A method for stretching a hollow fibre while making a stretched filtering membrane from a precursor involves wrapping the hollow fibre around a structure and modifying the structure such that at least portions of the hollow fibre are forced to elongated. In one embodiment, a system includes a beam generator configurable to direct an electron beam towards a specimen. The objective is to fill the spaces with chips forming different forms or shapes as well as patterns corresponding to points or score wherein the first player that reached at least twenty-one points and calls \u201cDEAL\u201d wins. Or, a container format \u201cfuzzer\u201d simulates corruption of a media file, which can help test the resilience of playback equipment to errors in the media files. The unit sends video data to the display device and receives touch data from the device.