Quantised Inertia combines these two predictions by saying that the horizon damps the Unruh waves on one side of the object—rather as sea defences damp ocean waves. The resulting gradient in the quantum vacuum pushes the object back against it acceleration, explaining inertia.<ref> {{cite journal|last=McCulloch |first=M.E. |year=2007|title=Modelling the Pioneer anomaly as modified inertia |journal=Monthly Notices of the Royal Astronomical Society |volume=376 |pages=338-342|doi=10.1111/j.1365-2966.2007.11433.x }}</ref><ref> {{cite journal|last=McCulloch |first=M.E. |year=2013|title=Inertia from an asymmetric Casimir effect |journal=EPL |volume=101 |pages=59001|doi=10.1209/0295-5075/101/59001 }}</ref> | Quantised Inertia combines these two predictions by saying that the horizon damps the Unruh waves on one side of the object—rather as sea defences damp ocean waves. The resulting gradient in the quantum vacuum pushes the object back against it acceleration, explaining inertia.<ref> {{cite journal|last=McCulloch |first=M.E. |year=2007|title=Modelling the Pioneer anomaly as modified inertia |journal=Monthly Notices of the Royal Astronomical Society |volume=376 |pages=338-342|doi=10.1111/j.1365-2966.2007.11433.x }}</ref><ref> {{cite journal|last=McCulloch |first=M.E. |year=2013|title=Inertia from an asymmetric Casimir effect |journal=EPL |volume=101 |pages=59001|doi=10.1209/0295-5075/101/59001 }}</ref> |