Stackable plastic container including side portions having at least one of protrusions and depressions which nest with one of matching protrusions and depressions of a second container, and with the bottom portion including depressions which nest with the pouring spout and handle of a second container. The perforated collapsible spacer is formed from a steel sheet having longitudinal edges that are joined together in a form of a tube having longitudinal perforated sections formed in its central portion. In some embodiments, the tissue apposition member also act as the energy transmission member. 5 to 10 hours to form a zinc oxide nanorod thin film, wherein the zinc oxide nanorod thin film growing solution is a 0. By correctly matching the overhead objects sensed by the radar and video camera, the proximity and relative speed can be ascertained. The master nodes are further capable of returning to any state in a secure transaction in the event of a network failure.