Subject: Why do razor blades go blunt?
Date: Wed Apr 11 19:54:37 2001
Posted by Nicola
Grade level: 10-12
City: Dorking State/Province: No state entered.
Area of science: Engineering
If hair measures approx. 2-3 on the Mohs scale and Tungsten steel approx.7-8 on
the same scale, why don't razor blades stay sharp permanently? As we know they
don't, so what is the cause of their edge losing its sharpness?
Re: Why do razor blades go blunt?
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