About this episode
<p>Imagine a world in which your laptop or mobile device accesses the internet, not via radio waves – or WiFi – as it does today but by using light instead: LiFi.</p><p>Well, that world may not be as far away as you might think. In fact, the technology is already here; and it’s thanks in large part to the engineering ingenuity of Harald Haas, Distinguished Professor of Mobile Communications and Director of the Li-Fi Research and Development Centre at the University of Strathclyde.</p><p>He tells Jim Al-Khalili about the two decades he has spent researching optical wireless communications, building up to his LiFi breakthrough in 2011, where he made waves in the scientific community and beyond by showing how a simple desk lamp could be used to stream a video.</p><p>Harald’s research could well have a very real impact on people’s lives, reinventing the way we connect online – but, as Jim hears, his early life was dogged by a very real fear he may have the same devastating disease that took his mother's life at an early age; an experience that shaped his early years and which has driven him to succeed in his own life and career.</p><p>(Image: Harald Haas. Credit: Harald Haas)</p>
Listen to this episode in English to learn English
Podcast episodes are one of the highest-density ways to absorb English at native pace. The Life Scientific: Harald Haas from Discovery gives you natural dialogue, unscripted speech, and vocabulary that actually appears in real conversations.
In the Clue app, every word in the transcript is tappable. Tap an unknown word, see the translation in your language instantly, and keep listening without breaking flow.
Episodes to Learn English
- The friendly virus Jun 22, 2026
- The Life Scientific: Dean Lomax Jun 15, 2026
- The Life Scientific: Helen Hastie Jun 8, 2026
- The Life Scientific: Seth Berkley Jun 1, 2026
- The Life Scientific: Hiranya Peiris May 25, 2026
- The Life Scientific: Washington Yotto Ochieng May 18, 2026
- The Life Scientific: Lucy Carpenter May 11, 2026
- The Life Scientific: Jens Juul Holst May 4, 2026
- The Life Scientific: Jim Ashworth-Beaumont Apr 27, 2026
- Inside Universe 25 Apr 20, 2026
- Dark Breath Apr 13, 2026
- Superbugs: Resistance Rising Part 3 Apr 6, 2026
- Superbugs: Resistance rising, part 2 Mar 30, 2026
- Superbugs: Resistance rising, part 1 Mar 23, 2026
- The Life Scientific: Jehane Ragai Mar 16, 2026
- The Life Scientific: Tony Juniper Mar 9, 2026
- The Life Scientific: Pierre Friedlingstein Mar 2, 2026
- The Life Scientific: Julia Simner Feb 23, 2026
- The Life Scientific: Caroline Smith Feb 16, 2026
- The Life Scientific: AP De Silva Feb 9, 2026
- The Life Scientific: Eleanor Schofield Feb 2, 2026
- The Life Scientific: Peter Knight Jan 26, 2026
- Frontiers of Earth Science Jan 19, 2026
- Frontiers of Space Science Jan 12, 2026
- What is Quantum? Jan 5, 2026
- The Life Scientific: George Church Dec 29, 2025
- The Life Scientific: Gareth Collett Dec 22, 2025
- The Life Scientific: Sonia Gandhi Dec 15, 2025
- The Life Scientific: Mark O'Shea Dec 8, 2025
- Waking up with a different voice Dec 1, 2025