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WHYWhy does…? · #24EP.246 · 24 s

Why does…? #24: why do planes ask for airplane mode?

Cover of the lesson: Why does…? #24: why do planes ask for airplane mode?Coming to YouTube soon
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// WHAT YOU WILL LEARN

Mostly caution: many phones searching for towers at full power can make a buzz in pilots' headsets; modern planes are well shielded.

// LESSON NOTES

Why do planes ask for airplane mode? ✈️📱

📶 Up high there's no good signal, so your phone hunts for a tower — at full power.
🗼 From the sky it can reach dozens of towers at once, and hundreds of phones on board do it together.
🔊 That search can make a "bzzt-bzzt" buzz — the same one you hear near a speaker — and it can leak into pilots' headsets.
🤔 So can one phone bring a plane down?
✅ No — that has never been proven. Planes are shielded and tested.
🛡️ It's caution. Many flights now allow Wi-Fi and Bluetooth with airplane mode on. Always follow the crew!

Read the voiceover (transcript)
  1. Why do planes ask for airplane mode?
  2. Up high, your phone hunts for a tower at full power.
  3. It can reach dozens of towers, and hundreds of phones do it together.
  4. That buzz can leak into pilots' headsets, like near a speaker.
  5. Can one phone bring a plane down?
  6. No! Never proven.
  7. It's caution. Many flights allow Wi-Fi now.
  8. Next: why power lines crackle in the rain. Follow for more!

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