Knives with an Obsidian blade are considered the sharpest in the world, but this material is not fit for making kitchen knives as they're extremely coarse and brittle.
Since obsidian will fracture down to a single atom, it is claimed to have a cutting edge five hundred times sharper than the sharpest steel blade, and under a high magnification microscope an obsidian blade still appears smooth, whereas a steel blade has a saw like edge.
Yes, Obsidian has been subjected to several tests and has been proven to be the sharpest material that can be carved into a blade. The sharpness of an obsidian edge is measured in angstroms, which is a unit of measurement equal to one hundred millionth of a centimeter.
Obsidian -- a type of volcanic glass -- can produce cutting edges many times finer than even the best steel scalpels.
When pressurized to over 100 gigapascals. and force through a 0.05mm nozzle, water transforms into the world's sharpest blade. This incredible water jet cutter. is capable of slicing through fruit, breaking rocks. and even turning iron into a mushy paste.
Global Knives 7-Inch Santoku Knife
Global's powerhouse Santoku is one of the sharpest knives we've ever tested. It's made from a single piece of stainless steel, so the handle is integrated, meaning it won't loosen over time and there's no joint that could trap food.
The sharp edge is slightly superior to its Western counterparts due to its thinner blade finishing. With a thinner blade, less acute honing is possible. For example, a Japanese knife is honed to 15 degrees, whereas a German knife is 20 degrees.
Obsidian is a naturally occurring volcanic glass. It is a hard wearing material and can cut through materials such as marble and bone. It is shown here with a piece of skull trephined with an obsidian knife. The hole produced is 19 mm in diameter.
Under a microscope, an obsidian scalpel divides individual cells in half, while steel scalpel incisions look like they were made by a chainsaw. Even handling an obsidian scalpel takes great care because one can unknowingly cut themselves without pain because the laceration is so fine.
The sharpest object ever made is a tungsten needle that tapers down to the thickness of a single atom.
That title belongs to blades made of obsidian, a kind of volcanic glass that can be crafted into an edge with an edge radius just 3 nanometers across. That's just dozens of atoms thick, making it one of the sharpest objects we know of in terms of edge radius.
No. Obsidian is softer than diamond. It doesn't matter how sharp the obsidian may be, it still cannot cut diamond, because diamond cannot be cut by anything softer than diamond (diamond cutters use diamond to cut diamond).
Obsidian knife blades: overkill for slicing your sandwich. The thinnest blades are three nanometres wide at the edge – 10 times sharper than a razor blade. These are made by flaking a long, thin sliver from a core of obsidian (volcanic glass).
Carbon steel knives are known to keep their sharp edges longer than most and make chopping, slicing and shaving safer and easier.
Carbon steel knives are often the sharpest steel for knives. They're sharper and harder than stainless steel knives. An authentic carbon steel chef's knife is exceptionally sharp, but it is also vulnerable to chipping if not used correctly.
What do water and knives have in common? Well, if fired at a high enough speed, water can cut just like a knife.
"The 748-R Obsidian Blade is guaranteed to be a handy companion for any Shadowrunner looking for a stylish piece of steel (or stone) they can flash at their mark. We here at [insert dystopian weapon seller name] assure the blade of this weapon will cut even the thickest kevlar and up to 1mm thick steel-plates.
Despite being sharper, prismatic obsidian is also considerably more brittle than steel; obsidian blades of the type used on the macuahuitl tended to shatter on impact with other obsidian blades, steel swords or plate armour. Obsidian blades also have difficulty penetrating European mail.
In reality, obsidian is easily broken by human action and can also be worn down by the weather. This would make it a terrible substance from which to build a fortress. While obsidian is not used to build indestructible walls or portals, it is used to make surgical tools.
Many have questioned how the Aztecs could be so willing to undergo the pain of cutting themselves but it's now known that a fresh obsidian blade is so sharp that the cut is barely felt and the blade approaches molecular thinness.
For a long time, historians have marveled at the amount of ceremonial self-mutilation the Aztecs underwent. Now we find that being cut with obsidian is less painful than you'd think, because it makes such a sharp edge. So obsidian became woven into Aztec worship as well as Aztec function.
Remember, German knives are thicker, more durable and better all-purpose chef knives, while Japanese knives are lightweight and thinner, specialized for precise slicing and chopping. Now you're ready to make a knowledgeable decision and invest in one of the best chef's knives.
Spear-Point Blade
Spear-point blades are symmetrical with a point that's in line with the center of the knife. This shape is stronger than the similar needle-point and is similarly adept at thrusting. A spear point can have either one or two sharp edges.
A maguro bōchō (Japanese: 鮪包丁, lit. "tuna knife"), also known as a maguro kiri bōchō (鮪切り包丁, lit.