Sankey diagrams are drawn to scale - the thicker the line or arrow, the greater the amount of energy involved. You may be required to draw a Sankey diagram to scale in an exam.

Diagrams can be used to show how energy is transferred from one store to another. Two examples are the transfer diagram and the Sankey diagram. In transfer diagrams the boxes show the energy ...

Go with the flow Glen Newton, a software developer, has created a splendid "Sankey diagram" that visualises Canada's energy production and use.

This style of diagram makes it easy to see the dominant flows within a system and highlights where losses occur. The Sankey diagram is named after an Irish engineer, Matthew Sankey, who published ...