CHAPTER TWO: Number Contemplation

Summary:

Chapter two covers counting, numerical patterns in nature, prime numbers, secret codes, and other number-related topics.

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Interesting Links:

• Examples of the pigeonhole principle
  
• Fibonacci numbers in nature
  
• Basics on prime numbers
  
• Understanding bar codes
  
• Clocks and modular arithmetic
  (careful if you're using an older version of netscape on a mac)
  
• Some basics on cryptography
  
• Real numbers