A waste extraction system for an aquaculture tank includes a first conduit having a first end and a distant second end, with a second conduit disposed within the conduit. A film is affixed to the surface of a long plate-shaped elastic body which is disposed between two to-be-connected objects. A cable connection is provided for producing a restoring force for the second carrier arm, and couples the second carrier arm to a counterweight for producing a restoring force around the second pivot axis. The present invention can be applied to, for example, cases of removing movement blurring from an image, for example. The second heat sink thermally connects with the first heat sink via heat pipes. In another embodiment, the plate also comprises apertures to enable the plate to be adapted as an electrical outlet cover.