A counterweight based rocket launch platform system and method uses gravity acting upon a counterweight to provide the initial assent for a rocket. A polymeric passivating reagent, which selects for anisotropic growth is also used in the reaction to facilitate nanowire formation. In another embodiment, hot gas, in the form of hot air, is produced separate from the steam and is joined with it to form a mixture for distribution to treat the crop. The leg members are particularly constructed to permit surveying tools or other objects to be permanently or replaceably mounted on the legs. The device allows the testing of thermometers by measuring the triple point or melting point of the substance. The plain bearing is provided between the housing and an outer ring of the rolling bearing, and formed from a resin material.