This example demonstrates D3 scale functions for mapping data values to visual ranges. It shows linear scales converting continuous domains to numeric and color outputs, ordinal scales for one-to-one mapping, and band scales for positioning categorical data with optional padding and rounded pixel ranges. The code uses `d3.scaleLinear`, `d3.scaleOrdinal`, `d3.scaleBand`, and `d3.interpolate` with data from `nobel-winners.json` containing country-level Nobel Prize counts. Console output illustrates scale outputs for specific inputs, including color interpolation and bandwidth calculations.