Ifeoma is a software engineer with a strong foundation in software development and a user-centred approach to building inclusive digital products. Skilled in JavaScript, ReactJS, CSS, Storybook, and APIs, she brings a well-rounded perspective to her engineering work, shaped by cross-functional experience in product discovery, developer education, and digital accessibility.

She has delivered accessible, user-focused web interfaces, internal tools, and scalable design systems across both B2C and B2B environments. Her interest in how users experience digital products led her to attend Product School, where she deepened her expertise in product discovery and user research, equipping her to contribute at every stage of the product and software development lifecycle.

Beyond hands-on engineering and product work, Ifeoma is a recognised community leader and conference speaker, having shared insights at technical events on topics like accessibility, web performance, and developer tooling. Her project delivery experience includes launching global initiatives with partner institutions and overseeing the successful delivery of digital products in cross-functional, multinational teams.

With a passion for teaching, sharing knowledge, and advocating for inclusive design, Ifeoma has worked as a Developer Educator and LinkedIn Learning Instructor, creating educational content that helps teams and individuals build more usable, accessible experiences. From leading cross-functional product initiatives to scaling accessible component libraries and shaping developer education, her work consistently drives impact at the intersection of technology, people, and inclusion, thus earning her the UK Global Talent Award in Technology.

Ifeoma is a software engineer with a strong foundation in software development and a user-centred approach to building inclusive digital products. Skilled in JavaScript, ReactJS, CSS, Storybook, and APIs, she brings a well-rounded perspective to her ... Show more

Fatuma Abdullahi is a software developer with a front-end focus and an a11y advocate. She comes to tech from a business background and runs a YouTube channel and blog dedicated to learning in public.

Fatuma Abdullahi is a software developer with a front-end focus and an a11y advocate. She comes to tech from a business background and runs a YouTube channel and blog dedicated to learning in public. Show more

Sr Cloud Architect | AWS Community Builder | AWS New Voices Speaker

Sr Cloud Architect | AWS Community Builder | AWS New Voices Speaker Show more

Arquitecto Funcional en MS Dynamics NAV y BUSINESS CENTRAL, Consultor de Proyectos con experiencia liderando equipos y proyectos en todas las fases de implementación, certificado como Scrum Master y Cloud Computing, experiencia en finanzas empresariales.

Arquitecto Funcional en MS Dynamics NAV y BUSINESS CENTRAL, Consultor de Proyectos con experiencia liderando equipos y proyectos en todas las fases de implementación, certificado como Scrum Master y Cloud Computing, experiencia en finanzas empresaria... Show more

Chris has worked with Microsoft Teams since 2017 and has architected and overseen deployments of Teams in Healthcare, Education, Financial, and Manufacturing for the majority of his Teams career.

Chris has worked with Microsoft Teams since 2017 and has architected and overseen deployments of Teams in Healthcare, Education, Financial, and Manufacturing for the majority of his Teams career. Show more

Rahul Kiran Talaseela is a results-driven Technical Architect and ERP Consultant with over 15 years of specialized experience in Microsoft Dynamics 365 Finance & Operations, Power Platform, and AI-powered automation solutions. Based in North Brunswick, New Jersey, he has established himself as a leading expert in digital transformation initiatives, helping organizations streamline business processes and integrate advanced data solutions to enhance reporting, decision-making, and operational efficiency.
Throughout his career, Rahul has been involved in six full life cycle ERP implementations, demonstrating deep expertise across financial, procurement, and manufacturing modules within D365 F&O. His technical proficiency spans advanced programming languages, including X++, C#, and SQL, complemented by extensive experience with Microsoft Visual Studio, Azure services, and modern integration protocols. He has successfully led teams and managed complex projects for notable organizations, including SourceAmerica, Antares Capital LP, and S'well Bottle, consistently delivering innovative solutions that drive business value.
Currently serving as a Senior Application Developer at SourceAmerica, Rahul plays a pivotal role in the organization's Digital Transformation Initiative, migrating legacy applications to Microsoft ecosystem solutions and implementing cutting-edge technologies like Power BI for real-time analytics. His expertise extends to cloud architecture, where he has designed scalable data pipelines using Azure Data Lake, Data Factory, and Synapse for robust data integration and reporting solutions.
Rahul's unique combination of technical depth and business acumen has enabled him to successfully integrate D365 F&O with various third-party systems, including payment gateways, logistics providers, and financial planning platforms. He holds a Bachelor of Technology in Information Technology from Sri Kottam Tulasi Reddy Memorial College of Engineering and maintains a technical blog at http://rahulmsdax.blogspot.com, where he shares insights from his extensive experience in the Microsoft Dynamics ecosystem.
His commitment to continuous improvement and innovation, coupled with his ability to leverage AI and intelligent automation technologies, positions him as a valuable partner for organizations seeking to modernize their enterprise systems and drive operational excellence through technology.

