Published in: Origin of Relief of Central Poland and Its Anthropogenic Transformation in Łódź University Geographical Research, edited by. E.Kobojek, T.MarszałHypotheses, concepts, problems and methodology are vital for academic research. First of all, it is necessary to formulate a concept, ideally one which is coherent and based on simple and physically feasible premise. Then comes the time for long and tiresome verification of details and amalgamation of the new theory. Usually researchers first notice those facts which substantiate the new concept, but, in time, they identify more and more exceptions and local irregularities, which is why the concept starts losing its simplicity and the results of further research increasingly indicate a possibility of other solutions. A new concept arises and thus science develops. The appearance of new hypotheses requires scientists to maintain high level of research. Already in 1934, K.R. Popper wrote that whenever we propose a solution to a problem, we ought to try as hard as we can to overthrow our solution, rather than defend it (Popper 2002). The research conducted by Łódź geographers and geomorphologists since 1945 has offered insight into the relief and geological composition of Central Poland. The development of glacial relief and the scale of transformations in periglacial conditions have been documented thoroughly. Long discussions between the proponents of periglacial and glacial concepts have lead to a proper evaluation of the importance of individual processes of relief origin, at least to the level which is accepted today. Nowadays, Łódź geomorphologists continue extensive research of the processes which occurred in the Vistulian in periglacial and glacial environments a theme which is covered in the study herein by D. Dzieduszyńska et al. (2014). New directions of research include the influence of human activity on geomorphological processes and transformation of relief (Twardy et al. 2014)
