I heard this on the radio today. Apparently razors are dulled not so much by bending the metal as by chipping off of material caused by minuscule imperfections in the metal. The gif of shaving in a scanning electron microscope is neat (I think they used some sort of artificial skin since the hair is that of the scientist and his colleagues).
Unfortunately, there is no practical take-away for us, since the imperfections are microscopic and random. They are applying for a patent for more uniformly-set steel, which offhand seems like a longshot. There was no mention of PTFE coatings or the like, so talk to your dissertation advisor!
NPR segment on disposable razor blades
NPR segment on disposable razor blades
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I am Chris #6. No relation to Nikki.
I am Chris #6. No relation to Nikki.
Re: NPR segment on disposable razor blades
Here's the GIF:
Pity they don't show the edge after the hair falls away, but it looks like there are two dips in the edge.
I wonder it they wetted it to soften it first, or was it bone-dry?
Pity they don't show the edge after the hair falls away, but it looks like there are two dips in the edge.
I wonder it they wetted it to soften it first, or was it bone-dry?
"If this isn't nice, then what is?" - Kurt Vonnegut's Uncle Alex
Re: NPR segment on disposable razor blades
I think it has to be dry and in a vacuum for the electrons to bounce the right way.
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I am Chris #6. No relation to Nikki.
I am Chris #6. No relation to Nikki.