Rahul Kiran Talaseela is a results-driven Technical Architect and ERP Consultant with over 15 years of specialized experience in Microsoft Dynamics 365 Finance & Operations, Power Platform, and AI-powered automation solutions. Based in North Brunswic... Show more

Gideon has established himself as a Solution Architect in Dynamics and Power Platform applications, with a focus on Business Central. Passionate about technology and its transformative potential, he is dedicated to implementing solutions that push the boundaries of what is possible. Whether discussing the latest trends in Business Central or sharing insights on maximizing the potential of Power Platform applications, he strives to captivate audiences with his passion for technology.

Gideon has established himself as a Solution Architect in Dynamics and Power Platform applications, with a focus on Business Central. Passionate about technology and its transformative potential, he is dedicated to implementing solutions that push th... Show more

Andrew leads a small analytics team for a mid-sized automotive manufacturer, responsible for data integration, engineering, modeling, and visualization. The products in his team's stack include Azure Synapse Analytics, Fabric, and Power BI. He lives and works in Bellefontaine, Ohio.

Andrew leads a small analytics team for a mid-sized automotive manufacturer, responsible for data integration, engineering, modeling, and visualization. The products in his team's stack include Azure Synapse Analytics, Fabric, and Power BI. He lives ... Show more

Latifa DEKHICI is a full professor in computer sciences and vice dean of external relations in mathematics and computer science faculty in the university of sciences and technology of Oran; and a researcher in LDREI, Smart Grid Developement laboratory in the Higher School of Electrical and Energetic engineering of Oran. Her research interests include power dispatch, power system design, healthcare scheduling and green optimization as well as optimization methods especially metaheuristics. DEKHICI has been a member of Inside Project (Inclusion of Students With impairements in Distance Education) in 2023, of DIGITAQ Project about Quality Assurance Digitalization in Higher Education and a responsable of Digitalisation Strategy Office in her university. She partipated as a trainer in many sustainability; digitalization; accessibilty, cyber responsability and inclusivity activities.

Latifa DEKHICI is a full professor in computer sciences and vice dean of external relations in mathematics and computer science faculty in the university of sciences and technology of Oran; and a researcher in LDREI, Smart Grid Developement laborator... Show more

Joanna is an interaction designer, entrepreneur, and thought leader in human-centred technology. She is best known as the creator of Pillow Talk, the world’s first IoT product designed to help couples feel emotionally connected across distance.

With over a decade of experience at the intersection of tech and intimacy, Joanna now runs advises companies on designing digital products that prioritise empathy, trust, and human connection.

Known for her honest, no-fluff approach, she speaks globally on the future of emotionally intelligent tech.

Joanna is an interaction designer, entrepreneur, and thought leader in human-centred technology. She is best known as the creator of Pillow Talk, the world’s first IoT product designed to help couples feel emotionally connected across distance. W... Show more

With over twenty years of experience as CEO in both Europe and North America, Giovanni Giamminola has successfully led entrepreneurial businesses and multinational corporations, managing revenues exceeding one billion euros. His professional journey spans various industrial sectors with a focus on the healthcare sector in recent years. He has directed complex teams in multinational and multicultural environments as well as in family businesses, constantly promoting the adoption of advanced technologies and digital transformation processes as central pillars of his strategic approach and change management.
Graduated in Economics from the Catholic University of Milan, Giovanni has furthered his education with executive programs at Harvard Business School. He has garnered substantial practical experience in designing and implementing digital transformation strategies, an expertise he actively shares in academic settings as well. At the Catholic University, he is a member of the Steering Committee for the first Executive Master in "AI-Driven Business Models" and coordinator of the course "Sector-Specific Innovation and Process Transformation."
He is the author of the book "The Augmented Manager: How Artificial Intelligence Makes Management More Effective, Creative, and Strategic," which draws from his direct experience in introducing machine learning initially, and then generative AI, within the companies he has managed. The book advocates for a conscious and effective use of AI to optimize business management.
His commitment as a promoter is to raise awareness about the profound impacts of artificial intelligence, an epochal transformation for the entire society. He specifically addresses the top roles in companies to ensure they understand the need to immediately prepare, with vision and responsibility, for the greatest revolution in industrial history, which is crucial for future competitiveness.

