The Ten Minute Bible Hour Podcast JOHN012 - Light Always Wins
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Feb 24, 2026 
Destin Sandlin, engineer and creator of Smarter Every Day and co-host of No Dumb Questions, brings playful curiosity and physics chops. He unpacks the electromagnetic spectrum and what light is. They explore historical and modern views of vision and why John 1 uses light imagery. Conversation ties scientific wonder to theological themes like revelation and transcendence.
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Phone Chat About The Electromagnetic Spectrum
- Matt phones his friend Destin Sandlin to discuss a poster in Destin's editing room showing the electromagnetic spectrum.
- Destin recounts the poster explaining visible and invisible light from radio waves up to gamma rays, sparking their conversation about biblical light.
Visible Light Is Just A Small Slice
- Visible light is one slice of a huge electromagnetic spectrum that includes ultraviolet, infrared, microwaves, x-rays, and gamma rays.
- Wavelengths (like ~650 nm for red) define visible colors while frequencies and wavelengths describe nonvisible radiation.
Light Behaves Like Particle And Wave
- Physics frames light as both particle and wave, with experiments like the double slit revealing duality and polarization adding complexity.
- Destin emphasizes the mysterious nature of light and admits uncertainty about deeper physical explanations.