Episodes

  • From Failed Project to 40 Million Eye Scans: David Huang on the Birth of OCT
    Jan 6 2025

    Dr. David Huang shares the remarkable journey of how a failed laser surgery project during his MD-PhD studies at MIT led to the invention of Optical Coherence Tomography (OCT), now used in over 40 million eye procedures annually. The story includes a pivotal moment when Professor James Fujimoto volunteered as the first human subject for OCT testing when no other students would agree to have an experimental laser pointed at their eye.

    The development of OCT was made possible by the 1980s telecommunications boom, which provided crucial fiber optic components. Dr. Huang's unique background combining computer science and medicine proved essential for creating this breakthrough technology. The conversation also explores OCT's rapid commercialization, its impact on treating age-related macular degeneration, and future developments including smartphone-based screening and potential applications for diagnosing brain and heart disease through retinal imaging.

    Reference Paper on OCT (Science 1991): https://www.science.org/doi/10.1126/science.1957169

    02:31 Understanding Optical Coherence Tomography (OCT)
    04:09 The Evolution of Eye Imaging Techniques
    05:34 Technical Principles of OCT
    10:38 Development and Early Applications of OCT
    15:23 Challenges and Breakthroughs in OCT
    25:54 Clinical Acceptance and Advancements in OCT
    45:32 The Rise of Startups in Academia
    51:27 Future of Imaging Technologies
    54:02 Challenges in Developing OCT on a Chip
    57:27 Rival Optical Imaging Technologies
    01:05:54 Advice for Young Researchers

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    1 hr and 29 mins
  • Origins of Life | Anna Wang on Artificial Cells and Nano-Robots
    Dec 30 2024

    Origins of life researcher Anna Wang takes us on a fascinating journey through the latest theories about how life began, revealing why Darwin's "warm little ponds" are making a comeback and how ocean spray droplets may have served as nature's first test tubes. She explains why early cell membranes were more like soap bubbles - fragile and leaky - and how these imperfections were actually crucial for primitive life to function.

    The conversation explores the cutting edge of synthetic biology, where scientists are attempting to build artificial cells from scratch. Wang shares illuminating analogies, comparing their work to vegan cooking where researchers must recreate sophisticated biological processes without using modern cellular ingredients. She also discusses the ultimate goal of creating truly evolving systems, while acknowledging both the excitement and concerns surrounding such an achievement.

    Throughout the discussion, Wang emphasizes how the complexity of biological systems requires collaboration between physics, chemistry, and biology to unlock the mysteries of life's origins.

    01:58 The Current State of Origin of Life Research
    04:47 Challenges in Building Life from Scratch
    12:28 Energy Sources and Membrane Dynamics
    41:22 Membrane Dynamics and Chemical Gradients
    48:42 Challenges in Synthetic Biology
    59:16 Silicon in Biological Systems
    01:14:37 Reflections and Future Aspirations

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    WEBSITE: https://www.632nm.com

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    1 hr and 16 mins
  • The Future of Fusion | Dennis Whyte on Nuclear Fusion and MIT Plasma Science
    Dec 23 2024

    MIT Professor Dennis Whyte's path to becoming a fusion energy pioneer began with an unlikely source - a Ripley's Believe It or Not comic strip he read as a teenager in rural Saskatchewan. The comic described how a bottle of water could theoretically contain the energy equivalent of 100 barrels of oil through fusion, sparking a lifelong fascination that would shape his career.

    This fascination led Whyte to write his first high school paper on fusion energy and eventually become the first PhD student working on Canada's groundbreaking fusion project with Hydro Quebec. Now as Director of MIT's Plasma Science and Fusion Center, Whyte is leading cutting-edge research in fusion energy, including the development of revolutionary high-field magnets that could make commercial fusion power a reality.

    Our conversation highlights his journey and how curiosity and inspiration led to a scientific career helping solve one of humanity's greatest challenges.

