"This drink may be the world’s first tastable example of the relationship between the Fibonacci sequence and the golden ratio!" http://goo.gl/QkeuNk by
Each layer of this lemonade is composed of varying ratios of sugar and lemon juice. "The top layer of our drink is 1 part lemon, while the second layer is 1 part sugar syrup. Following the Fibonacci rule, each subsequent layer has proportions that are the sum of the previous two layers proportions."
"Generically, for layer n > 2, there are fib(n-1) parts sugar and fib(n-2) parts lemon juice. These are adjacent Fibonacci numbers, so as the drink is consumed the ratio of lemon to sugar approximates the Golden Ratio."
The food coloring is optional, but here's the breakdown of the drink's 7 layers:
Layer 1: 1 tsp. lemon juice
Layer 2: 1 tsp. simple syrup
Layer 3: 1 tsp. lemon juice, 1 tsp. simple syrup
Layer 4: 1 tsp. lemon juice, 2 tsp. simple syrup
Layer 5: 2 tsp. lemon juice, 3 tsp. simple syrup
Layer 6: 3 tsp. lemon juice, 5 tsp. simple syrup
Layer 7: 5 tsp. lemon juice, 8 tsp. simple syrup
Read the whole recipe here: http://goo.gl/QkeuNk