Fun Science

Barbados to Open an Embassy in the Metaverse and "Teleport" Its Citizens There Who wants tickets? 😅 Jokes are jokes, but on Sunday, November 14, the Ministry of Foreign Affairs and Foreign Trade made a deal with the Decentraland management, one of the largest digital platforms using cryptocurrency — this is where they decided to open their first embassy. Officials are also discussing terms with other companies such as Somnium Space and SuperWorld. Authorities in Barbados not only eager to legally recognize the metaverse, but also to get virtual real estate for their own use in January 2022.

Slice a Lemon Next to the Balloon and Keep Capm! ☝🏻The balloon bursts when it comes in contact with limonene, an isomer found in citrus essential oils. It reacts with the rubber that makes up the beads, and since both substances are composed of non-polar hydrocarbon chains, they react: limonene begins to dissolve the rubber.

Astrophysicists Believe Black Holes Produce Precious Metal According to scientists, gold, silver, thorium and uranium can be created from the material surrounding a newborn black hole. These elements are generated during a supernova explosion or neutron star collision. However, a new scientific study suggests that they may be created from the surrounding material of an active black hole newly formed.

HIV Can Be Cured Now? ☝🏻Spanish scientists claim to have cured six patients of human immunodeficiency virus (HIV) through stem cell transplantation. The study by scientists at Madrid's Gregorio Marañón Clinic and Barcelona's IrsiCaixa Institute for AIDS Research was published in the medical journal Annals of Internal Medicine on Tuesday. It describes a way to extract HIV infection from the latent reservoir by transplanting stem cells from the umbilical cord and bone marrow. The latent reservoir of HIV is a dormant group of infected cells that continues to spread the virus through the body, but which cannot be detected and cured by drugs or the human immune system.

The Future of Fossil Mining in Space A team of astronauts is experimenting on bacteria capable of using hard rock ions to feed and build colonies. In the future, these microorganisms could be used in ore mining in space. These bacteria are already being tried on land, but scientists are struggling to understand how they behave in orbit so that in the future they could be used to mine ore on the moon or, who knows, on an asteroid or Mars.

New Generation Fitness Tracker The operation principle is based on the analysis of CO2 in the user's exhalation, which allows the user to extract information on what and how much the body has been consuming lately. Whether it has burned carbohydrates or taken up processing fats, how much energy has been excreted, etc. This forms the basis of the current index of "metabolic flexibility" of a particular person as the ability of his body to rationally switch between energy sources depending on the tasks that arise.

Clothing that Grows with a Child by Startup Petit Pli It works on the principle of origami. It can expand both in width and length, grows with the child from 9 months to 4 years. Well, what to say, practical, environmentally friendly and modern.

Who is Whose? Do You have the Brain or Do the Brain has You? Neurophysiology is a highly fascinating science and still little studied. An incredible fact discovered by the neurophysiologist Benjamin Liebet in the 50s shocked the public and not only the scientific community. Libet attached electrodes to the brain and measured the reaction rate, trying to understand how long after an electrical impulse muscle contraction would occur. It turned out that the delay between the impulse and the movement was more than half a second. The brain makes the decision before the mind does. Those same half-seconds pass. To be sure, Libet's experiment wasn't the only one. One of the latest studies on this topic, conducted with the help of functional magnetic resonance imaging, shows that by recording brain activity, scientists can already tell 7 seconds before the action itself, what exactly the person will decide to do. More precisely, he is aware as his decision, which in fact his brain has already made.

It is forbidden to write about it on the Internet, and all books with references to it have been burned! Cruel History is the dark side of history and facts that cannot be published: sects, wars, executions, maniacs, shocking moments, a life you'd never wish for! Warning! It's scary! ❗️Channel is not viewable to users who are under 21 years of age – Cruel History

Ink Reacts with an Alcoholic Solvent Ink is non-polar and hydrophobic. In turn, the alcoholic solvent is polar. The ink molecules are arranged so as to minimize the surface tension between them and the solvent molecules.

