Importance of coffee in Yemen and Arabia.

Initially, coffee was considered in Yemen and Arabia as a miraculous medicine and was consumed only on the advice of a doctor. Many viewed it as a brain tonic or as a way to stimulate religious visions.

About tigers.

The skin of tigers is actually striped, just like their fur. In addition, no two fur colors are the same.

Zipline taught drones to hear planes and avoid collisions with them.

The company has developed an acoustic system for detecting other aircraft for drones. It uses microphones and allows you to detect other devices within a radius of two kilometers, as well as automatically rebuild the flight path to avoid a collision.

The Stargazer plane will take passengers from Japan to the United States in just an hour.

Aerospace startup Venus Aerospace presented a visualization of its future Stargazer hypersonic aircraft. Its advertised speed is about Mach 9, which allows the crew and a small number of passengers to get from Tokyo to Los Angeles in just one hour. Stargazer will take off using engines, but when it reaches the edge of space at an altitude of 52 kilometers, it will switch to "rocket mode". The plane is designed to carry 12 passengers, and its speed exceeds 11,025 km/h, which is almost 9 times the speed of sound.

In Saudi Arabia, they decided to invest a billion dollars annually in the development of life extension technology.

The Saudi royal family has decided to invest a billion dollars annually in the Hevolution Foundation, a non-profit organization. She is looking for methods to combat aging and develops life extension technologies. The royal family's money will make the Hevolution Foundation the world's largest funder of aging research. The organization will distribute grants for the development of anti-aging drugs and clinical trials. It is expected that researchers will find a means to delay the onset of diseases, which will be available to the masses.

People are born with moral guidelines already built in.

These conclusions were reached by Japanese psychologists in the course of experiments with eight-month-old children. The kids were shown on the computer screen an animation with two multi-colored balls. One of them offended the other. In another video, a stone was falling on a ball. The children were able to control the computer system using eye-tracking technology. When they had the opportunity, they sought to punish the aggressor ball and drop the stone on it. It turned out that infants who still cannot talk were punishing the antisocial aggressor. This indicates that humans may have developed a tendency toward moral behavior over the course of evolution.

Unsociable people have a higher risk of dementia, scientists say.

They came to this conclusion when they analyzed neuroimaging data from more than 30,000 people from the UK Biobank. Scientists have found that socially isolated people have less gray matter in areas of the brain responsible for memory and learning. Next, the researchers used modeling techniques to explore the association of relative social isolation and loneliness with cases of dementia. After assessing other risk factors, such as chronic diseases, lifestyle, and the presence of depression, scientists found that people who are unsociable are more likely to develop dementia by 26%.

In Britain, robots appeared - waiters.

Amid staff shortages, restaurant chain Bella Italia has adopted BellaBot robots from China's Pudu campaign. The robot can recognize human speech, conduct a simple dialogue and carry up to 40 kilograms.

In five years, scientists will be able to create "love potions".

An anthropologist from the University of Oxford, said that in five years "love potions" will become a reality. According to her, already today there are opportunities for the development of "love drugs". Such remedies will include oxytocin, the hormone that is responsible for attachment. And for unfortunate lovers, it will be possible to create “medicines” based on antidepressants. The main problems with the production of such products are related to ethical issues, but the financial component should outweigh them.

Did you know?

The teeth of mice are so strong that they can even gnaw through concrete.

The longest name of the area, consists of 85 English letters and is called:

"Taumatawhakatangihangakoauauauotamateaturipukakapikimaungahoronukupokaiwhenuakitanatahu" This is a hill in New Zealand. The locals simply call it Taumata.

White water lilies.

Water lilies are one of the most ancient flowering plants on our planet. The leaves and flowers of white water lilies are covered with a substance that repels any dirt, so they never get dirty. Based on them, paints with similar properties were developed.

Sad statistic.

There are currently 160 million orphans in the world. This is the highest figure in history.

Height and depth.

Everest is the highest point on Earth (8848 m), but it does not compare with the deepest point on Earth, the Mariana Trench in the Pacific Ocean, which is about 10994 m deep.

Killer mosquitoes.

Mosquitoes are the deadliest animal in the world: because of the diseases they carry, they kill more people than any other creature.

Chickens lived in trees in the jungle until people tempted them with rice.

British scientists have refuted the theory that people raised chickens for food as early as 10,000 years ago. The researchers conducted a radiocarbon analysis of bird bones found in 600 locations in 89 countries and told their version of domestication. According to them, the chickens lived high in the trees and came into contact with humans only after they began to grow rice.

China has overdone its attempts to save the planet.

So many solar panels and wind farms have been introduced in the country that the power system has ceased to cope with them. According to the plan, everything was logical: the more clean energy, the better for everyone. But the idea of saving the planet from the effects of climate change has failed. Now the country does not have time to spend the "green energy" it produces. And unlike coal, it cannot be put off for a rainy day.

There is as much carbon dioxide in the atmosphere today as there was 4 million years ago.

Prior to the industrial revolution, CO₂ concentration was 280 parts per million. Since that time, humans have emitted 1.5 trillion tons of carbon dioxide into the atmosphere. In May 2020, its level reached 417 parts per million, in May 2021 - 419, in May 2022 - 421. The current amount of CO₂ is comparable to what was on Earth 4.1-4.5 million years ago. Then forests grew on the site of the Arctic tundra, and the sea level was 5-25 meters higher than it is now. This would be enough to flood most modern coastal cities.

Social phobia is visible by biomarkers in the blood, Japanese scientists say.

They found changes in blood counts that are characteristic of hikikomori - people who have abandoned social life and live in isolation for many months or years. The researchers compared the blood tests of 42 hikikomori and 41 regular people. It turned out that sociophobes have a different protein profile. Each of them had increased levels of long-chain acylcarnitine. Hikikomori males also had higher levels of ornithine and arginase, and lower levels of bilirubin and arginine. According to a blood test, scientists were even able to predict the severity of the disease.

More than 20 types of amino acids have been found on the asteroid Ryugu.

Samples from the surface of the asteroid were collected by the Japanese Hayabusa-2 spacecraft and delivered to Earth at the end of 2020. Amino acids are necessary for living beings, and this discovery can become an argument in favor of the extraterrestrial origin of life on our planet.