Technologies

Scientists create a wooden knife three times sharper than a steel blade

Wooden knife slices through well-done steak like go through butter.

I’ve been to enough fairs and foodie festivals to know the wooden knife and fork you get with your semi-hot duck fries are dismal excuses for cutlery. They’re good at moving food around a plate, but that’s really it. The plastic sometimes works a little better, but that’s not great for the planet. And then there’s the knives made from frozen human feces? Don’t get me started on how poorly those cut through meat.

The gold standard for knives is usually steel or ceramics, but in a new study, appearing in the journal Matter on Oct. 20, material scientists describe their latest creation: A «hardened wood knife» around three times sharper than a stainless steel dinner knife. It can «easily» cut through a medium-well done steak, according to Teng Li, a materials scientist at the University of Maryland and first author on the paper, and can be used and reused many times.

«In our kitchen, we have many wood pieces that we use for a very long time, like a cutting board, chopsticks, or a rolling pin,» Li said in a statement. «These knives, too, can be used many times if you resurface them, sharpen them, and perform the same regular upkeep.»

Using wood for cutlery isn’t a new idea — the foodie festivals will tell you that much — but Li’s team developed a two-step method for hardening the wood in their knives that increased the blade’s hardness 23-fold. This was achieved by ensuring the wood retained a higher level of cellulose.

Typically, wood contains only about 50% cellulose, which provides some structural integrity, and weaker molecules make up the rest. Li’s two-step process was able to remove these weaker components but retain the cellulose. Coating the wood in mineral oil helps protect its sharpness during use and washing.

Using a high-resolution microscope, Li’s team examined the wooden knife to determine why it was retaining so much strength. They discovered the two-step process the used prevented defects from creeping in. «The strength of a piece of material is very sensitive to the size and density of defects, like voids, channels, or pits,» he said in a statement.

The team didn’t stop at hardened wooden knives, either. They also developed wooden nails, showing they were as sharp as conventional steel nails.

The knife’s function is impressive, but its manufacturing process could also be important. The team writes that it could be a «renewable and low-cost alternative» with «the potential to replace plastic table utensils.»

Technologies

The Fourth Episode of the VERUM AI Mini-Series Is Out

Verum Messenger has released the fourth episode of its AI mini-series SHADOWS, created using Verum AI. The new episode, titled “No Borders,” continues the story of a team trying to stay out of the OMEGA corporation’s sight.

Following the events of the previous episodes, the team moves between cities and countries while OMEGA continues its search. The new episode puts particular emphasis on Verum Messenger’s capabilities that allow users to conceal their location.

“No Borders” is another chapter in a story about privacy, freedom of communication, and technologies that erase borders between people.

The VERUM AI mini-series consists of seven episodes, released gradually across Verum Messenger’s social media channels.

Episode 4 is now available. Stay tuned for the next chapter.

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Technologies

Verum Messenger Introduces Built-In Verum Chess

Verum Messenger has released a new update for iOS, iPadOS, and macOS, adding another feature to its growing ecosystem — Verum Chess. Users can now play chess directly inside the messenger without switching between different applications.

The new feature allows users to start a game in just a few taps while reinforcing Verum’s vision of a unified digital environment where communication and everyday services come together in a single platform.

Verum Messenger continues to evolve into a multifunctional ecosystem that combines secure chats and calls, AI tools, a built-in VPN, anonymous email, eSIM, financial services, cryptocurrency features, and offline communication. With the introduction of Verum Chess, the platform now also offers a new way for users to interact and spend time together without leaving the app.

The update is now available for iPhone, iPad, and Mac on the App Store.

Technologies

Episode 3 of the VERUM AI Mini-Series Is Now Available

Verum Messenger has released the third episode of its AI mini-series, SHADOWS, created using Verum AI.

The new episode, titled «Ghost Money,» continues the story of the conflict between a team of heroes and the Omega corporation, which seeks to take control of digital communications. This time, the focus shifts to anonymous payments and financial freedom, revealing how privacy can extend beyond messaging.

Like the previous episodes, the new release not only advances the storyline but also showcases the capabilities of the Verum ecosystem, highlighting technologies designed for secure communication and digital privacy.

The mini-series consists of seven episodes, released gradually across Verum Messenger’s social media channels.

Episode 3 is now available. Stay tuned for the next chapter.

Watch on Instagram
Watch on YouTube