Japanese scientists have found that when meeting with the owner after a long separation, dogs cry with joy.

Veterinarians spoke about the study in the journal Current Biology. The volume of lacrimal fluid was measured before and after meeting with the owner. The conclusion turned out to be unequivocal - dogs really cry with joy.

China has created an artificial neuron of the human brain.

A neuron was created from a graphene sensor and carbon tubes, capable of both receiving and sending dopamine signals. We are one step closer to full-fledged simulations of brain activity.

British hospitals are testing smart glasses - they scan the patient and make an appointment with the doctor.

In two regions of the UK, nurses have begun testing thermal smart glasses. They scan the patient, assess the condition of his wounds and make an appointment with the doctor. Video consultations can be sent in real time to a highly specialized specialist. The glasses are able to execute voice commands, lay the best route to the patient's home and make mailing lists. The smart gadget should save the time of family doctors and make the work of nurses easier - they spend half a day solely on filling out documents and working at a computer.

Church of worshipers of hallucinogenic mushrooms sued the police for the confiscation of drugs.

Zide Door is a branch of the Ambrosia Church that advocates "safe access" to naturally occurring psychoactive substances for "direct communication with God". Zide Door has 60 thousand parishioners. They donate five dollars a month to the church and make contributions to its fund in exchange for the "sacrament" - the use of cannabis and mushrooms. In the police lawsuit, Zide Door cites the Religious Freedom Restoration Act of 1993. He allowed some US religious groups to use drugs for ritual purposes.

Singapore lifts ban on same-sex sex.

Prime Minister Lee Hsien Loong said decriminalizing homosexuality would help bring the country's regulations in line with modern social norms. The politician believes that the majority of the population will support the amendment. At the same time, he promised to defend the definition of marriage as “the union between a man and a woman”, since in many ways Singapore remains a traditional society.

Engineer James Brown has created a mini-computer out of Lego.

At first, Brown wanted to create a mechanical keyboard with screens instead of buttons. In the process, the enthusiast decided to build a computer out of Lego because he was interested in customizing tiny components in a small package. The device is powered by old 9-volt batteries and bricks with electrical contacts that Lego stopped making back in the 90s. This is enough to run the screen and the STM32 microcontroller with a 48 MHz Arm Cortex-M0 processor and 16 KB flash memory. Brown himself wrote the programs for this tiny computer, and also managed to display an image from Doom on it. The displays are hidden behind translucent Lego bricks. He spent $40 on the entire project.

Implant Keys

VivoKey has begun implanting property keys into the hands of those who wish for $400. One of the first was Brandon Dalali, who put the keys to the apartment in his left hand, and his Tesla in his right hand.

Enthusiasts took a 174-megapixel image of the moon.

Almost two years of work and finally presented the result of their hard work. The colors in the photo are real, but with increased saturation. The authors explained that red areas are rich in iron and feldspar, while blue areas indicate the presence of titanium.

In Britain, drivers will not be judged for crashes involving autopilot.

Regulators said that for this it is not even necessary to change the legislation. For all accidents at the moment when the car is on autopilot, the responsibility will be borne by the manufacturer, not the owner of the car.

A startup from Los Angeles has begun creating small houses from plastic waste.

They are cheaply processed, 3D printers are launched and with their help they create residential buildings, the price of which is several times lower than with traditional construction. For example, a small studio can be printed for $25,000.

China decided to create artificial rains to save crops from drought.

The Chinese authorities decided to spray the clouds with chemicals to cause artificial rains - because of the drought in the country, rice crops, which make up 75% of the annual crop, are dying. Plants will also be treated with humectants to limit water evaporation. If artificial rain does not save the Chinese crop, inflation in the US and Europe could rise.

An Israeli startup is going to create personal clones for people for a spare set of organs.

Renewal Bio has shared plans to create realistic synthetic embryos that will be grown in artificial wombs from stem cells (without the use of sperm and eggs). Scientists have already conducted studies on mice. They placed mouse embryos in a mechanical womb and managed to grow them to such an extent that the brain began to emerge and the heart began to beat. Analyzes show that the synthetic versions are about 95% similar to normal mouse embryos, based on the mix of cell types within each.

Scientists have figured out how and when the sun will die.

Experts from the European Space Agency have analyzed new data from the Gaia Optical Space Telescope. Thanks to them, scientists were able to determine how the Sun will develop in the future. According to calculations, our star is already 4.57 billion years old, and in general it is still stable. However, eventually the star will die - the process will begin when the core runs out of hydrogen. The merger process will begin, which will turn the Sun into a red giant star and lower the surface temperature by dozens of times. In this state, it will last another thousand billion years, until it turns into a dim white dwarf. But it is unlikely that a reasonable form of life on Earth will catch this - the brightness of the Sun increases by about 10% every billion years, which entails an increase in temperature. Such changes will make our planet uninhabitable long before the end of the solar system.

Drop has released a keyboard dedicated to Tolkien's Lord of the Rings.

Especially for fans of the writer's work, a keyboard appeared on sale in Sindarin - the Elvish language and Kirt - the Dwarf language. The cost of the keyboard is $170. The device is wired and mechanical, with backlight. It connects to a computer via a USB-C interface.

Scientists have presented a new contraceptive for men, tested on mice and 99% effective.

Hormonal, without any side effects, mice in the experiment, it remained sterile for 4-6 weeks. After a long search, scientists have found an experimental compound, GPHR-529, that blocks a protein responsible for binding to a form of vitamin A in cells. By selectively blocking this protein, sterility can be increased without causing any side effects. In mice (males) from the experiment, there was a sharp decrease in spermatozoa, in fact, they became infertile in 99% of cases. And only 4-6 weeks after stopping the drug, the males ceased to be infertile.

Residents of an Australian town are terrorized by gangs of kangaroos.

The local environment department said they counted between 60 and 80 kangaroos in the city and nearby forests. Over the past 12 months, seven cases of kangaroo attacks have been recorded in the state, while Maarum has an unusual situation: females, not males, are behind most of the attacks. According to one of the local residents, over the past few years, it has become more rainy in the area, which favors the growth of grass. The abundance of food attracted kangaroos.

The morning ritual of smokers has a scientific justification.

Scientists have found that chemicals found in coffee minimize the damage that smoking causes to the brain's nicotinic receptors. Thus, ironically, after coffee, you want to smoke less. But smokers do this subconsciously, feeling that the receptors will forgive the cigarette.

Startup Mobile Pixels took to Kickstarter with a dual foldable monitor project that became an instant hit.

There are two models - Geminos and Geminos X. Both screens are 24 inches, and the resolution depends on the version: 1080p in the younger and 1440p in the older one. The frequency is also different: 60 and 75 hertz, respectively. In addition to the screens themselves, the monitor has a webcam, speakers, and several ports, including USB-C. For successful financing, the developers requested 25 thousand dollars, at the moment 1.7 million dollars have been collected. The price of the junior and senior versions on Kickstarter is $500 and $650, respectively, and after the launch of production and regular sales, the cost will double.

Apple has created a NeuMan neural network that can create a realistic deepfake based on a 10-second video.

NeuMan recognizes the background and person in the video, and then the algorithm synthesizes a new video with the same background and person, but which is already performing other actions. According to the developers, this technology is necessary to improve the AR reality.

Dodge showed the concept of an electric muscle car.

It provides an acoustic system to simulate the roar of the motor. The company's press release provided few details on the vehicle's technical specifications. It is only known that the new muscle car was equipped with a proprietary 800-volt all-wheel drive power plant with a capacity of 700 horsepower. Inside, a curved dashboard, a multimedia screen and an additional projection display were installed.