sense that
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Taha Al-Yousif Hooke’s Law Lab Date conducted: September 18th 2013 Partners: Mohammed‚ Liam‚ Ben Nguyen Purpose: The purpose of this experiment is to find the relationship between the stretch of the spring and the attached mass and to verify that this relationship is accurately described by Hook’s Law. Theory: Hooke’s Law states that to extend a spring by an amount (Stretch) from its previous position‚ one needs to add an external force (Mass). Therefore
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