With over twenty years of experience as CEO in both Europe and North America, Giovanni Giamminola has successfully led entrepreneurial businesses and multinational corporations, managing revenues exceeding one billion euros. His professional journey ... Show more

Danny Page is a cybersecurity professional with a practical edge. Currently pursuing the last year of his Bachelor's in Cybersecurity and Information Assurance at Western Governors University, he brings real-world insight from his role as a Cloud Support Specialist at Fishbowl. Danny has a concentration in Blue Team operations and GRC, blending technical knowledge with a strong service mindset. His background spans customer support, product integration, and post-deployment troubleshooting—giving him a deep understanding of how security impacts end users and daily operations.

Certified with SSCP, CompTIA Project+, Security+, Network+, A+, Linux Essentials, and ITIL Foundation, Danny pairs credentials with action. As a Simply Cyber Local Ambassador for Utah’s Wasatch Front, he’s dedicated to building a strong community, sharing knowledge, and helping others break into the field.

Danny Page is a cybersecurity professional with a practical edge. Currently pursuing the last year of his Bachelor's in Cybersecurity and Information Assurance at Western Governors University, he brings real-world insight from his role as a Cloud Sup... Show more

👋 Hello, my name's Ayhan and I'm an experienced DevOps Engineer with over 8 years of experience in the IT / Cloud Computing industry. My career is not just a job; it's my passion, purpose, and lifelong commitment.

📚 I believe in continuous learning and staying ahead in this dynamic/ever-changing field. I stay current with the latest cloud trends, best practices, and emerging technologies to deliver cutting-edge solutions.

🎓 I hold a Master's degree in Big Data & Text Analytics, where I excelled with a merit grade, harnessing the power of data processing and analytics to unlock insights in vast datasets.

🌍 My journey in the cloud industry began in 2018 when I joined Inawisdom with zero cloud experience. Through determination, dedication, and a thirst for knowledge, I transformed from a newcomer to a highly skilled individual in all things AWS, cloud architecture, and more.

💼 I've earned my stripes in cloud computing and infrastructure management, with a strong focus on AWS. My extensive AWS certifications (9 and counting), Terraform Associate, GitHub Actions, GitHub Foundations and Certified Kubernetes Administrator qualifications further validate my expertise/knowledge in deploying and managing cloud applications/infrastructures at scale using CI/CD and also underscores my commitment to staying at the forefront of a quickly changing industry. I have also recently begun my journey with GCP and have attained the Cloud Digital Leader Certification.

🤝 Let's connect and explore how we can collaborate on cloud initiatives, share insights, and collectively shape the future of cloud engineering.

👋 Hello, my name's Ayhan and I'm an experienced DevOps Engineer with over 8 years of experience in the IT / Cloud Computing industry. My career is not just a job; it's my passion, purpose, and lifelong commitment. 📚 I believe in continuous learn... Show more

Michael Allison, is a U.S. Marine Purple Heart Veteran, award-winning entrepreneur, best-selling author, and international keynote speaker. A globally recognized expert in identity-driven leadership and organizational resilience, Michael transforms adversity into strategic advantage. Over two decades, he has led Marines in combat, managed multi-million-dollar government projects, directed higher-ed programs, and scaled an INC 5000 franchise to successful exit. Michael equips leaders and teams to break internal limitations, guard energy, and thrive under pressure. His signature frameworks—Break The Bottle and Protect The House—blend combat-tested leadership, trauma-informed coaching, and enterprise execution discipline. Michael has delivered transformational keynotes, workshops, and consulting for world-class organizations globally. He empowers professionals to align technical brilliance with human resilience and lead with clarity, creativity, and conviction.

