An apparatus for supporting a storage container upon removal from a storage compartment. The body can be formed of a porous material compatible with at least one of an ionic liquid or room-temperature molten salt. Each zoom imaging optical system ZI comprises, in order from its object side, a positive first group G1, a negative second group G2, an aperture stop AS, a positive third group G3 and a positive fourth group G4. ; and a low molecular weight polymeric nylon plasticizer; wherein: the at least one elastomer is present as a dispersed phase of small vulcanized particles in a continuous nylon phase; and the elastomer particles are formed by dynamic vulcanization. If the user is required to authenticate his identity, the system requests input from the user, compares the input to the security feature, and determines if the user is authenticated. The method including: absorbing energy during one or more periods of a periodic motion of the joint in which energy is absorbed by the muscles; and at least partially returning the absorbed energy to one of an energy storage device or power consuming device.