A team of engineers at MIT led by C. Cem Tasan has discovered why steel razor blades go dull even when cutting hair that's 50 times softer than them. Using an electron microscopic, they found that ...

Close shave: electron microscope image of a razorblade cutting human hair. (Courtesy: Gianluca Roscioli/Tasan Group/MIT) New insights into why a hard steel razor blade is dulled by cutting soft hairs ...

Zafirro is known for producing the world’s most expensive razor, a $100,000 shaver with an iridium handle and sapphire blades. Since its debut in 2011, the cost of producing sapphire has plummeted, ...

One of the great mysteries of the world is why exactly razor blades cost so much. They never seem to last long as after a few shaves there so dull they basically rip the hair out instead of cutting it ...