The most unusual action in honor of the condom

The beginning of 2011 for Buenos Aires was marked by an original event - the longest condom in the world was put on a 67-meter obelisk erected in memory of the city's history. Such an action was carried out during the World AIDS Day. The goal of the city authorities was to draw the attention of residents to the problem of condom use.

Pizza with marijuana

In America, they may be allowed to sell pizza with marijuana. New York State is considering a request from pizza owners to sell cannabis-infused pizza. The owners expect sky-high profits if they are allowed to add such pizza to the menu.

DNA in a meteorite

The Japanese found elements of DNA in a meteorite. Hokkaido University said that in the Murchison meteorite that fell in the last century, detailed analysis found three elements that are the building blocks for DNA. Therefore, it is possible that meteorites played a key role in the emergence of life on Earth.

Cat therapy

Cat therapy (feline therapy) is one of the zootherapy methods: prevention and treatment of diseases through direct contact and communication with a cat. It is actively practiced for the treatment of mental disorders. For example, autism in children, depression or bipolar disorder. The presence of a cat in the house relieves stress and fights chronic fatigue, and a soothing purr, akin to meditation or the sounds of nature, helps to fall into a deep sleep and even relieve physical pain. Scientists have proven that the effect of cat purring on the human body is similar to the effect of ultrasound treatment. It activates regenerative functions. When a cat purrs, its wounds and fractures heal faster. A similar effect can be seen in humans.

The largest banknote

The largest denomination banknote in history was issued in Zimbabwe during a period of hyperinflation. One bill had a denomination of 100 trillion Zimbabwean dollars.

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