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But Why: A Podcast for Curious Kids
Where does the sky end?
May 17, 2024
Anthropologist Hugh Raffles and astronomer John O'Meara discuss where the sky ends and the concept of distinguishing between sky and space. They explore the interactions between air and space, the multitude of sky inhabitants like insects, and the invisible world of air molecules. The podcast challenges conventional perspectives on the border between sky and space with insightful reflections and scientific analysis.
23:11
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Quick takeaways
- The boundary between the sky and space is complex, defined by factors like the Carmen line and satellite orbits.
- Insects form a diverse ecosystem in the sky, showcasing intricate movements and adaptations for travel.
Deep dives
Exploring the Sky and Its Boundaries
The episode delves into the concept of the sky and where it meets space. Discussions with experts like Hugh Raffles and John O'Mira reveal how the boundary between the sky and space is not straightforward. Various definitions are highlighted, such as the Carmen line, based on physics, and international law defining the orbit of satellites. The density of air molecules plays a critical role in understanding this boundary.
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Discover
highlights
Listen to the best highlights from the podcasts you love and dive into the full episode