Making Body Mass more fun

Everybody knows how to calculate a body mass index (BMI) nowadays, you take your length in meters and multiply that by your weight in kilograms. Then you have to compare the number to a table to see if you are to heavy or not. A simple but quite boring exercise.
The Dutch Centre for Food Education made the calculation a bit more entertaining by putting it on an interactive scale. By changing the two sliders you instantaneously see what happens when you gain or lose weight and how that reflects on your health.

By using the Dynamic Queries pattern the user gets instant feedback on what he does and by showing the results in a clear graphic the meaning of the data is understood immediately.

Pattern: Dynamic Queries