Michael Allison, is a U.S. Marine Purple Heart Veteran, award-winning entrepreneur, best-selling author, and international keynote speaker. A globally recognized expert in identity-driven leadership and organizational resilience, Michael transforms a... Show more

Dave has been working in the world of bookkeeping for more than a decade, first as the founder of The Kersting Group, and now as the founder and CEO of Capovario. His mission is to bring new life and energy to the types of business services people typically hate and avoid, including bookkeeping, accounting, insurance, finance, employee benefits, marketing, and more. Dave and the Capovario team work tirelessly to help business owners work on the parts of their business they love while his team handles the rest.

Dave has been working in the world of bookkeeping for more than a decade, first as the founder of The Kersting Group, and now as the founder and CEO of Capovario. His mission is to bring new life and energy to the types of business services people ty... Show more

Frank Maier is the CEO of DynamicsGlobalProjects GmbH and has been involved in the Microsoft Dynamics ecosystem for over two decades. He began his career as a developer, quickly advancing to consultant and project manager roles. His passion has always been large-scale international ERP implementations with Business Central and NAV.

Frank was formerly CEO of OctoCon AG and, following its successful acquisition, served on the executive team of YAVEON GmbH. Since 2003, he has also been a board member of Directions EMEA, helping shape the future of the Dynamics partner community.

He lives with his wife and children in the countryside of Southern Germany.

Frank Maier is the CEO of DynamicsGlobalProjects GmbH and has been involved in the Microsoft Dynamics ecosystem for over two decades. He began his career as a developer, quickly advancing to consultant and project manager roles. His passion has alway... Show more

From early roots in web development and SAP consulting, my journey evolved through enterprise architecture to cloud-native solutions.
In my current role at Cloud Native Lifecycle Management @ SAP, I combine my expertise with cloud technologies to drive innovation and enterprise grade automation of infrastructure-as-data on a global scale.

From early roots in web development and SAP consulting, my journey evolved through enterprise architecture to cloud-native solutions. In my current role at Cloud Native Lifecycle Management @ SAP, I combine my expertise with cloud technologies to d... Show more

Arijit comes with a unique blend of development, leadership, and entrepreneurial background. In his career spanning over 27+ years, he has not only worked on multiple technology stacks, but has also worked with multiple organizations in diversified roles and portfolios. Also, he has strong experience in consulting and leading large enterprise transformations, including process improvement and technology-based solutions - across both public and private sectors. Additionally, he is skilled at developing and executing consulting strategies to drive increased productivity and establishing a strong, collaborative team culture. He is equally versed with new technologies in the space of Social, Mobile, Analytic, and Cloud (SMAC) and loves to use them towards business gain for his customers.

Arijit comes with a unique blend of development, leadership, and entrepreneurial background. In his career spanning over 27+ years, he has not only worked on multiple technology stacks, but has also worked with multiple organizations in diversified r... Show more

Shubham Beldar is a data-driven and customer-focused Solutions Engineer with extensive expertise in supply chain management and warehouse automation. Currently serving as a Solutions Engineer for Warehouse Automation design at Symbotic LLC in Boston, he specializes in optimizing end-to-end supply chain solutions and designing logistics robotics technologies. Shubham has demonstrated exceptional results across multiple organizations, including Symbotic LLC, Americold Logistics, GreyOrange, and One H2 Inc.
His technical expertise spans supply chain automation, material handling equipment (MHE), solutions design, process optimization, mathematical modeling, and data analytics. Shubham is proficient in tools including Tableau, Power BI, MS Excel, Power Query, ERP, WMS, WES, Salesforce, JIRA, Oracle, Red Prairie, AutoCAD, and Visio. Throughout his career, he has consistently delivered breakthrough results, including a 30% reduction in operational costs and a 40% increase in efficiency across Walmart Distribution Centers and other major grocery brands through the implementation of automation solutions. At GreyOrange, he supported USD 10 million ACV-generating projects while collaborating with Solution Design, Sales, and Product Teams, leading to a 20% increase in operational efficiency for clients through the implementation of robotic systems and warehouse management software. At Americold Logistics, he achieved a 15% reduction in operational costs through strategic process improvements, technology integration, and efficient resource management.
Shubham holds a Master of Science in Engineering and Operations Management from the University of New Haven, Connecticut (CGPA: 3.6), and a Bachelor of Engineering in Electronics Engineering from Mumbai University, India (CGPA: 3.2). His academic foundation is complemented by certifications including Lean Six Sigma white belt, Data Analytics fundamentals by AWS, and Dale Carnegie training. An active participant in the warehouse automation industry, Shubham has attended MODEX 2022, 2024, and Promat 2025, and served as a MODEX exhibitor in 2022, representing GreyOrange Inc.
Committed to promoting effective problem-solving and achieving breakthrough results, Shubham is innovative and resourceful in conceiving and implementing creative logistics solutions. He excels at managing operations and projects while consistently delivering desired results and contributing to company goals. Based in Atlanta, Georgia, Shubham continues to drive efficiency and transformation in warehouse automation, leveraging his expertise in logistics robotics solutions.

