Science with Njelama

Epizodes

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  From Namwala to Cambridge: Choonzo Chiyumba's Science Journey 11.09.2026 59min

  A rural girl from Zambia who never saw a real chemistry lab grows into a Cambridge PhD scholar in inorganic chemistry—and her path is anything but linear. Choonzo Chiyumba shares the moments that transformed her from a school-loving child who wanted to be a banker into a scientist pursuing cancer research, global scholarships, and a future in leadership.Along the way, she reveals how synthesizing paracetamol sparked her passion for chemistry, why she shifted from physiotherapy and physics into life sciences, and how rejection, waitlists, and limited research exposure ultimately pushed her higher. This is the story of a woman who saved intentionally for school, faced imposter syndrome, and kept moving forward with one guiding principle: keep going.Choonzo reflects on her journey through the University of Zambia, Rhodes University, and Cambridge, including her master’s research on photodynamic therapy and porphyrins. She also discusses how her PhD led her from medicinal chemistry into catalysis and synthesis.Beyond the laboratory, Choonzo shares what it takes to navigate elite scientific spaces as a Black woman, the importance of mentors and support systems, and the role of community in building confidence. She also talks about creating balance through music, choir, running, and cycling.This episode explores the gaps in chemistry education, the importance of practical laboratory exposure, and why a lack of opportunity should never be mistaken for a lack of ability. Choonzo’s story is a powerful reminder that a dream can begin in a rural classroom and still lead to Cambridge.Perfect for students, aspiring scientists, young women in STEM, and anyone who needs encouragement to pursue an ambitious goal, this conversation offers inspiration, practical insight, and a reminder that persistence can open doors.Connect with Choonzo Chiyumba:LinkedIn: https://www.linkedin.com/in/choonzo-nachoobe-chiyumba-188270156/Website: https://chobewangu.space/
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  Miyanda on curiosity, setbacks, and building a career in soil science 28.08.2026 1h 34min

  From a curious child with no fixed career plan to a researcher navigating Zambia, Russia, Germany, and Sweden, her story is about more than education it's about resilience, reinvention, and learning to trust the detours. Dr. Miyanda shares how teachers who adapted to her learning style changed everything, why she initially felt like an imposter in science, and how being forced to start over in a new language taught her independence. She also opens up about the emotional weight of studying abroad, the pressure of speaking up in predominantly white academic spaces, and what it really takes to keep going when your environment is working against you. You'll discover:Why she thought she would become a mathematician, then an engineer, then ended up in soil scienceHow Russia's exam-driven system and oral defenses reshaped her confidenceWhy her master's in Germany gave her the freedom to explore sustainability, organic agriculture, marketing, and policyThe surprising findings from her PhD on carbon storage, soil minerals, roots, and the assumptions behind climate modelsWhy she believes African knowledge around farming, composting, and urban agriculture deserves to be treated as real scientific knowledgeMiyanda also explains why sustainability in Africa looks very different from the way it's packaged in the global north, from maize monocultures and fertilizer dependence to indigenous crops, food systems, and the politics of carbon credits. Her reflections on veganism, climate justice, and the future of agriculture make this episode especially relevant if you care about science, education, African innovation, or the hidden politics shaping what counts as knowledge.Perfect for students, young women in STEM, researchers, and anyone who has ever felt "not enough" on the way to becoming exactly who they were meant to be.Dr. Miyanda Chipilamushi is a Zambian scientist and researcher whose work spans soil science, sustainability, and climate-related agricultural systems. Her journey across multiple countries and disciplines offers a powerful perspective on what it means to build expertise without losing curiosity.Dr. Miyanda’s PhD Thesis:·       The role of oxalate-extractable aluminum and root inputs in carbon storage in Swedish agricultural soils: ‘beyond the average’Connect with Miyanda:LinkedIn 
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  Unlocking the Power of Math: How a Zambian Woman Became a Leading Mathematician Abroad 13.08.2026 1h 24min

  Mathematics isn’t just numbers; it’s a global language that shapes our future—and Marjory Mwanza proves it. From humble beginnings in Chongwe, Zambia, her journey shows how passion, resilience, and a relentless pursuit of knowledge can defy stereotypes and open doors. From dreaming of becoming an engineer to pursuing advanced mathematics abroad, Marjory’s story is one of courage, perseverance, and breaking barriers.In this episode, Marjory shares her experience of overcoming self-doubt and navigating academic and cultural challenges while studying abroad. As the only female and Black mathematician at her university, she reflects on representation, belonging, and the importance of finding the confidence to pursue ambitious goals even when you don’t see many people like yourself in the room.She discusses her research in geometric group theory, her passion for mathematics, and her vision for creating greater opportunities for African students. Marjory highlights important gaps in Zambia’s education system, including access to mentorship, training, resources, and opportunities for students interested in STEM.We also explore the role of mathematics in artificial intelligence and machine learning, the value of mentorship, and the importance of making international opportunities more accessible to African students. Marjory shares her plans to empower young people through her foundation and innovative training initiatives, with a particular focus on helping the next generation build the skills and confidence needed to succeed.Her story is especially powerful for young girls in Zambia and across Africa who may be considering careers in mathematics, science, technology, engineering, or other fields where women remain underrepresented. Marjory’s journey is a reminder that talent exists everywhere—and with determination, mentorship, and opportunity, it can flourish anywhere.Whether you’re a student, educator, researcher, or simply curious about mathematics and the people who pursue it, this episode offers an inspiring look at resilience, representation, education, and the future of African STEM.GuestMarjory Mwanza is a PhD candidate in mathematics at the University of Münster, researching algebra and geometric group theory. She is also an entrepreneur, mentor, and author of the upcoming book Scribbled in Charcoal: A Memoir of Defiance and the Search for Proof. Through her work, she is committed to supporting African STEM talent and creating pathways for young people to access knowledge, mentorship, and opportunities.Connect with MarjoryFacebook: Marjory Mwanza on FacebookLinkedIn: Marjory Mwanza on LinkedInProskills Institute: Proskills Institute WebsiteIf you’re passionate about mathematics, women in STEM, education, African innovation, or creating opportunities for the next generation, this episode is essential listening. Marjory Mwanza’s journey is a testament to resilience, the power of representation, and the limitless potential of young minds across Africa.#Mathematics #STEM #AfricaInSTEM #WomenInMath #EducationReform #Mentorship #Research #Inclusivity