Introducing 

Prezi AI.

Your new presentation assistant.

Refine, enhance, and tailor your content, source relevant images, and edit visuals quicker than ever before.

Loading…
Transcript

Euporium in Counterfeiting

Fool's Gold

-Electrons emit light based on energy levels.

-They get excited, crash, then emit a certain color of light.

-The European Union laced a fluorescent dye with europium ions on its paper bills.

-The dye has an antenna that captures incoming light energy, which excites the electrons.

-Euporium appears dull under visible light.

-If you slide a euro note beneath the laser, small fibers will glow a green color.

(see pages 230 and 232 for more information)

  • The Gold Rush universally began in 1848
  • Gold hungry miners in Australia were tricked by fool's fool's gold in 1896.
  • Tellurium is the only element that binds to gold, and formed calaverite, which resembles iron pyrite in shine and color.
  • Pyrite was popular in Roman times as a source for sparks when struck with steel. Later in 1500 - 1600 AD this ability was used as a source for ignition in most firearms. It was also used as an early source for oil of vitriol (sulfuric acid).

Aluminum

  • Aluminum is much less valuable than gold today, but, in the past, it wasn't. In fact, the man who first efficiently isolated aluminum made a profit equivalent to 650 million dollars from the time he was only 23 years old to when he died. (Web)
  • Price Difference
  • 1884
  • $16 per pound
  • Annual minimum wage in 1890: $.20
  • Now
  • $.78 per pound
  • Indiana's minimum wage: $7.25 an hour

Elements in Money

By: Cameron Brice

Alex Alburo

Astrid Trapp

Nathan Hall

Coins

  • The world's first coins appeared around 600 B.C. in modern-day Turkey
  • Made of electrum, an alloy of gold and silver
  • Eventually, gold and silver replaced electrum, as the coin values reflected the actual values of the metals
  • Nickels, dimes, and quarters are pickled before they are minted (soaked in a special chemical solution that washes and polishes them)

Coinage in the United States

  • The first coinage act was passed April 2, 1792
  • The first coins were minted using either gold, silver or copper

Works Cited

Penny

Quarter

  • Very first coins minted in the United States
  • Amount of copper and zinc in the penny has changed significantly through the years
  • Pure copper from 1793 to 1837
  • Composition is now 2.5% copper and 97.5% zinc
  • Originally made of pure silver in 1796
  • Now made of 8% nickel and 92% copper
  • In 1965, the old 90% silver alloy was replaced by a "sandwich" alloy of copper-nickel layers around a pure copper core

Dime

Nickel

  • From 1942 to 1945 five-cent coins contained no nickel
  • Therefore, they weren't considered nickels
  • Orignally made of copper, silver, and magnesium in 1866
  • Nickel is now made of 25% nickel and 75% copper
  • The Roosevelt dime was designed by John R. Sinnock
  • Originally made of 89% silver and 11% copper in 1792
  • Dime is now made of 8% nickel and 92% copper
  • Word dime comes from the old French "disme", meaning 1/10
  • http://www.livescience.com/2058-profound-history-coins.html
  • http://www.investopedia.com/articles/economics/10/history-of-us-coinage.asp
  • Disappearing Spoon- Sam Kean
  • http://www.usmint.gov/kids/coinNews/funFacts.cfm
  • http://www.funtrivia.com/en/subtopics/Once-Upon-A-Dime-353684.html
  • http://www.tms.org/pubs/journals/jom/9511/binczewski-9511.html
  • http://www.nps.gov/klse/learn/nature/what-fools-gold.htm

*0:20-1:16

Learn more about creating dynamic, engaging presentations with Prezi