Non-durable self-supporting flexible containers. The current amplifier has an input stage electrically coupled to the pair of differential input signal lines and an output stage electrically coupled to the pair of differential output signal lines. The wavelength dispersive element spreads the input beam in at least one dimension as a function of wavelength and generates a dispersed beam. This makes it possible to produce cores formed from layers of core laminate for electromagnetic machines, whose eddy-losses are reduced. The database and analysis system can be utilized for many purposes, but particularly and preferably to support the analysis of patent claims and more specifically claim construction, infringement, written description, invalidity andor patentability, among other matters of intellectual property litigation and analysis. That end of the outer bulb which is remote from the cap is configured in such a way that it avoids the standard radially symmetrical convex shape.