Using Fibonacci Numbers to Convert from Miles to Kilometers and Vice Versa - good coders code, great reuse

Using Fibonacci Numbers to Convert from Miles to Kilometers and Vice Versa - good coders code, great reuse:
"I learned an interesting fact about Fibonacci numbers recently while watching a lecture on number theory. Fibonacci numbers can be used to approximately convert from miles to kilometers and back."

@sd Wow! Fibonacci numbers can be used to convert between Miles and Km http://bit.ly/5s7UtU /via @KirinDave