In the modern world, safety is often measured in the grand and the complex—airbags that deploy in milliseconds, high-strength steel cages, and sophisticated sensors that predict a collision before the driver even touches the brakes. Yet, within the cabin of every vehicle, there exists a masterpiece of subtle engineering that we interact with every single day, often without a conscious thought. The seat belt is the most fundamental and effective safety device ever devised for automotive travel, and while its primary components—the webbing, the retractor, and the buckle—are well-understood, there is a tiny, unassuming feature that frequently sparks curiosity. It...
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