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11min chapter
Cosmic Queries – Single Electron Universe with Charles Liu
StarTalk Radio
Perception of Color and the Speed of Light
The chapter explores the perception of color, including how our brains interpret red and blue cones as violet, even though it's not between them on the spectrum. It discusses the physics of light wavelengths, biology of color perception, and the role of quantum mechanics in vision. The conversation transitions to the speed of light, touching on the limitations for objects with mass to reach or exceed that velocity, tachyons as theoretical faster-than-light particles, and the implications of tachyons moving backward in time.
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Discover
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Listen to the best highlights from the podcasts you love and dive into the full episode