{"id":1231,"date":"2024-02-25T15:22:35","date_gmt":"2024-02-25T09:52:35","guid":{"rendered":"https:\/\/www.techandtrain.com\/blog\/?p=1231"},"modified":"2025-10-22T14:51:32","modified_gmt":"2025-10-22T09:21:32","slug":"lets-study-core-engineering-non-techwith-gemini-part-1-design-philosophies-for-civil-mechanical-and-electrical-engineering-created-by-gemini","status":"publish","type":"post","link":"https:\/\/www.techandtrain.com\/blog\/2024\/02\/lets-study-core-engineering-non-techwith-gemini-part-1-design-philosophies-for-civil-mechanical-and-electrical-engineering-created-by-gemini\/","title":{"rendered":"Let&#8217;s study core engineering (non-Tech)with Gemini &#8211; Part 1 &#8211; Design philosophies for civil, mechanical and electrical engineering &#8211; Created by Gemini"},"content":{"rendered":"\n<p id=\"ember2746\">Here&#8217;s a breakdown of major design philosophies across the three core disciplines of civil, mechanical, and electrical engineering:<\/p>\n\n\n\n<p id=\"ember2747\"><strong>Civil Engineering<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Working Stress Method (WSM):<\/strong> A classic approach focusing on keeping stresses in materials well within their elastic limits. It applies factors of safety for additional protection against unforeseen loads.<\/li>\n\n\n\n<li><strong>Limit State Method (LSM):<\/strong> A more comprehensive philosophy that considers various limit states a structure might reach (collapse, excessive deflection, cracking, etc.). Both loads and material strengths have safety factors applied. LSM is preferred in modern codes and standards.<\/li>\n\n\n\n<li><strong>Ultimate Load Method\/ Load Factor Method:<\/strong> Focuses on the theoretical collapse load of a structure to determine safety margins. Employs load factors to increase anticipated loads and reduce allowable material strength.<\/li>\n<\/ul>\n\n\n\n<p id=\"ember2749\"><strong>Mechanical Engineering<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Factor of Safety:<\/strong> A core concept where the failure load or stress is divided by the expected working load\/stress. This provides a safety margin, with factor values often mandated by standards.<\/li>\n\n\n\n<li><strong>Reliability-Based Design:<\/strong> Incorporates statistical models into design to account for variability in loads, material properties, manufacturing, etc. This offers a more probabilistic view of failure risk and helps optimize designs.<\/li>\n\n\n\n<li><strong>Design for X (DFX):<\/strong> A family of philosophies with these notable ones: <strong>Design for Manufacturing and Assembly (DFMA):<\/strong> Emphasizes designing for ease of manufacturing and assembly, reducing costs and production time. <strong>Design for Sustainability<\/strong> Prioritizes minimizing environmental impact through material choices, energy efficiency, and end-of-life considerations.<\/li>\n<\/ul>\n\n\n\n<p id=\"ember2751\"><strong>Electrical Engineering<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Codes and Standards:<\/strong> Electrical engineers heavily rely on national and international codes (e.g., National Electrical Code (NEC), IEC Standards). These codes prescribe safety practices, component ratings, wiring methods, etc.<\/li>\n\n\n\n<li><strong>Reliability and Redundancy:<\/strong> Especially important in power systems and critical infrastructure. Redundancies and fail-safes are built-in to maximize reliability and mitigate failure risks.<\/li>\n\n\n\n<li><strong>Circuit Design Methodologies:<\/strong> <strong>Worst-case Design:<\/strong> Considers the most extreme parameter variations components might have and designs for the worst possible scenario. <strong>Statistical Design:<\/strong> Leverages statistical models of component tolerances to assess the probability of circuit performance falling within acceptable ranges.<\/li>\n\n\n\n<li><strong>Signal Integrity:<\/strong> In high-speed digital design, minimizing signal distortion, noise, and interference is crucial, impacting design philosophies, transmission line choices, and grounding approaches.<\/li>\n<\/ul>\n\n\n\n<p id=\"ember2753\"><strong>Important Considerations<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Overlaps and Shared Principles:<\/strong> Lines blur between the disciplines. Factors of safety are used across branches, and sustainability is a growing concern for all engineers.<\/li>\n\n\n\n<li><strong>Project-Specific Needs:<\/strong> The project&#8217;s context and requirements dictate the most suitable philosophy. A simple component might only need the Factor of Safety approach, while a critical nuclear power plant would employ multiple methods with rigorous safety and simulation.