Shubham Beldar is a data-driven and customer-focused Solutions Engineer with extensive expertise in supply chain management and warehouse automation. Currently serving as a Solutions Engineer for Warehouse Automation design at Symbotic LLC in Boston,... Show more

Jim is a Data Engineer 4 for Blueprint Technologies. He lives just outside of Pittsburgh, PA in a small suburb called South Park. He loves working with all things Azure(ARM templates, Azure SQL Database, SQL on IaaS). He is an avid collector of retro video games! He was a member of the Idera ACE program for 2018.

Jim is a Data Engineer 4 for Blueprint Technologies. He lives just outside of Pittsburgh, PA in a small suburb called South Park. He loves working with all things Azure(ARM templates, Azure SQL Database, SQL on IaaS). He is an avid collector of retro... Show more

Terry is a serial entrepreneur with over 25 years of
experience safeguarding public, corporate, and government
sectors from cyber threats. A certified ethical hacker and
former government red team leader, he is also a renowned
expert in ICS/OT incident response and preparedness
training, driving innovation in cybersecurity defense
strategies.

Terry is a serial entrepreneur with over 25 years of experience safeguarding public, corporate, and government sectors from cyber threats. A certified ethical hacker and former government red team leader, he is also a renowned expert in ICS/OT in... Show more

At Waterfall Security Andrew leads a team of experts who work with the world's most secure industrial enterprises. Before Waterfall, he led the development of high-end industrial control system products at Hewlett-Packard, of IT/OT middleware products at Agilent Technologies, and of the world's first industrial SIEM at Industrial Defender. Andrew is the author of three books on industrial / OT cybersecurity, a co-author of the Industrial Internet Security Framework, and a co-author of the UITP report on cybersecurity requirements in rail system tendering. He co-hosts the Industrial Security Podcast and contributes regularly to industrial security standards and best-practice guidance.

At Waterfall Security Andrew leads a team of experts who work with the world's most secure industrial enterprises. Before Waterfall, he led the development of high-end industrial control system products at Hewlett-Packard, of IT/OT middleware product... Show more

Computational Designer/Developer and work on projects involving 3D modeling and/or programming.
I like working on projects involving application of computational logic for design purposes at all scales.

Computational Designer/Developer and work on projects involving 3D modeling and/or programming. I like working on projects involving application of computational logic for design purposes at all scales. Show more

(Spanish version below)

Fernando Oleo Blanco (Irvise on the net) is a young engineer pasionate with libre software and mechanical engineering. Currently, he is working in the energy sector, focusing mostly in the nuclear world, with projects related to fusion energy and Gen IV nuclear reactors. At an early age, his passion of libre software soon met his studies in engineering and both sides have been complementing each other ever since. The software communities he is involved mostly with are CAD/FEM/CFD software and Ada. Additionally, he is always happy to help people learn about software and spread the word on the libre philosophy. However, mechanical engineering is not all: operating systems, music, art, decentralization, rogelikes, typography and unrestricted access to information are also part of his interests.

Fernando Oleo Blanco es un joven ingeniero mecánico e industrial. Actualmente trabaja como diseñador de sistemas nucleares, tanto para reactores de IV generación como la investigación de la fusión. El mundo del software libre le apasiona y representa uno de sus mayores hobbies. Tiene especial presencia en comunidades ingenieriles y de simulación (CAD, FEM, CFD...) y en la comunidad del lenguaje de programación Ada/SPARK. Adicionalmente, Fernando es una mente inquieta a quien le apasiona la música, los rogelikes, la tipografía y la investigación.

