A team of Japanese high-school students recently won a regional innovation competition with a high-tech device that divides cake and pizza into equal portions every single time.

It’s a problem as old as the world – cutting a round treat into more than two equal parts. You either end up with portions that are not exactly the same size, or you’re left with a smaller extra slice that everyone has their eye on. Well, thanks to the ingenuity of a group of Japanese students from Kundong High School in Japan’s Oita Prefecture, dividing a cake or a pizza into perfectly equal portions need no longer be an issue. They have created a high-tech device that calculates the angle at which the tasty treat needs to be cut, depending on the number of necessary slices.

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Researchers in China claim to have developed an advanced AI that is reportedly capable of identifying crimes and filing charges against those suspected of committing them.

There is no denying that advancements in artificial intelligence are being made at breakneck speeds and that many of us will one day lose our jobs to a tireless machine, but I doubt anyone imagined prosecutors would find their jobs threatened by machines anytime soon. And yet, if Chinese researchers are to be believed, there is already an AI system that can replace human prosecutors “to a certain extent” and file a charge with over 97 percent accuracy, based on a description of a suspected criminal case.

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Japan recently unveiled the world’s first Dual-Mode Vehicle (DMV), a contraption that runs both on roads, like a bus, and on rails, like a train.

The unique bus-train hybrid was unveiled last month, in the town of Kaiyo, Japan’s Tokushima Prefecture. The mini-bus-like contraption didn’t win anyone over with its looks, but it definitely made an impression in terms of practicality. It runs with normal rubber tires on the road, but when it needs to switch to train mode, a pair of metal wheels drop down from the vehicle’s underbelly. The front tires are lifted off of the track, while the rear wheels stay down to propel the vehicle. Switching between road and train modes takes only about 15 seconds.

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A Japanese professor has created a prototype lickable TV screen that can reportedly imitate the taste of various foods.

Dubbed Taste the TV (TTTV), the prototype was developed by Homei Miyashita, a professor at the prestigious Meiji University in Japan, as a step towards a true multisensory viewing experience. The Intriguing device uses a carousel of 10 flavor canisters that are sprayed in combination to create the taste of a particular food. The cocktail then rolls onto hygienic film over a flat TV screen, and the viewer can sample it. Miyashita believes that this technology can help people connect and interact even over long distances.

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When it comes to telling when someone is lying, we currently have very few options, but a team of Israeli researchers claims to have come up with something better than anything we’ve seen before.

Using stickers printed on soft surfaces containing electrodes that monitor and measure the activity of muscles and nerves, a team of researchers led by Prof. Dino Levy from Tel Aviv University, discovered that some people involuntarily activate muscles in their cheeks and eyebrows when they lie. No sensors had been able to measure these subtle muscle contractions before, but the innovative ones invented by Prof. Yael Hanein and sold by Israeli company X-trodes proved sensitive enough. Tests revealed a 73% success rate of lie identification, better than any existing technology.

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A Polish robotics engineer recently posted a series of intriguing videos of what looks like a dextrous android arm powered by synthetic muscles.

Łukasz Koźlik, who goes under the moniker Automaton Robotics online, is a talented robotics engineer from Poland who has spent the last few years creating an incredible synthetic muscle arm that moves eerily like a human one. A firm believer in the idea that muscle mimicry is the key to fast, efficient, and affordable robots, Łukasz has been building on the concept of McKibben muscle, or pneumatic artificial muscles, creating a synthetic muscular system that allows robots to move their fingers and palms in a similar way to humans.

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According to a recently published scientific paper, a team of researchers has developed a wood processing technique that makes the material 23 times harder, making it possible to create sharp wooden knives and nails.

Material scientists at the University of Maryland have reportedly developed a type of hardened wood that can be used as a sustainable alternative to materials like steel and ceramics. To demonstrate the toughness of their chemically-treated wood, the team created a knife that is allegedly nearly three times sharper than a stainless-steel dinner table knife, as well as a wooden nail that can be hammered through wood without sustaining any damage, and that isn’t affected by rust.

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If you’re looking for an unusual and extremely expensive way of dealing with small pests, like cockroaches, may we recommend the world’s smallest working revolver?

The Swiss Mini Gun holds the Guinness World Record for the smallest functioning revolver in the world. It measures 5.5 cm long, 3.5 cm tall and 1 cm wide, weighing only 19.8g. It’s so easy to conceal that countries like the United States and the United Kingdom have made the Swiss Mini Gun illegal to import. But while its reduced size may be unusual, this tiny firearm has all the same features as a normal-sized double-action revolver. Its manufacturing was only possible by employing techniques used in the Swiss watchmaking and jewelry industries.

