“…Several studies have shown that skills gained in virtual simulations may be successfully transferred to real life situations [42,53] and retained over a longer period of time [10]. Accordingly, virtual reality has been applied to training and learning in a broad spectrum of domains including industrial processes and security [38,40], aviation safety [10], cultural heritage [3,4], military training [54,69], Internet of Things [77] surgery [1,59,65,71], geography [39], safety procedures [10], and social interactions [36,37,64,72,73]. Virtual reality has also been widely applied to education and a thorough survey of the research in such broad area is outside the scope of this paper.…”