click space bar for effects and turn up sound open your wallet

9
Pennies Copper in your pocket Click space bar for effects and turn up sound

Post on 19-Dec-2015

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  • Slide 1
  • Slide 2
  • Click space bar for effects and turn up sound
  • Slide 3
  • Open your wallet
  • Slide 4
  • Big bucks in Winnipeg
  • Slide 5
  • Stampeding coins Pennies begin their life as a roll of core steel fed into a punch press that churns out blank coins After plating, the blanks are dried, polished and inspected before proceeding to the coining press where they are stamped Blanks are next electro- plated with mixture of nickel and copper These blanks are refined by removing rough edges
  • Slide 6
  • (plus a few)
  • Slide 7
  • Copper in currency : it goes back a few years
  • Slide 8
  • Its elementary, my dear
  • Slide 9
  • And where in the world do we find copper? ( map of world wide copper production 2005)
  • Slide 10
  • Bibliography