A steel razor blade can get dull surprisingly quickly when cutting something as soft as hair, and now researchers have gotten their first up-close look at how a close shave actually damages an ...

IT TOOK a leisurely 70 years after King Gillette invented the safety razor for someone to come up with the idea that twin blades might be—or, at least sell—better. Since then, the pace of change has ...

Razors may start sharp, but even though they only cut soft hair, they become dull surprisingly quickly. Now we know why blades that cut soft materials lose their edges so easily, which should help ...