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Title:

Archimedes

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... King suspected that the goldsmith, Aurus Anvil, pilfered some of the gold and ... Aurus Anvil was executed. Archimedes' Principle ... – PowerPoint PPT presentation

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Title: Archimedes


1
Archimedes
The Gold Crown              
                        
2
Archimedes
  • King
  • Is my crown pure gold?
  • If its the same material
  • Equal mass should have
  • the Equal volume

3
The Story of Archimedes
  • In 247 BC Archimedes (Greek mathematician) was
    ordered by King Hieron to determine if his new
    crown was pure gold.
  • The King suspected that the goldsmith, Aurus
    Anvil, pilfered some of the gold and replaced it
    with silver when he made the new crown.
  • Archimedes was told not to damage the crown
    during this process in case it was pure gold.
  • Archimedes figured out how to non-destructively
    test the crown while bathing. He ran in the
    street naked shouting Eureka (which means in
    Greek I figured it out).
  • Archimedes proved that the crown was not pure
    gold by taking a mass of pure gold equal to that
    of the crown, placing them separately in water
    and measuring the weight of water displaced.
  • The water displaced by each should be identical
    if the crown was pure gold.
  • The water displaced was not identical.
  • Aurus Anvil was executed.

4
Archimedes Principle
  • Mass of a floating object is equal to the mass of
    the water it displaces.

5
Volume Displacement
6
Volume Displacement Can
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