There's two basic types of quality chef's knives: Japanese, very hard steel blades, and German high quality steel blades. Handle designs are simply a matter of individual preference. The Japanese steel is more difficult to sharpen, but once sharpened, it maintains its edge longer. These blades are usually sharpened with a razor edge, a 16-1/2° angle on either side of the edge. The German steel blades are usually sharpened with a 22-1/2° angle on either side of the edge. Both knives can be very useful in the kitchen. The German knives might be described as more rugged than the Japanese knives...not always the best for cutting sushi, for instance. The Japanese knives typically have thinner and more brittle blades. I own both and I love both. I simply use one for general kitchen work, and the other for delicate, close and precise work.
The steel blade of a knife will hold a sharp cutting edge.
An instrument with a thin bade made of steel and having a sharp edge for cutting? This is a knife. Care must be taken when handling said knife.
The Aztec sacrificial knife was typically made of flint or obsidian, which were sharp volcanic stones known for their ability to hold a sharp edge. These materials were valued for their sharpness and cutting capabilities in ceremonial rituals.
A sharp knife cuts much better than a blunt knife. A sharp knife is less likely skid off and cause an accidental wound.
By being sharpened by cutting bits of wood off of it using a knife
Knife edge: Knife edge scissors are made with the balance beam or lever arm fulcrum in the form of a hardened steel "knife edge' wedge; used to minimize friction. http://www.marthastewart.com/good-things/knife-edge-pillow
Iron or steel will hold a very sharp edge, and make an efficient wood cutting/chopping tool.
Anything that's called 'cutting-edge' is something which is at the forefront of current technology. What's cutting-edge today is unlikely to be cutting-edge soon because technological developments will have made it out of date.
I think this thins make an knife good quiliti knife Unique open surface blade Lifetime sharp serrated edge Produces a perfect slice Great for fruits and vegetables Quality crafted stainless steel blade
That would be a wedge as the blade is sharpened to an edge. It could also arguably be a lever, the chopping board being a fulcrum.
The edge of a knife is very thin, often a few molecules thick. The thin edge will then apply very high force per unit of area, splitting the material being cut, separating the molecules of the material being cut.
Diamond blades are made by attaching small diamond particles to a metal core through a bonding process. The exposed diamond particles on the edge of the blade are what make it sharp and effective for cutting through hard materials like concrete and stone. Diamond blades are specifically designed to use the hardness and abrasiveness of diamonds to create a cutting edge.