Lexicon

Hosted by Interesting Engineering

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Episodes

122

Latest episode

Aug 2026

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About the show

Explore the future of innovation with 'Lexicon by Interesting Engineering' – a captivating podcast that dives into the heart of groundbreaking advancements. Join us for engaging conversations with leading experts in engineering and technology. Each episode of Lexicon unravels the stories of inspiration, the mechanics of breakthroughs, and peeks into what the future holds. Discover the fascinating journey of how today's ideas are shaping tomorrow's world. https://interestingengineering.com/newsletters

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60 recent

September 18, 202634 min

No gunpowder, no rockets: the electric future of defense

In this episode, we are joined by Winnie Lai, founder and CEO of Auriga Space , to explore how electromagnetic launch technology could transform counter-drone defense. We discuss why using multimillion-dollar missiles against low-cost drones is becoming unsustainable, how Auriga’s frictionless magnetic-launch system works, and why the same core technology could one day help launch satellites, or even transport materials from the Moon. Also, don’t forget to subscribe to IE+ for premium insights and exclusive content!

September 11, 202629 min

Philippe Berlan on the science behind sustainable textile dyeing

In this episode of Lexicon, we sit down with Philippe Berlan , CEO of EverDye , to explore one of fashion's biggest environmental challenges: textile dyeing. With dyeing responsible for a significant share of the industry's carbon emissions, Philippe explains how new biobased technologies could dramatically reduce energy use, water consumption, and reliance on petrochemicals. Also, don’t forget to subscribe to IE+ for premium insights and exclusive content!

September 3, 202638 min

The Turbine Lighting Up Africa: Ghana's Wind + Solar Breakthrough

A boy who once woke up in his own sweat during blackouts grew up to build the machine ending them. In this episode we sit down with Johannes Amo Aye, founder of Minaji Energy, to talk about the Fusion Wind Turbine: a gearless, oil free hybrid system combining wind and solar in one unit, built to run 20 to 25 years with almost no maintenance. He shares the story of a night when midwives delivered a baby using two phone torches, why 90% of the system is manufactured in Ghana, and what it means to build Africa's energy future with African engineers. In this episode: A blackout tragedy in a maternity ward and the turnaround a year laterThe engineering behind a gearless, lubricant free wind turbineThe MTED program training local youth as techniciansShortlisted for the Royal Academy of Engineering Africa PrizeThe roadmap to scaling past 100 turbines Also, don’t forget to subscribe to IE+ for premium insights and exclusive content!

August 27, 202638 min

AI is lowering the barrier to launching sophisticated cyberattacks

AI is making cyberattacks faster, cheaper, and more accessible by allowing attackers to automate tasks such as reconnaissance, vulnerability discovery, infrastructure mapping, and attack planning. In a recent Lexicon interview, Redsift CEO Rahul Pavar explains how AI is shifting cybersecurity from human speed toward machine speed, why critical infrastructure such as water utilities could become softer targets, and why organizations need to focus on fundamentals like MFA, continuous asset discovery, attack surface management, and faster threat detection. He also expects the next 6 to 18 months to bring a surge in vulnerabilities as AI uncovers weaknesses that may have existed for years but were previously too difficult to find. Also, don’t forget to subscribe to IE+ for premium insights and exclusive content!

August 20, 202629 min

Can ordinary sand solve the global energy crisis?

Lithium runs out. Batteries degrade. But sand? It lasts billions of years. In this episode of Lexicon , Interesting Engineering sits down with Annette Haglund-Dones (CCO at Polar Night Energy) to reveal how they turned ordinary sand into a massive thermal battery—and survived one of Finland’s coldest winters on record. Here is what you’ll discover: Zero Degradation: Why sand beats lithium for long-duration heat storage. The Scaling Surprise: What happened when they built a battery 20x larger than the prototype. Industrial Decarbonization: How 250°C heat stored in sand can replace fossil boilers. Listen now to discover why the future of clean energy might be beneath our feet. Also, don’t forget to subscribe to IE+ for premium insights and exclusive content!

August 13, 202642 min

Can iron nitride magnets replace rare earth magnets?

In this episode of Lexicon by Interesting Engineering , Christopher McVadden speaks with Tom Granger of Niron Magnetics about iron nitride magnets , rare earth free permanent magnets, and the future of magnetic materials. They explore how iron nitride could transform electric vehicles, robotics, data centers, defense systems, electric motors, and global magnet supply chains , while reducing dependence on rare earth elements and China. Also, don’t forget to subscribe to ⁠IE+⁠ for premium insights and exclusive content!

August 7, 202638 min

Karen Panetta on why engineering education needs a “kick in the pants”

In this episode of Lexicon, we sit down with IEEE Fellow Dr. Karen Panetta , Dean of Graduate Education at Tufts University and co-inventor of the first digital twin. From AI ethics to the soft skills engineers are missing, she argues that engineering education is overdue for a serious overhaul. Why are we still training students to pass exams instead of solving real-world problems? And in an age of generative AI, what does it actually mean to think and design like an engineer? Also, don’t forget to subscribe to IE+ for premium insights and exclusive content!

July 29, 202643 min

AI-enhanced, human-led: the modern marketing stack

In this episode of Lexicon, we sit down with Tiffany Nwahiri , founder and CEO of 3rd + Taylor , to unpack how marketing teams can still drive growth when budgets are tight, jobs are shrinking, and AI is changing the rules. Tiffany shares why “pipeline over perfection” matters, how to make your website your best salesperson, and why the winners will be marketers who learn to leverage AI, not fear it. Also, don’t forget to subscribe to IE+ for premium insights and exclusive content!

July 22, 202625 min

The Hidden Physical Side of AI: Steel, Wires, and Megawatts

In this episode, Diane Watkins , Vice President of New Initiatives & Outreach of the IEEE Power and Energy Society , joins us to unpack how AI-driven data centers are straining power grids, and what it will take to keep the lights on. Also, don’t forget to subscribe to IE+ for premium insights and exclusive content!

July 15, 202642 min

From years to weeks: how AI is rewriting materials discovery

In this episode of Lexicon , we sit down with Matlantis application scientist Josh Young to break down how researchers are using AI-powered simulations to screen millions of materials faster, why speed often matters more than perfect accuracy, and where automation still falls short. Also, don’t forget to subscribe to IE+ for premium insights and exclusive content!