    01:40 Dennis' Journey into Fusion Research
    05:43 Understanding Fusion Reactions and Challenges
    15:02 Containing 100 Million Degree Plasma
    36:01 Why Deuterium-Tritium is the Sweet Spot
    45:08 Understanding Plasma and Bremsstrahlung Radiation
    52:45 Fusion Power Plant Challenges and Innovations
    01:31:36 Fusion Challenges and Material Science
    02:07:39 The Future of Fusion


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    WEBSITE: https://www.632nm.com

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    2 hrs and 51 mins
  • Origins of Life | Jack Szostak on Basement Experiments to Nobel Prize-Winning Discoveries
    Dec 16 2024

    Nobel laureate Jack Szostak takes us on a fascinating journey through his remarkable scientific career, from conducting dangerous chemistry experiments in his basement as a curious child to making groundbreaking discoveries about telomeres that would earn him the Nobel Prize. He reveals how a forgotten DNA sample in his freezer led to fundamental insights about chromosome stability, and explains why studying unusual organisms often leads to the biggest scientific breakthroughs.

    Beyond his work on telomeres, Szostak shares his current research into life's origins, including revolutionary ideas about how the first cells might have emerged and replicated their genetic material. He discusses his personal approach to choosing research directions, preferring to work in less crowded fields where he can think deeply about problems rather than competing in trendy areas. This philosophy, combined with his willingness to cross disciplinary boundaries, has enabled him to make transformative contributions across multiple fields of science.

    02:03 Early Career and Interest in Genomics
    03:32 Hot Topics in Biology and DNA Research
    05:40 Telomeres and Chromosome Behavior
    13:48 Telomerase and Its Role in Aging and Cancer
    18:12 Exploring Life Extension and Aging
    30:19 Origins of Life and Prebiotic Chemistry
    43:22 Challenges in Replicating Early Cells
    47:00 Exploring Protocells and Synthetic Biology
    54:51 Environmental Conditions for Origin of Life
    01:06:23 Interdisciplinary Approaches and Future Directions
    01:25:23 Final Thoughts and Reflections


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    1 hr and 26 mins
  • The God Particle | Christoph Paus on Higgs Boson, CERN, and CMS
    Dec 9 2024

    Professor Christoph Paus, a key figure in the discovery of the Higgs Boson at CERN's Large Hadron Collider, discusses his journey in high-energy physics, the challenges of leading large international collaborations, and the future of particle physics. As one of the co-conveners of the CMS Higgs physics group during the historic discovery, Paus provides unique insights into how the detection of this elusive particle was achieved through careful experimental design, data analysis, and team coordination.

    He explains the Standard Model of particle physics, the significance of the Higgs field and boson, and explores current mysteries like dark matter and antimatter asymmetry. The conversation also covers future collider technologies, from circular and linear accelerators to speculative space-based systems, and the ongoing quest to probe higher energy frontiers.

    02:24 Understanding the Standard Model
    08:32 Challenges and Mysteries in Physics
    11:46 The Higgs Field and Its Implications
    18:57 Journey into Physics: From Engineering to Higgs
    22:26 Early Days in High-Energy Physics
    34:14 Leading Large-Scale Physics Collaborations
    51:59 Balancing Project Goals and Individual Interests
    53:07 Community Reviews and Prioritization
    55:50 The Role of Machine Learning in Physics
    56:53 Challenges in Discovering the Higgs Boson
    01:06:07 Future Collider Technologies
    01:34:51 Exploring Dark Matter and Dark Sectors
    01:35:33 Current Anomalies in Physics
    01:40:19 Concluding Thoughts and Future Prospects

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    1 hr and 42 mins
  • Cold Atoms: Mikhail Lukin on Quantum Optics and Neutral Atom Computing
    Dec 2 2024

    In this episode, Harvard Professor Mikhail Lukin discusses his pioneering work in quantum computing using neutral atoms. He shares the journey from his early work in quantum optics and electromagnetically induced transparency to developing programmable quantum processors using arrays of individually trapped atoms.

