What is the sharpest knife in the world?

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).
Takedown request   |   View complete answer on sciencefocus.com


What is the sharpest blade ever made?

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.
Takedown request   |   View complete answer on totalknifecare.com.au


How sharp is obsidian knife?

Cutting edge

Obsidian – a type of volcanic glass – can produce cutting edges many times finer than even the best steel scalpels. At 30 angstroms – a unit of measurement equal to one hundred millionth of a centimeter – an obsidian scalpel can rival diamond in the fineness of its edge.
Takedown request   |   View complete answer on cnn.com


What knife steel has the sharpest edge?

Carbon steel blades are among the sharpest blades available and are much easier to sharpen than stainless steel blades. The lack of chromium in the blades means that it is highly susceptible to rust and corrosion and requires careful cleaning after each use.
Takedown request   |   View complete answer on knife-depot.com


What is the sharpest metal on earth?

Impact strength determines how much energy a metal can absorb through impact without shattering or fracturing. Tungsten, which is Swedish for "heavy stone," is the strongest metal in the world.
Takedown request   |   View complete answer on thyssenkrupp-materials.co.uk


TESTING The Sharpest Knife In The World



Why are there no titanium swords?

Titanium is not a good material for swords or any blades. Steel is far better. Titanium cannot be heat treated sufficiently to gain a good edge and will not retain edge.
Takedown request   |   View complete answer on finishing.com


Can obsidian cut through DNA?

They are used are used in modern medicine because the sharp blades create incisions which heal faster.
Takedown request   |   View complete answer on reddit.com


Is diamond sharper than obsidian?

Surprisingly, the edge of a piece of obsidian is superior to that of a surgeon's steel scalpel. It is 3 times sharper than diamond and between 500-1000 times sharper than a razor or a surgeon's steel blade resulting in easier incisions and fewer microscopic ragged tissue cuts.
Takedown request   |   View complete answer on myscienceblast.com


Would obsidian make a good sword?

Natural obsidian is a pretty terrible substance to make a durable weapon with, but there are other "obsidian like" materials that could work. "Obsidian like" being glass with impurities...
Takedown request   |   View complete answer on worldbuilding.stackexchange.com


What is sharper than a razor?

Actually, the proven sharpest object is freshly broken chert or obsidian. The edge has been shown to be about one molecule thick.
Takedown request   |   View complete answer on thenakedscientists.com


What is the best knife in the world?

12 Best Kitchen Knives, According to Cooking Experts
  • Best Overall Chef's Knife: Wusthof Classic 8-Inch Chef's Knife.
  • Best Value Chef's Knife: J.A. Henckels Classic 8-Inch Chef's Knife.
  • Sharpest Chef's Knife: Global Santoku 7-Inch Chef's Knife.
  • Best Multi-Purpose Chef's Knife: Misen 8-Inch Chef's Knife.
Takedown request   |   View complete answer on goodhousekeeping.com


Can a knife be too sharp?

The easy answer to this is no. Kitchen knives are meant to be sharp and the sharper they are, the better they work. Of course, if you are brand new in the kitchen, an incredibly sharp knife could lead to serious injury.
Takedown request   |   View complete answer on schmidtbrothers.com


Is Damascus steel the sharpest?

A well-made Damascus blade will retain its sharpness for longer than most production quality blades, but if the goal is to use the best performing blade steel, you may find it elsewhere. In saying that, quality is largely determined by how much it costs. True 'name brand' Damascus steel is of the highest quality.
Takedown request   |   View complete answer on houseofknives.com.au


Is katana the sharpest sword?

While not the sharpest sword on the list, the katana's design made it an extremely effective blade. Its combination of flexibility, durability, and sharpness is unmatched by other swords throughout history. The katana was used in combat until the end of World War II.
Takedown request   |   View complete answer on workingtheflame.com


What is the sharpest weapon in the world?

Damascus swords — sharp enough to slice a falling piece of silk in half, strong enough to split stones without dulling — owe their legendary qualities to carbon nanotubes, says chemist and Nobel laureate Robert Curl.
Takedown request   |   View complete answer on wired.com


Can obsidian cut you?

Due to this, when used in the medical field, incisions made with the blade heal faster with less scarring.
Takedown request   |   View complete answer on reddit.com


Is green obsidian real?

Green Obsidian is one of Obsidian Rocks that contain impurities as Pure obsidian usually appears to be dark, although the color may vary depending on the presence of impurities. Iron and other elements of transition can give a dark brown to black color to the obsidian.
Takedown request   |   View complete answer on geologypage.com


Is obsidian rare?

Occurrence of Obsidian

It is confined to areas of geologically recent volcanic activity. Obsidian older than a few million years is rare because the glassy rock is rapidly destroyed or altered by weathering, heat, or other processes.
Takedown request   |   View complete answer on geology.com


Is obsidian used in eye surgery?

This month, Hardenbergh plans to begin using obsidian blades in a series of eye operations, primarily cataract procedures. Obsidian is a relatively rare product of volcanic eruptions. "It requires very specific conditions to form," Sheets says.
Takedown request   |   View complete answer on washingtonpost.com


Is a monomolecular blade possible?

Monomolecular blades are a fairly common throughout the setting. This includes combat knives, swords, chainsword, some types of ammunition, etc.
Takedown request   |   View complete answer on tvtropes.org


Is it possible to make a monomolecular blade?

These blades are even being considered for use in shaving razors, since a single blade would last for years instead of weeks, and would cut better and more smoothly. Neither of the technologies I have mentioned are truly monomolecular, but they show that the creation of such blades in the future may be possible.
Takedown request   |   View complete answer on ottawalife.com


What is the strongest metal for a sword?

What is the Strongest Metal for a Sword?
  • One of the best and strongest metals to use is 1095 high carbon steel.
  • 1095 high carbon steel is strong and durable.
  • 1095 high carbon steel is highly susceptible to rust.
Takedown request   |   View complete answer on survivalfreedom.com


Would aluminum make a good sword?

Aluminum practice swords are often preferred over traditional steel swords for beginners. Because of its widespread availability and 100% recyclable properties, aluminum swords are cheaper than steel swords. Aluminum is lightweight, with a lower weight by volume than most other metals.
Takedown request   |   View complete answer on martialartswords.com


Does titanium hold an edge?

While harder, titanium is more brittle than steel. This means it is more likely to break. A titanium knife will not be good for prying or anything that will put sheer force on the blade. It also does not keep an edge as well as steel and will need to be sharpened more often.
Takedown request   |   View complete answer on offgridknives.com