Eli5: How was the first diamond cutter created?

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Curious cus I thought the only thing that can cut diamonds is another diamond.

In: Technology

6 Answers

Anonymous 0 Comments

By crushing up other diamonds to make diamond sand paper. Being hard doesn’t mean it is harder to break. Porcelain is very hard but when dropped it will break apart.

Diamonds do have high tensile strength to resist being broken, but it is nowhere near as high as its hardness, so steal can break it.

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