Science
Why shaving dulls even sharpest of razors – Mirage News
Human hair is 50 times softer than steel, yet it can chip away a razor’s edge, a new study shows. …
Human hair is 50 times softer than steel, yet it can chip away a razor’s edge, a new study shows.
Engineers at MIT have studied the simple act of shaving up close, observing how a razor blade can be damaged as it cuts human hair – a material that is 50 times softer than the blade itself.
Credit: Mary Elizabeth Wagner
Razors, scalpels, and knives are commonly made from stainless steel, honed to a razor-sharp edge and coated with even harder materials such as diamond-like carbon. However, knive…
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