There is disclosed an apparatus for magnifying and capturing images of one or more samples, as well as an apparatus for changing objective lenses. Some embodiments of the invention provide a method that allows the master reference data set to be accessed and updated in the data storage through the use of the enterprise specified identifiers. The carbon layer protects the metallic particles from oxidation, which greatly facilitates the handling and further processing of the particles. The tilt axis divides the surface area of the wind turbine into upper and lower portions of unequal size, such that incoming wind on the front face of the wind turbine applies unequal force to the upper and lower portions of the surface area of the wind turbine to induce pitch of the wind turbine about the tilt axis. The liquid-activated battery may generate a voltage to power an electronic device due to the ionic communication. Embodiments of the wide angle lens satisfy conditional equations of 6\u2266BFLf\u22667.