Transport
Why escalator handrails never quite match the steps
HERE’S THE INTERESTING PART
It’s not broken, it’s just designed to annoy you into staying alert. The rubber handrail loops around a different set of pulleys than the heavy metal stairs, making it impossible to sync them perfectly. Engineers actually prefer it this way, as the slight speed differential forces you to continually adjust your grip, keeping you from zoning out and falling over.
One discovery leads to another.
Keep exploring facts in this topic.
Transport →