    Lukin explains key breakthroughs in quantum error correction and how his team achieved unprecedented control over large numbers of quantum bits. He also discusses the fundamental challenges of building practical quantum computers and his optimistic outlook for the field's future.

    01:16 Early Career and Breakthroughs
    01:55 Understanding Lasers and Population Inversion
    03:37 The Birth of Quantum Computing
    04:21 The Evolution of Laser Technology
    06:52 The Impact of Bose-Einstein Condensates
    08:20 First Experiments at Harvard
    11:51 Challenges in Quantum Computing
    20:28 Quantum Error Correction
    28:39 The Role of Rydberg Atoms
    29:46 Building a Quantum Computer
    39:34 Overcoming Skepticism and Funding Issues
    40:46 Technical Innovations in Quantum Computing
    48:27 Future of Quantum Computing


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    51 mins
  • Einstein Was Wrong: John Clauser on Bell's Theorem and the Nature of Reality
    Nov 25 2024

    In this episode, we sit down with Nobel laureate John Clauser to discuss his experiments from the early 1960’s, testing Bell's inequalities and quantum entanglement. Clauser shares the story of how, as a graduate student, he proposed testing quantum mechanics against Einstein's local realism - an idea that most prominent physicists, including Richard Feynman, dismissed as a waste of time. Despite the skepticism, Clauser persisted and conducted the first experimental tests that showed quantum mechanics was correct and Einstein was wrong about quantum entanglement.

    Clauser walks us through the technical challenges of the experiments, from building equipment from scratch on a minimal budget to collecting data over hundreds of hours—using punch cards and paper tape. He also discusses the philosophical implications of quantum mechanics and his current views on climate science.

    02:29 The Birth of Bell's Theorem
    05:00 The Struggle to Prove Einstein Wrong
    08:13 The Evolution of Quantum Mechanics Testing
    13:15 Understanding Quantum Entanglement
    22:14 The Historical Context of Quantum Mechanics
    34:56 The Wave-Particle Duality Debate
    41:01 Experimental Challenges and Breakthroughs
    01:09:06 Polarizer Angles and Experimental Errors
    01:11:57 Philosophical Implications of Quantum Entanglement
    01:13:54 Plasma Physics and Particle Interactions
    01:24:29 Quantum Communication and Networking
    01:28:15 Fusion Research and Cold Fusion Controversy
    01:32:59 Critique of Climate Change Science
    01:50:46 Advice for Young Scientists
    01:53:59 Reflections on Experimental Physics and Career

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    2 hrs and 10 mins
  • The Science of Drug Discovery: Insights from Artem Evdokimov
    Nov 18 2024

    In this episode, drug discovery scientist Artem Evdokimov discusses the science of pharmaceutical development, from historical breakthroughs to the current landscape. He shares insights on antibiotics resistance, the obesity drug Ozempic, and technical details of drug screening methods like DNA-encoded libraries.

    The conversation covers the economics of drug development, the potential of AI, and broader philosophical questions about human health and medicine. Evdokimov emphasizes the importance of avoiding oversimplification in science while highlighting both the triumphs and ongoing challenges in pharmaceutical research.

    03:18 Historical Roots of Medicine
    05:33 Evolution of Drug Delivery Methods
    12:52 Modern Drug Discovery and Challenges
    45:39 Understanding the Drug Discovery Process
    47:30 Challenges in Gene Therapy
    49:26 Complexities of Human Physiology
    53:14 The Role of Receptors and Hormones
    01:28:12 The Selenium Shortage and Shampoo Dilemma
    01:28:54 Challenges in Drug Manufacturing and Distribution
    01:34:23 Antibiotic Resistance: A Growing Concern
    01:45:18 The Future of Drug Discovery and AI
    02:11:01 Exploring AI and Drug Discovery
    02:11:41 Outsourcing in Pharma: Pros and Cons
    02:13:56 High Throughput Screening and Machine Learning
    02:16:37 Challenges and Future of Drug Discovery


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    2 hrs and 50 mins