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Why is a Guillotine blade diagonal?
- eternityforest 2y agoDoes being pushed sideways matter? If the knowArt test was on a small scale it might not have had the inertia of the full size.
- userbinator 2y agoI thought this would be about paper guillotines.
- deleted 2y ago[deleted]
- dylan604 2y agowhat paper guillotine has a diagonal blade? all of the ones I've ever used were curved
- ce4 2y agoBut thats because the cutting angle changes when depressing the lever. The curvature is meant to counter that to some extent.
- njb311 2y agoA printer’s guillotine that cuts hundreds of sheets at once has a diagonal blade.
- deleted 2y ago[deleted]
- userbinator 2y agoThe point is that they cut at an angle.
- khazhoux 2y agoWhat should we take away from this comment?
- rolph 2y agothis creates shear, lengthens the amount of blade edge, and directs force to a smaller contact surface than a perpedicular edge. [But the story goes that the real reason the blade is diagonal is that the king suggested it might help with people with fat necks] thus proclaimation was the lead contributor.
- beefnugs 2y agoCause someone thought the sound of SHIIINK was some terrifying original sound as opposed to clever chopping carrot
- hinkley 2y agoGuillotine proposed his device as a more humane alternative to traditional modes of execution like being drawn and quartered. And contrary to legend he did not die by his own device.
- themaninthedark 2y agoWithout reading the article, my guess would be because it allows the force to be focused on a smaller area at the start of the cut.
- blackeyeblitzar 2y agoWouldn’t everything that is a blade be designed this way then?
- Spooky23 2y agoThey are. Except for Japanese style knives, all knives have a slant. The Japanese knives are only sharpened with a single edge, however. So they in a profile view look like a tiny guillotine.
- deleted 2y ago[deleted]
- salomonk_mur 2y agoAlmost everything that is a blade is designed to be curved or slanted, yes.
- evilduck 2y agoMany are. Scissors, drill bits, even the way most people use a kitchen knife, they put as much force onto as small of area as possible. At certain differences in scale it won't matter (razor blade vs a single hair), but how a cut is performed is definitely part of the design process.
- tengbretson 2y agoLike a mandolin slicer?
- tomjakubowski 2y agochopping vegetables with a chef's knife applies the same principle
- t-3 2y ago
- im3w1l 2y agoLess likely to bounce off a bone would be my guess? A diagonal blade will push obstacles out of the way.
- black_13 2y ago[dead]
- samstave 2y agoSame Reason a Katana is curved, while the temp causes this, it augments the blades cutting angle, length, draw.
- lupusreal 2y agoI'm sure diagonal blades are more practical, but style must be part of it right? It was a theatrical method of execution after all, done for crowds.
- d--b 2y agoWhich begs the question: why wasn’t it shaped like a ^
- montroser 2y agoIt'd be tough to keep that inside corner sharp...
- mc32 2y agoTwo overlapping triangles would work. A little work in disassembly reassembly, but not much.
- the_gipsy 2y agoJust make it a V.
- ok_dad 2y agoYou then have to ensure the flat side of the blade pair meets without a gap. The gap, at least when I’m sharpening wood planes with a chip breaker, allows material to get stuck which will prevent a good cut. I would imagine getting some spine caught in a gap there would cause issues. With a single blade you don’t need to worry about the back flatness as much.
- deleted 2y ago[deleted]
- almostgotcaught 2y ago"to beg the question" means "to dodge the question". You mean "prompts the question".
- bee_rider 2y agoDictionaries now seem to give both the definitions. Such is the fate of us victims of the dynamic English language.
- yumraj 2y agoSlant razors, like the Merkur slant, are also slightly angled for an easier shave. I have one and can vouch for it.
- tithe 2y agoOne colloquial term for the guillotine was (is?) "le rasoir national" = "the national razor." Other colorful terms include "the regretful climb", "the silence mill", "Capet's necktie", "the patriotic shortener", "half-moon", "timbers of justice", and "Charlot's rocking-chair". https://en.wikipedia.org/wiki/Guillotine#Names_for_the_guillotine https://en.wikipedia.org/wiki/Guillotine#Names_for_the_guill...
- zikduruqe 2y agoRun that with a Feather blade, and buddy, you will be facesturbating all day.
- yumraj 2y agoI’ve used Feather, worked out OK for me. I have a couple of other blades I prefer though.
- valeg 2y agoReminded me of this "La Révolution française" scene https://youtu.be/YPiiAHSi_48?t=5236 https://youtu.be/YPiiAHSi_48?t=5236
- readthenotes1 2y agoUnreadable in dark mode :(
- skribanto 2y agoLooks fine to me
- VonGallifrey 2y agoIt is white text on black background by default. Do you have some browser plugins that mess with the website content?
- nabla9 2y agoOne explanation is missing: the angle of the edge. If the blade edge has been sharpened to 20 degree angle, it has the same 20 degree cutting angle when used diagonally. The effective cutting angle decreases in the direction of the cut when you rotate it. The smaller the angle, the sharper the knife.
- cft 2y agoMainly because the slicing motion separates fibers in the fresh, it's more effective than blunt force. Same with a knife. It's interesting, however, that this post is much higher on the front page than the post about Durov's arrest by the French ever was, despite having 1/10th the number of comments during a similar time period.
- Giorgi 2y agoQuite the fascinating story, I dig up a bit more: https://archive.org/details/memoirsofsansons00sansuoft/page/260/mode/2up https://archive.org/details/memoirsofsansons00sansuoft/page/...
- dogmatism 2y agoIt's too soon to say