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Health & Fitness News

The Times of India

Health & Fitness / The Times of India

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Ever noticed the gap before zero on a ruler? Here is why it exists

A seemingly simple ruler hides a clever design: the gap before the zero mark. This isn't an oversight but a deliberate feature enhancing precision and durability. It protects the vulnerable edge from wear and tear, ensuring a reliable reference point. This design principle, also seen in other precision tools, aids manufacturing and even teaches proper measurement techniques.

7 May 2026 12:25 am