Why Do Escalator Steps Have Teeth?

Name: Why Do Escalator Steps Have Teeth?
Uploaded: 2025-09-30 00:00:00.000Z
Duration: 22 min 18 s
Channel: Veritasium
Description: Why Do Escalator Steps Have Teeth?

Veritasium★ IntelectualCiencia

16,0 M vistas22:1830 sep 2025

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