Open Source Physics vs SimEvents

Open Source Physics is a free, open-source resource for physics learning and teaching. It offers a lesson library and authoring tools, with 3D visuals, offline access, and data export. The combination supports both browsing learning materials and creating them. Its listed platforms are web, Windows, macOS, Linux, iOS, and Android, and its delivery mode is hybrid. Offline access is specifically listed, alongside the web and desktop and mobile platforms. The project is listed as founded in 2002, as is its maker, Open Source Physics. The pricing model is free, and the pricing note identifies the resource as open source. Data export is included among its capabilities. Readers can weigh the library and authoring tools against its broad range of platform options when considering it for physics education.

SimEvents is desktop software for modeling message-based communication and other event-driven processes. It uses a discrete-event simulation engine and component library, and can combine event-based models with Simulink time-based models for large hybrid systems. Blocks represent entity creation and destruction, queues, service times, routing, attributes, and event responses. Resource Pool, Resource Acquirer, and Resource Releaser blocks model resource allocation, while repeated simulations can support optimization. Analysis includes latency, throughput, packet loss, queue lengths, delays, and average service times. Users can simulate and debug models, inspect queue contents, visualize entity activity, and build custom visualization tools. Output statistics aggregate measures, and Sequence Viewer displays messages, events, and entities. MATLAB Discrete Event System and Discrete Event Chart blocks allow custom behavior. Listed applications include communication networks, software and hardware architectures, forecasting, capacity planning, and supply chain management. SimEvents requires MATLAB and Simulink, runs on Windows, Mac, and Linux, and has a 30-day trial with paid licensing.