Abstract: Disclosed herein is an energy-absorbing device comprising a first layer; a second layer; the second layer being opposedly disposed to the first layer and in slideablecommunication with the first layer; the first layer and the second layer enclosing a space therebetween; the space being filled with a fluid that has a power law exponent ? of at least about 1.3 when measured in half cell split Hopkinson bar using Equation (3) below: ? ? w ? ma ? ? x = ? ? [ U h ] n = ? ? ? . n ( 3 ) where |?w|max is a maximum shear stress, ? is a shear strain rate, U is a characteristic velocity of the striker wall, h is a thickness of the space, n is a power law dimensional factor that represents an energy dissipating property of the fluid.