<\/li>\n\n\n\n<li><strong>Design as a Process:<\/strong> Engineering design is an iterative process. Philosophies guide choices but are integrated with analysis tools, codes\/standards, and continuous evaluation.<\/li>\n<\/ul>\n\n\n\n<p id=\"ember2755\">Let me know if you&#8217;d like a deeper dive into a particular philosophy or its practical application within one of these engineering fields!<\/p>\n\n\n\n<p id=\"ember2756\"><strong>References:<\/strong><\/p>\n\n\n\n<p id=\"ember2757\"><strong>Civil Engineering<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Working Stress Method:<\/strong>Wikipedia: Working Stress Design: <a href=\"https:\/\/en.wikipedia.org\/wiki\/Working_stress_design\">https:\/\/en.wikipedia.org\/wiki\/Working_stress_design<\/a><\/li>\n\n\n\n<li><strong>Limit State Method:<\/strong>Wikipedia: Limit State Design: <a href=\"https:\/\/en.wikipedia.org\/wiki\/Limit_state_designNote\">https:\/\/en.wikipedia.org\/wiki\/Limit_state_design<\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Limit_state_designNote\"><strong>Note<\/strong><\/a><strong>:<\/strong> The article has a section specifically dedicated to its application in structural engineering.<\/li>\n\n\n\n<li><strong>Ultimate Load Method\/Load Factor Method:<\/strong>Wikipedia: This method has a less dedicated article, but good information can be found within the broader &#8220;Limit State Design&#8221; article.<\/li>\n<\/ul>\n\n\n\n<p id=\"ember2759\"><strong>Mechanical Engineering<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Factor of Safety:<\/strong>Wikipedia: Factor of Safety: <a href=\"https:\/\/en.wikipedia.org\/wiki\/Factor_of_safety\">https:\/\/en.wikipedia.org\/wiki\/Factor_of_safety<\/a><\/li>\n\n\n\n<li><strong>Reliability-Based Design:<\/strong>Wikipedia: Reliability Engineering (look for the section on &#8220;Design for Reliability&#8221;): <a href=\"https:\/\/en.wikipedia.org\/wiki\/Reliability_engineering\">https:\/\/en.wikipedia.org\/wiki\/Reliability_engineering<\/a><\/li>\n\n\n\n<li><strong>Design for X (DFX):<\/strong>Wikipedia: Design for X (general overview): <a href=\"https:\/\/en.wikipedia.org\/wiki\/Design_for_XWikipedia\">https:\/\/en.wikipedia.org\/wiki\/Design_for_XWikipedia<\/a>: Design for Manufacturing and Assembly: <a href=\"https:\/\/en.wikipedia.org\/wiki\/Design_for_assemblySustainability\">https:\/\/en.wikipedia.org\/wiki\/Design_for_assembly<\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Design_for_assemblySustainability\"><strong>Sustainability<\/strong><\/a><strong>:<\/strong> You&#8217;ll likely find more design for sustainability information on engineering society websites or in academic papers<\/li>\n<\/ul>\n\n\n\n<p id=\"ember2761\"><strong>Electrical Engineering<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Codes and Standards:<\/strong>Wikipedia: National Electrical Code: <a href=\"https:\/\/en.wikipedia.org\/wiki\/National_Electrical_CodeWikipedia\">https:\/\/en.wikipedia.org\/wiki\/National_Electrical_CodeWikipedia<\/a>: International Electrotechnical Commission (IEC): <a href=\"https:\/\/en.wikipedia.org\/wiki\/International_Electrotechnical_Commission\">https:\/\/en.wikipedia.org\/wiki\/International_Electrotechnical_Commission<\/a><\/li>\n\n\n\n<li><strong>Reliability and Redundancy:<\/strong> Systems Engineering concepts are heavily intertwined. Look on Wikipedia for:Wikipedia: Reliability Engineering: <a href=\"https:\/\/en.wikipedia.org\/wiki\/Reliability_engineeringWikipedia\">https:\/\/en.wikipedia.org\/wiki\/Reliability_engineeringWikipedia<\/a>: Fault Tolerance: <a href=\"https:\/\/en.wikipedia.org\/wiki\/Fault_tolerance\">https:\/\/en.wikipedia.org\/wiki\/Fault_tolerance<\/a><\/li>\n<\/ul>\n\n\n\n<p id=\"ember2763\"><strong>Core Concepts:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Electronic Circuit:<\/strong> This is your foundational starting point, explaining the basics of components, connections, and the nature of electronic circuits. (<a href=\"https:\/\/en.wikipedia.org\/wiki\/Electronic_circuit\">https:\/\/en.wikipedia.org\/wiki\/Electronic_circuit<\/a>)<\/li>\n\n\n\n<li><strong>Circuit Diagram:<\/strong> Provides information on how circuits are represented schematically with symbols and conventions. (<a href=\"https:\/\/en.wikipedia.org\/wiki\/Circuit_diagram\">https:\/\/en.wikipedia.org\/wiki\/Circuit_diagram<\/a>)<\/li>\n<\/ul>\n\n\n\n<p id=\"ember2765\"><strong>Types of Circuits<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Analog Circuits:<\/strong> Deals with continuous signals and common components. (<a href=\"https:\/\/en.wikipedia.org\/wiki\/Analog_circuit\">https:\/\/en.wikipedia.org\/wiki\/Analog_circuit<\/a>)<\/li>\n\n\n\n<li><strong>Digital