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Gijs Schalkx, a Dutch inventor and engineering student, modified his motorcycle to run on methane harvested from roadside bogs and ponds.

Aptly named Sloot Motor (sloot means ‘ditch’ in Dutch), Gijs Schalkx’s ingenious vehicle features a modified Honda GX160 motorcycle engine, with a hole into the airbox, through which it receives the methane. The bright inventor than hooks a balloon filled with methane to the hole, which acts as the fuel tank. The engine still starts with gasoline, but once it starts, it uses the methane to keep going. But what truly makes Gijs’ project special is the fact that he manually harvests the methane himself from roadside swamps and ponds, a labor that takes approximately eight hours. The methane only lasts 12 miles at a top speed of 27mph.

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A team of Japanese researchers recently unveiled a weight-shifting contraption that attaches to a glass, making it feel heavier or lighter than it actually is, thus altering the drinker’s perception of the beverages they are consuming.

It has long been known that we consume foods and drinks with a number of senses, not just our taste buds. There is a reason why chefs go through the trouble of developing eye-catching plating techniques, or why specialty cafes rely on the scent of freshly ground coffee to attract patrons. But did you know that the weight of the glass can influence the drinker’s perception of the beverage they are drinking. A team of scientists at the University of Tokyo proved this with the help of an ingenious device that changes the weight of the glass depending on the position it is in.

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DentalSlim Diet Control is a controversial weight loss device designed to allow wearers to open their mouths only about 2mm, thus making them unable to chew while making breathing and speaking possible.

Developed by scientists at University of Otago, in New Zealand, the DentalSlim Diet Control is an intra-oral device that can be attached to the wearer’s upper and lower back teeth by a dental professional. It features unique custom-manufactured locking bolts powered by magnets, which, when activated, only allow a mouth opening of about 2 mm, restricting the wearer to a liquid diet, while allowing them to breathe and speak normally. Apparently, the developers of the DentalSlim Diet Control believe that it can play a role in the fight against the global obesity epidemic.

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Described as a “forced inspiratory suction and swallow tool”, HiccAway is essentially a special type of plastic straw scientifically designed to almost instantly cure hiccups. According to a new study, the L-shaped tool works in 92% of cases.

From holding your breath and drinking water, to jump scares and anti-hiccup lollypops, there is no shortage of hiccup cures in the world, which only emphasizes how pesky of a problem it can be. Unfortunately, few, if any have a proven track record when it comes to efficiency, but, luckily, we now have a scientific solution that promises to end those annoying hiccups in over 90% percent of cases. It’s called HiccAway and it looks like a simple L-shaped piece of plastic, but there’s a lot more to it than meets the eye.

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North Carolina-based start-up BIOMILQ recently announced that it has successfully created cell-cultured human milk from mammary cells, in a laboratory.

In the age of Impossible Burgers and 3D-printed meatless steaks, human breast milk made in the lab instead of inside a woman’s breast really doesn’t seem that strange, honestly. The breakthrough announced by BIOMILK earlier this month really has the potential to disrupt the infant and baby industry as well as impact the environment, as over 10 percent of dairy today goes towards making baby formula. How the world reacts to lab-make breastmilk, on the other hand, is another matter.

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After losing his balance and falling off his bicycle, a bright Chinese engineer dedicated his spare time to designing and building a bike that not only self-balances, but also detects and avoids obstacles.

I never learned how to ride a bicycle, and I always wondered how people managed to keep their balance on those two thin wheels, but thanks to the efforts of Zhi Hui Jun, I may never have to. The talented engineer was fascinated by the self-driving bicycle built by scientists at Beijing Tsinghua University back in 2019, and after suffering a bicycle accident that left him with minor injuries to his face, the young engineer decided to build his own self-balancing bicycle.

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If you feel like you’ve run out of body parts to accessorize, you may want to check out “Mundstück” a line of chin jewelry designed by German company MYL Berlin.

As you can see in the photos, Mundstück (Mouthpiece) is a piece of metal designed to be worn on the chin. Only it doesn’t require any piercing, instead it attaches to the inside of the wearer’s lower lip via two blunt hooks. It’s apparently quite comfortable to wear, doesn’t impede the wearer’s speech at all, and can even be worn when eating. And best of all, it helps you stand out, which is why anyone would wear something like this in the first place, isn’t it?

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