Is there anyone who can explain this beautiful phenomenon?

[Miyamoto Musashi]

Why do this happen on steel? Apologies in advance for the phone quality image.

 

[M1k3]

Suction and the release of it.

 

[blokey]

Prophecy from God.

 

[MSicardCutlery]

Surface tension of the water+ abrasive size+relatively flat surface?

 

[mengwong]

A geo geek might identify this as an instance of a drainage pattern at the intersection of dendritic and parallel structures (same thing really, just more directional.)

https://en.wikipedia.org/wiki/Drainage_system_(geomorphology)

On land, the structure results from slope and erosion.

At the fluid interface between stone and steel, the dynamics involve capillary action (the suction and surface tension @M1k3 and @msicard mentioned) and the gross separation of the knife moving apart from the stone at an angle.

 

[mengwong]

Prophecy from God.

Sharpening $2/inch
Petramancy $80/reading
Fortunes told, futures divined
Tips and chips repaired
Release the negative energies created by power tools
Luck restored using J-Nats addtn’l $8/inch
NO GLOBALS​

 

[jedy617]

I think this is mazaki

 

[calostro5]

Sharpening $2/inch
Petramancy $80/reading
Fortunes told, futures divined
Tips and chips repaired
Release the negative energies created by power tools
Luck restored using J-Nats addtn’l $8/inch
NO GLOBALS​

What problems with globals?

 

[M1k3]

What problems with globals?

They're Globals and not Shun's.

 

[calostro5]

They're Globals and not Shun's.

People say Global are hard yo sharpen. What else?
Does Shun worth it? Some people say they are overpriced.

 

[M1k3]

People say Global are hard yo sharpen. What else?
Does Shun worth it? Some people say they are overpriced.

I personally dislike the handles and overall ergonomics.

Shun are ok. They're sharpening service a nice add on for the person that's not an enthusiast. But there's other options available in similar price points with better performance.

 

[calostro5]

I personally dislike the handles and overall ergonomics.

Shun are ok. They're sharpening service a nice add on for the person that's not an enthusiast. But there's other options available in similar price points with better performance.

I have no had any Global, so I can't say about the handle.
Some years ago I wanted to have gyuto Global. Today, I don't have any interest in this brand.
But I don't feel iterest in Shun. As you say, there are better choices.
The good point of Shun is that they are relatively easy to find on internet. At least in Spain.

 

[stringer]

Globals are pretty much perfect knives for regifting to someone you aren't close enough to that they will ask you to sharpen it.

 

[Miyamoto Musashi]

Globals are pretty much perfect knives for regifting to someone you aren't close enough to that they will ask you to sharpen it.

5d chess

 

[Rangen]

Shuns and Globals will cut, but you will search in vain for their souls.

 

[Jville]

Bottom line is you should shun Globals, and if you think of getting a Shun you should look around there are better Global options.

 

[blokey]

Shuns aren't that bad, they can be fine thin knives, Global on the other hand is kind sad, their steel is budget level and sharpens like annoying soft stainless.

 

[Benuser]

Shuns aren't that bad, they can be fine thin knives, Global on the other hand is kind sad, their steel is budget level and sharpens like annoying soft stainless.

With large, clustering carbides and the resulting edge instability. Hard to raise a burr, terrible to get rid of it. You believe you've deburred it: ten minutes later you feel a burr that has popped up in another place.

 

[Desert Rat]

Shuns aren't that bad, they can be fine thin knives, Global on the other hand is kind sad, their steel is budget level and sharpens like annoying soft stainless.

My wife has loved her Shun santoku for years. It's perfect and I'm not allowed to thin it. Them grantons or whatever they are called on the side of the blade release potatoes which is prof positive that her knife is superior to all others in the knife block.

 

[Desert Rat]

A geo geek might identify this as an instance of a drainage pattern at the intersection of dendritic and parallel structures (same thing really, just more directional.)

https://en.wikipedia.org/wiki/Drainage_system_(geomorphology)
View attachment 236154

On land, the structure results from slope and erosion.

At the fluid interface between stone and steel, the dynamics involve capillary action (the suction and surface tension @M1k3 and @msicard mentioned) and the gross separation of the knife moving apart from the stone at an angle.

Dudes been holding out on us, we have a genius on the forms...

 

[blokey]

My wife has loved her Shun santoku for years. It's perfect and I'm not allowed to thin it. Them grantons or whatever they are called on the side of the blade release potatoes which is prof positive that her knife is superior to all others in the knife block.

Seems Glestain would be a perfect gift for her.
https://japanesechefsknife.com/collections/glestain/products/glestain-santoku-knife

 

[Bolek]

With large, clustering carbides and the resulting edge instability. Hard to raise a burr, terrible to get rid of it. You believe you've deburred it: ten minutes later you feel a burr that has popped up in another place.

Yesterday I sharpened my wife Global petty on a Practical Sharpening vitrified diamond 2000 stone. I took me 2 min to find where I put the stone, put some alcohol solution (for automotive windows) on it, raise the bur and get reed of it (the bur not the Global). Two recommandations for Globals sharpening :

1. Go diamonds;
2. Do not try to improve it; it only works as is.