Destructive human activity

The structure of ecosystems that existed for at least 66 million years will disappear because of man. The scientists found that the U-shaped curve of body size versus food type in terrestrial mammals has persisted for the past 66 million years and probably dates back to the time of the dinosaurs. The researchers also found that this pattern is shared by other vertebrates. Due to human activities, the U-shaped dependence can disappear, leading to serious environmental consequenc

Alcohol and the pandemic

Alcohol-related deaths in the US have risen 25% during the pandemic. Scientists came to such a disappointing conclusion after analyzing the data of the National Center for Health Statistics. The age group aged 25-34 was especially hit, where the mortality rate rose by 37 percent from 11.8 per 100,000 people to 16.1

The benefits of physical activity

The study showed that exercise stimulated rats to give up fat. Scientists have given rodents unlimited access to fatty treats. The animals pressed the lever, heard the signal and then took the food. Then the scientists divided the rats into two groups: the rats from the first group ran fast on the wheel, from the other they led a normal life. At this stage of the experiment, the rats were not given any treats for 30 days. After a month period, the rats were again given access to fatty foods. It turned out that the rodents from the first, “sports” group pressed the lever that gave them food much less often than the rats from the second, “unsportsmanlike” group. According to scientists, the result of the experiment is direct evidence that physical activity can train willpower and reduce cravings for certain products.

China will protect the Earth from asteroids

China is going to create an effective system of ground and space-based, which will notify in advance of objects that pose a danger to our planet. At the same time, Chinese experts plan to develop technologies that can prevent the approach of such celestial bodies. “We will try by the end of the 14th Five-Year Plan (2021-2025), or in 2025-2026, to start testing technologies for close-range observation of any asteroid that poses a threat to the Earth. With their help, we will carry out a collision, as a result of which this celestial body will be displaced from its orbit,” said Wu Yanhua, deputy head of the China National Space Administration.

Well, how can you resist?

That is why it is impossible to resist the gaze of dogs. One of the discoveries of the scientific event Experimental Biology 2022 was the study of the guys from Pittsburgh. They studied the evolution of dogs, and came to the conclusion that, unlike wolves, evolution added special muscles to the face of dogs to create that very kind dog look. So, dogs were able to establish a productive relationship with people.

Why 100% humidity is not water?

Because we are talking about the relative humidity of the air. When the air humidity is 100%, this means that the maximum possible amount of water vapor is in the air and the air cannot take more. In other words, the evaporation of water under these conditions is impossible. The lower the relative humidity of the air (that is, not 100%, but, say, 23%), the more water can pass into steam and the higher the rate of evaporation.

The most popular surnames in Sweden

There are more than 200,000 Karlssons in Sweden. The familiar surname Karlsson is quite popular in Sweden. It takes the honorable 3rd place among the most common surnames: it is worn by more than 200,000 people. But in the 1st place is the name Anderson: it belongs to almost 240,000 people.

Hand made of "liquid metal"

American scientists from Binghamton University have created a hand from "liquid metal" like the Terminator! The product consists of a Fields alloy, which includes bismuth, indium and tin, and a rubber-like elastomer frame has been stretched over it. Thanks to these tricks, the structure can be deformed as you like, and after heating it returns to its original state.

The most expensive fountain

The construction of the most expensive fountain on Earth, which is located in Dubai, cost $ 218 million. The Dubai Fountain also entered the Guinness Book of Records as the largest of its kind.

Danger of marijuana for pets

Pets have become even more likely to be poisoned with cannabis after its legalization in Canada. This conclusion was reached by a team of researchers after analyzing the results of a survey of 251 veterinarians from Canada and the United States. Most often, animals fell ill due to the fact that, through an oversight, they ate dried marijuana or products with it. Although most of the affected individuals were quickly cured, sixteen deaths were reported by veterinarians.

Cementless eco-concrete

In Canada, they came up with cementless eco-concrete from waste. The new material is 30% stronger than the classic counterpart. The manufacturer uses steel slag and carbon dioxide from the surrounding air instead of cement. As a result of their contact, calcium carbonates are formed. The pilot project provides for the production of 450 tons of concrete per day, which is 25,000 bricks. With such volumes, the new technology will allow capturing about 20 tons of carbon dioxide per day.

The Large Hadron Collider is up and running again

The world's most powerful particle accelerator, the Large Hadron Collider, has returned to work after a three-year hiatus for repairs and upgrades and has begun its third run. Today, beams of protons at an energy of 450 gigaelectronvolts began to circulate in the LHC ring for the first time. In the future, scientists plan to conduct experiments at collision energies of 13.6 teraelectronvolts.

Smart lenses

The timing of the appearance of smart lenses is predicted. The authors of the material noted that many forecasts for the 2040s say that smart lenses will appear on the market of the future. With their help, people will be able to receive information and collect data on medical indicators. Thus, experts predicted the approximate timing of the appearance of smart lenses on the market - the authors believe that this will happen no earlier than in 20 years. The main players in the smart optics market will be Google, Samsung and Sony

James Webb telescope

The James Webb telescope has become one of the coldest objects in space. The temperature of the main MIRI instrument reached -266.75 degrees Celsius. This is only 6 degrees warmer than absolute zero, at which the molecules stop moving. The telescope is almost ready to start shooting deep-sky objects

The most expensive fruit?

Yubari melon is a hybrid of two cantaloupes, the taste of which combines pungency and sweetness, spice, juiciness and sugar content of watermelon pulp, light but long pineapple aftertaste. Fruit price - $22.872

Ticket to Mars

Elon Musk said that everyone can buy a ticket to Mars - it will cost only $100,000. The main goal is to make travel to Mars reasonably affordable. To build a city on Mars, you need to attract about 1 million people. The businessman wants to show the red planet to anyone who wants it. He claims that anyone can work or take out a loan to accumulate a notional amount of $100,000.

Nile crocodile

The Nile crocodile is very experienced and successful in swimming. It usually dives for 2-3 minutes, but can stay underwater for up to 2 hours. It submerges completely and silently under the water, forcing the air out of its large lungs. The Nile crocodile swims very fast underwater. The tail helps to develop speed in water up to 30 km / h.

Interesting facts about dolphins

The communication system of dolphins is so developed that each dolphin has its own name, which he calls out to when relatives address him. They have about the same number of levels of organization of sounds as a person: six. That is: sound, syllable, word, phrase, paragraph, context. There are also dialects. In nature, only two species of mammals have sex for pleasure - humans and dolphins.

The largest venomous snake

The king cobra is the largest venomous snake. It is a common misconception that this is one of the most venomous snakes in the world (although this is McCoy's taipan of the genus taipans, with poison 180 times more potent than cobra venom, and some other species)

Interesting facts about corn flakes

Corn flakes were invented as a cure for sex drive. Corn flakes were created in the 19th century by Dr. John Kellogg to reduce the sex drive in men. They were not sweet and were served for several years for breakfast at the Battle Creek Sanitarium. Later, the doctor's brother realized that the masturbation cure didn't work, added sugar to them, and sold them commercially, creating the first cereal company.