The physics of why walls block your vision but not your Wi-Fi
In short: Ever wondered why you can't see through a brick wall but can still browse the internet from another room? This video explores the fundamental principles of wave optics and the electromagnetic spectrum to explain how different wavelengths interact with physical matter.
The distinction lies in the behavior of waves across the electromagnetic spectrum. While visible light has short wavelengths that are easily obstructed or reflected by solid objects, radio waves possess much longer wavelengths that allow them to pass through many materials via diffraction and other wave properties.
The content connects these phenomena to core concepts in physics and engineering, including reflection, refraction, interference, and polarization. It provides a comprehensive look at how signal processing and Fourier transforms help us understand and manipulate these invisible waves in modern electronics.
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Sources
- Summary by Intellect · source: Why Walls STOP Light Waves But Not Radio Waves?
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