Science
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Isaac Newton
I do not know what I may appear to the world , but to myself I seem to have been only like a boy playing on the sea -shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me . Sir Isaac Newton ( January 4 , 1643 – March 31 1727 or in Old Style : December 25 , 1642 – March 20 , 1727) was an English physicist , mathematician , astronomer , alchemist , inventor , theologian and natural philosopher . He is often regarded as the most influential scientist in history and is most famous for discovering the Laws of Gravity . [ edit ] Quotes
Kinematics
Kinematics is the branch of classical mechanics that describes the motion of points, bodies (objects) and systems of bodies (groups of objects) without consideration of the causes of motion. [ 1 ] [ 2 ] [ 3 ] The term is the English version of A.M.
Stresses in a contact area loaded simultaneously with a normal and a tangential force. Stresses were made visible using photoelasticity . Contact mechanics is the study of the deformation of solids that touch each other at one or more points. [ 1 ] [ 2 ] The physical and mathematical formulation of the subject is built upon the mechanics of materials and continuum mechanics and focuses on computations involving elastic , viscoelastic , and plastic bodies in static or dynamic contact. Central aspects in contact mechanics are the pressures and adhesion acting perpendicular to the contacting bodies' surfaces, the normal direction , and the frictional stresses acting tangentially between the surfaces.
Contact mechanics
Heinrich Hertz
Heinrich Rudolf Hertz (22 February 1857 – 1 January 1894) was a German physicist who clarified and expanded James Clerk Maxwell 's electromagnetic theory of light , which was first demonstrated by David Edward Hughes using non- rigorous trial and error procedures .
Adhesion
Adhesion is the tendency of dissimilar particles or surfaces to cling to one another ( cohesion refers to the tendency of similar or identical particles/surfaces to cling to one another).