(Spanish version below) Fernando Oleo Blanco (Irvise on the net) is a young engineer pasionate with libre software and mechanical engineering. Currently, he is working in the energy sector, focusing mostly in the nuclear world, with projects relat... Show more

I am been working in highly complex systems since 2002, leading multidisciplinary teams in the development of software solutions in the areas of retail, aerospace, logistics, education, health, and finance. Specializes in Digital Transformation, Solution Architectures, and On-line available content;

I am been working in highly complex systems since 2002, leading multidisciplinary teams in the development of software solutions in the areas of retail, aerospace, logistics, education, health, and finance. Specializes in Digital Transformation, Solu... Show more

As a strategic designer, I inspire people to create more meaning.
In the companies where I create, I build knowledge and teams.
I commit them to human-centricity.
Which means that they solve real persons' problems through scientific methods.

For 15 years, I have been focussing on accessibility and inclusion.
Two subcategories of sustainability.

❌ The following two quotes describe my generation's problem to solve.

❌ "Form-follows function is the excuse for shitty design!" quote of my mentor Hartmut Esslinger

❌ "Lipstick on a pig - Underneath it's still a pig!"

My recipe:

✅ "It must not be pretty. It has to neurologically and emotionally work!"

What I do next to building up human centred design knowledge and teams:

👉 Currently I am writing my book on accessibility as a revenue accellerator. The title is "How many F-UX do I give"

👉 I have been building open source a11y games to solve life's serious issues with ease...

👉 With my own company I focus on a11y. We make product and service companies fit for the European Accessibility Act.

As a strategic designer, I inspire people to create more meaning. In the companies where I create, I build knowledge and teams. I commit them to human-centricity. Which means that they solve real persons' problems through scientific methods. ... Show more

Martin Brunke delivers powerful presentations that transcend traditional leadership insights, drawing on over two decades of experience coaching major college football and leading complex business transformations. He challenges organizations to cultivate the "Tom Brady Mindset"—a system he’s uniquely engineered and proven to instill—resulting in teams and leaders who operate with the unflappable confidence, profound trust, and crystal-clear clarity essential for today's complex demands. Martin's extensive background building and scaling PMOs underscores his ability to translate this system into practical, strategic impact, providing a tangible pathway for organizations of all sizes to achieve real agility and consistently turn uncertainty into opportunity.

Martin Brunke delivers powerful presentations that transcend traditional leadership insights, drawing on over two decades of experience coaching major college football and leading complex business transformations. He challenges organizations to culti... Show more

Over 20 years of experience in the Dynamics world. Currently leading implementation projects and delivery teams at Reach, where we focus on delivering and fixing Dynamics 365 implementations.

Over 20 years of experience in the Dynamics world. Currently leading implementation projects and delivery teams at Reach, where we focus on delivering and fixing Dynamics 365 implementations. Show more

Azure is a Senior Consultant at Hitachi in the Washington, DC area. Prior to joining tech consulting in 2022, she spent in pharmaceutical manufacturing, discovering Power Automate in late 2019.

Passionate about people and hoping to assume her final form as a bot, she's on a mission to educate and enable more women and underrepresented groups into tech, one Flow at a time.

Azure is a Senior Consultant at Hitachi in the Washington, DC area. Prior to joining tech consulting in 2022, she spent in pharmaceutical manufacturing, discovering Power Automate in late 2019. Passionate about people and hoping to assume her fina... Show more

Danielina strast za svemirom snage nuklearnog reaktora najbolje opisuje njenu motivaciju za pokretanjem projekta CroCube. Direktorica je prodaje i marketinga tvrtke Spacemanic te živi i diše svemir u svemu što radi.
Teleskopi, amaterski radio, rakete ni sateliti joj nisu strani, a glavna joj je misija popularizirati znanost, stvoriti prilike za mlade te pomoći Hrvatskoj u stjecanju iskustva u svemirskoj industriji. Daniela je radila na lansiranju već nekoliko satelita – VZLUSAT-2, BDSat-1, BDSat-2, Planetum-1, Veronika, a kao mozak i srce ove operacije ima veliku želju i Hrvatsku približiti zvijezdama.

Danielina strast za svemirom snage nuklearnog reaktora najbolje opisuje njenu motivaciju za pokretanjem projekta CroCube. Direktorica je prodaje i marketinga tvrtke Spacemanic te živi i diše svemir u svemu što radi. Teleskopi, amaterski radio, raket... Show more