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Right now, invisible signals are flying through the air all around you. Massive radio waves carry information between computers, GPS systems, cell phones, and more. And the sky is flooded with interference from routers, satellites, and, of course, people flying who haven’t put their phones on airplane mode. So, what exactly does airplane mode do? Lindsay DeMarchi explains the setting's importance.

Lesson by Lindsay DeMarchi, directed by Sofia Pashaei.

This video made possible in collaboration with Brilliant
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Keep Learning
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View full lesson: https://ed.ted.com/lessons/wha....t-happens-if-you-don
Dig deeper with additional resources: https://ed.ted.com/lessons/wha....t-happens-if-you-don#digdeeper

Animator's website: https://www.instagram.com/sofiapashaei
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