Sankey diagrams show that the total energy transferred into a system is equal to the useful energy transferred plus the energy dissipated or 'wasted'. This confirms that energy is conserved.

For example, a grazing cow, a firing catapult and a boiling kettle are all doing 'work', as energy is being transferred. Diagrams can be used to show how energy is transferred from one store to ...

Eddies are large, rotating currents that contribute to ocean mixing and transport of heat and salt in seawater. Importantly, ...