Why is it easier to pierce something with a needle than an alpin ?

Why is it easier to pierce something with a needle than an alpin ?
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1 Answer

Answer :

The tip of the needle is much sharper than the alpin. That is, the area at the tip of the needle is less than the area at the tip of the alpine. Therefore, applying equal force to both when piercing causes more pressure on the tip of the needle than on the alpin. For this reason, it is easier to pierce something with a needle than an alpin.
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