Circuits:<\/strong> Focused on discrete signals and the foundation of logic gates and digital systems. (<a href=\"https:\/\/en.wikipedia.org\/wiki\/Digital_circuit\">https:\/\/en.wikipedia.org\/wiki\/Digital_circuit<\/a>)<\/li>\n<\/ul>\n\n\n\n<p id=\"ember2767\"><strong>Design Techniques and Analysis:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Kirchoff&#8217;s Circuit Laws:<\/strong> Fundamental for circuit analysis. (<a href=\"https:\/\/en.wikipedia.org\/wiki\/Kirchhoff%27s_circuit_laws\">https:\/\/en.wikipedia.org\/wiki\/Kirchhoff&#8217;s_circuit_laws<\/a>)<\/li>\n\n\n\n<li><strong>Network analysis (electrical circuits):<\/strong> Offers several analytical methods for solving circuits. ([invalid URL removed]))<\/li>\n<\/ul>\n\n\n\n<p id=\"ember2769\"><strong>Additional Useful Links<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Resistor:<\/strong> (<a href=\"https:\/\/en.wikipedia.org\/wiki\/Resistor\">https:\/\/en.wikipedia.org\/wiki\/Resistor<\/a>)<\/li>\n\n\n\n<li><strong>Capacitor:<\/strong> (<a href=\"https:\/\/en.wikipedia.org\/wiki\/Capacitor\">https:\/\/en.wikipedia.org\/wiki\/Capacitor<\/a>)<\/li>\n\n\n\n<li><strong>Inductor:<\/strong> (<a href=\"https:\/\/en.wikipedia.org\/wiki\/Inductor\">https:\/\/en.wikipedia.org\/wiki\/Inductor<\/a>)<\/li>\n\n\n\n<li><strong>Transistor:<\/strong> (<a href=\"https:\/\/en.wikipedia.org\/wiki\/Transistor\">https:\/\/en.wikipedia.org\/wiki\/Transistor<\/a>)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Email me: <a href=\"mailto:Neil@HarwaniSytems.in\">Neil@HarwaniSytems.in<\/a><\/li>\n\n\n\n<li>Website: <a href=\"http:\/\/www.harwanisystems.in\/\">www.HarwaniSystems.in<\/a><\/li>\n\n\n\n<li>Blog: <a href=\"http:\/\/www.techandtrain.com\/blog\">www.TechAndTrain.com\/blog<\/a><\/li>\n\n\n\n<li>LinkedIn: <a href=\"https:\/\/www.linkedin.com\/in\/neil27\/\">Neil Harwani | LinkedIn<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Here&#8217;s a breakdown of major design philosophies across the three core disciplines of civil, mechanical, and electrical engineering: Civil Engineering [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1232,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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engineering for 21st century in Tier 2\/3 colleges &#038; universities in India","author":"Neil Harwani","date":"January 9, 2022","format":false,"excerpt":"Civil engineering was among the first core engineering disciplines started in the engineering areas. Over time many other disciplines have evolved like computer engineering, instrumentation, bio-technology, mechatronics, electronics, communications, quantum, systems engineering and so on - on top of the other two core disciplines of mechanical & electrical. But even\u2026","rel":"","context":"In &quot;Engineering&quot;","block_context":{"text":"Engineering","link":"https:\/\/www.techandtrain.com\/blog\/category\/engineering\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2022\/01\/Engineering.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2022\/01\/Engineering.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2022\/01\/Engineering.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2022\/01\/Engineering.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2022\/01\/Engineering.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":1234,"url":"https:\/\/www.techandtrain.com\/blog\/2024\/02\/lets-study-core-engineering-non-tech-with-gemini-part-2-notes-on-radar-engineering-created-by-gemini\/","url_meta":{"origin":1231,"position":1},"title":"Let&#8217;s study core engineering (non-Tech) with Gemini- Part 2 &#8211; Notes on radar engineering &#8211; Created by Gemini","author":"Neil Harwani","date":"February 25, 2024","format":false,"excerpt":"Here's a breakdown of the main points of radar engineering: Fundamentals Electromagnetic Transmission and Reflection: Radar operates by sending electromagnetic waves (usually in the radio or microwave frequencies) and interpreting the echoes reflected from objects. Range Determination: Radar measures the time it takes for a signal to travel to a\u2026","rel":"","context":"In &quot;Core Engineering&quot;","block_context":{"text":"Core Engineering","link":"https:\/\/www.techandtrain.com\/blog\/category\/core-engineering\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2024\/02\/Radar.png?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2024\/02\/Radar.png?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2024\/02\/Radar.png?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2024\/02\/Radar.png?