This issue of the CAS magazine presents papers that could not be accommodated in the 1st part of the Alfred Fettweis memorial special issue that appeared as the December 2018 issue. While the 1st part provided extensive views of Alfred Fettweis' personal life, scientific contributions, and several papers dealing with areas that were influenced by his scientific and technological contributions at large, many other topics could not be included due to multiple reasons which included primarily lack of space, and also the vast expanse of diverse topics that Fettweis had worked on during his long career - both before and after his formal retirement from the scientific/technical enterprise.