Post on 07-Apr-2018
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Deals with the state of rest or motion of
bodies
Historical Contributions: Archimedes ( 287 212 BC)
Galileo ( 1564 1642)
Newton ( 1642 1727)
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Einstein ( 1878 1955)
Schrodinger De- Broglie ( 1887 1965)
Students of AEC Bhongir ( 2011 2086)
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Greatest mathematician of all time
Accomplished physicist
Engineer
Astronomer
Philosopher
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Created field of hydrostatics
Founded fundamentals of mechanics
Discovered law of levers
Calculated centres of gravity for flat surfaces
and solids.
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2nd Punic War invented war machines todefend the city from the Roman siege (214-212 B.C.)
Machines included catapults, ropes, pulleys,and hook
Suggested the use of large mirrors to focusthe rays of the sun onto the Roman ships,thereby setting them on fire.
http://hassam.hubpages.com/hub/Some-Facts-About-The-Roman-Empirehttp://hassam.hubpages.com/hub/Some-Facts-About-The-Roman-Empire8/3/2019 Engg Mechanics -Intro
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Given:ABandBCmake up a broken chord withBC>AB.Mis the midpoint of arcABCMFis perpendicular toBCArchimedes proved thatFis the midpoint of the broken chordABC.
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When the screw is turned, the water slides up thetube until it falls out of the top.
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If a polygon is inscribed within a circle, itsperimeter must be less than the circlescircumference.
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Similarly, if another polygon is circumscribedoutside a circle, its perimeter must be greater thanthe circles circumference.
Measuring both polygons perimeters and dividing
by the circles diameter gives a bound for thevalue of
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By using polygons with increasing numbers ofsides, the bound can be made more accurate.
Starting with a hexagon, Archimedes keptadding sides until he had polygons of 96sides which gave him a range of 310/71