This example visualizes temperature readings over time from the Data Canvas Sense Your City dataset as a smooth line chart. Built with React and D3 v5, it uses `scaleTime` and `scaleLinear` to map data to SVG coordinates, `line()` with `curveNatural` for the path, and custom axis components. The graph displays time on the x-axis and temperature on the y-axis, with tick marks formatted using `timeFormat`.