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Abstract-Laboratory experiments provide hands on experience to students, thereby enhancing their understanding of the given topic. Often, due to lack of resources, interactive simulations of laboratory experiments are an attractive substitute. Simulations could be two dimensional (2D) or they could be three dimensional (3D). 3D has added advantages of multiple viewing angles, more realistic views with textures and lights, and cross-section walk-through.The process of creating a 3D simulation for a lab experiment is time consuming. Typically, it has 3 stages: Modeling, Animation and Adding Interactivity. We believe that a significant amount of time, money and effort could be saved if a repository of 3D models created using some Open Source software (such as Blender) is available. This will allow animators and programmers to concentrate on the further stages.In this paper we have identified the key design goals and presented a methodology to create a repository of 3D models. We have used this methodology to create more than 40 models in Blender, in about 4 months. These models can be downloaded and directly used by anyone. Moreover others can use this methodology to create their own model repository.

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Context: Internet addiction is known to harmfully affect psychological health. However, few researches have examined its plausible related factors and respite from its effects. Aim: This study aims to examine the relationship between internet addiction, aggression, psychological well-being, and the mediating effects of self-compassion and online/offline integration, on them. Materials and Methods: Data from 459 university students aged between 18 and 21 years were purposively selected from various disciplines and locations in India. Data were collected using an online demographic survey and standardized psychological measures. Statistical Analysis: Data analysis was performed using Partial Least Squares (PLS) path analysis. Direct and indirect effects and path coefficients were observed using PLS structural equation modeling. Results: The study indicated a possible influence of internet addiction on psychological well-being and aggression. It seems to increase aggression levels and lower psychological wellbeing. Online/offline integration and self-compassion partially mediated and dampened its adverse effects. Conclusions: Online/offline integration and self-compassion have a possibility to therapeutically diminish the ill-effects of internet addiction, lower aggression levels and promote psychological health of students who use internet extensively. This study provides a basis for further research to establish causal inferences.