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2024\/02\/Radar.png?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":1238,"url":"https:\/\/www.techandtrain.com\/blog\/2024\/02\/lets-study-core-engineering-non-tech-via-gemini-part-3-what-are-the-basic-laws-of-chemistry-created-by-gemini\/","url_meta":{"origin":1231,"position":2},"title":"Let&#8217;s study core engineering (non-Tech) via Gemini &#8211; Part 3 &#8211; What are the basic laws of chemistry? Created by Gemini","author":"Neil Harwani","date":"February 25, 2024","format":false,"excerpt":"While there's a vast array of principles and theories driving organic and inorganic chemistry, here's a breakdown of some fundamental laws and concepts that form the basis for understanding these fields: Basic Laws of Chemistry (Applicable to both Organic and Inorganic) Law of Conservation of Mass: Matter cannot be created\u2026","rel":"","context":"In &quot;Core Engineering&quot;","block_context":{"text":"Core Engineering","link":"https:\/\/www.techandtrain.com\/blog\/category\/core-engineering\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2024\/02\/Chemistry.png?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2024\/02\/Chemistry.png?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2024\/02\/Chemistry.png?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2024\/02\/Chemistry.png?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2024\/02\/Chemistry.png?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":1452,"url":"https:\/\/www.techandtrain.com\/blog\/2025\/06\/common-technical-challenges-in-software-engineering-grouped-by-category-part-1-collated-from-ai\/","url_meta":{"origin":1231,"position":3},"title":"Common technical challenges in software engineering, grouped by category &#8211; Part 1 (Collated from AI)","author":"Neil Harwani","date":"June 1, 2025","format":false,"excerpt":"Here are common technical challenges in software engineering, grouped by category, that developers and architects frequently face: 1. Scalability Horizontal vs vertical scaling Handling increased load (users, data, transactions) Designing for elasticity in cloud-native environments Bottlenecks in monoliths or microservices 2. Performance Optimization Slow I\/O or database queries Memory leaks\u2026","rel":"","context":"In &quot;Architecture&quot;","block_context":{"text":"Architecture","link":"https:\/\/www.techandtrain.com\/blog\/category\/architecture\/"},"img":{"alt_text":"Image credits: www.Pixabay.com","src":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2025\/06\/Architecture.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2025\/06\/Architecture.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2025\/06\/Architecture.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2025\/06\/Architecture.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2025\/06\/Architecture.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":1061,"url":"https:\/\/www.techandtrain.com\/blog\/2023\/05\/some-unique-courses-for-working-professionals-in-india-post-liberalization-reforms-in-education-part-1\/","url_meta":{"origin":1231,"position":4},"title":"Some unique courses for working professionals in India post liberalization \/ reforms in education &#8211; Part 1","author":"Neil Harwani","date":"May 7, 2023","format":false,"excerpt":"Here with I am providing a list of unique courses that I have observed in India post liberalization \/ reforms in education. Most are online \/ work integrated or distance learning - this is Part 1 of the list for working professionals: PGC IISc from TalentSprint -\u00a0Deep Tech Expertise for\u2026","rel":"","context":"In &quot;Education&quot;","block_context":{"text":"Education","link":"https:\/\/www.techandtrain.com\/blog\/category\/education\/"},"img":{"alt_text":"Credits: www.Pixabay.com","src":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2023\/05\/books.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2023\/05\/books.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2023\/05\/books.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2023\/05\/books.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2023\/05\/books.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":1421,"url":"https:\/\/www.techandtrain.com\/blog\/2025\/02\/partyrock-aws-apps-part-1\/","url_meta":{"origin":1231,"position":5},"title":"PartyRock.aws apps &#8211; Part 1","author":"Neil Harwani","date":"February 20, 2025","format":false,"excerpt":"Here is a list of my experimentation with PartyRock@AWS since last 2 days. It seems like an amazing platform. Try out the 11 apps and do provide feedback. 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