Why Do We Age? Numerous theories of aging exist, but the most popular in scientific circles is the theory of telomere shortening. The fact is that one of the main causes of aging is the ability of cells to divide only a specific number of times. Each time after this the human DNA is shortened. In this case telomeres protect the genes. These are the ends of the chromosomes, which shrink with each division. Preserving the length of telomeres and restoring them depends on the activity of the telomerase enzyme. In most cells telomerase is blocked and is only active in stem and germ cells. In addition, as we age, this enzyme is depleted and when the telomere length ends, the so-called "death genes" remain on the ends of the chromosomes, leading to the imminent death of the cells.

Needle-Free Injection The system, created by Canadian startup Cobionix, is a robotic arm that determines the optimal spot for a "needle" by itself and injects it using a special technology. Instead of a needle, it utilizes a powerful jet of active fluid under high pressure. The use of the Cobi robot makes it possible to vaccinate a large number of people at once and also reduces health care costs. In addition, Cobi can be used in areas with a shortage of trained professionals.

The Mind-Reading Helmet Created The technology behind the Kernel helmet has long been known to scientists, but what is striking is the price and size of the device. Previously, such equipment would have taken up all the space of an average room and cost millions of dollars. It has been possible to reduce the size of the device due to lasers and computer microchips. Scientists developed two versions of the helmet: 👉🏻 Flow — The helmet measures changes in blood oxygen saturation levels. When any part of the brain gets excited, blood is directed there to provide oxygen to the neurons, which is what the helmet captures with laser technology. 👉🏻 Flux — This helmet works like a magnetoencephalography, capturing the magnetic fields generated by electrical brain activity. The former should help with developing attention, dealing with emotional state issues, while Flux is better suited for assessing brain function, learning, and processing information flows.

Spider Robot Helps Study World Heritage Sites Scientists at the University of Adelaide have developed CaveX, a robotic spider that scans the Naracoorte Caves. These caves are a World Heritage property and are known for their large number of well-preserved fossil animal remains, so the choice makes sense. The launched robot was able to walk on the uneven terrain in different gaits, made a map and built several combined images from it, and also got into places where a normal person would definitely not get through. In this way, scientists hope to study as many cave surfaces as possible and find new entrances and new fossils there as well.

A brilliant video that allows us to see how the heart of a 72-hour-old chicken embryo beats. For teaching purposes, ink was injected into the embryo's yolk artery.

OUR WORLD IS NOT REAL We live on the wreckage of an advanced civilization, and official science takes us for fools by rewriting history: - We are not told about the nuclear winter of 1816; - We are not told about free atmospheric electricity (this technology is over 200 years old); - We are never told the truth, for it would destroy the "system." But where to find it? ⬇️ The HISTORY channel collects material about vanished civilizations, military secrets, ingenious inventions, disasters, sensations, discoveries, versions and facts. ➡️ You just have to subscribe

Chimpanzees Have Better Visual Memory Than Humans Thus, it's quite easy to teach it to count to 10 and to press buttons on the phone, even for the likes (that is, without any real material reward). Doesn't it remind you of anyone? After all, memory is an amazing thing, capable of incredible deeds. It's like a Ferrari. You can race it, win races, if you train properly. Yet, unfortunately, most people have their Ferrari just sitting idle in the garage, sometimes just going out for bread. Do you remember what your loved ones wore yesterday and what the license plate number of the neighboring car in the parking lot where you leave your car? Many, by the way, do not even remember the license plate number of their car!

Your Stomach Can Dissolve Aluminum The stomach of the average person secretes hydrochloric acid, a substance that can dissolve most existing substances (including metals, plastics, etc.) in a certain amount of time. If this substance comes into contact with the skin, it will cause severe burns. Countries around the world synthesize hydrochloric acid and use it in industry as the strongest solvent. During a day, the human body usually excretes about 2 liters of hydrochloric acid. At the same time, a thin layer of mucous membrane in the stomach completely protects it from the strongest damage by this substance. It is like an incredibly strong armor, which is inside you, takes up no space and acts only against those substances against which it is supposed to. Just below you can see how hydrochloric acid slowly but surely dissolves aluminum.

How Pills Dissolve in Our Bodies Some pills and capsules have a protective coating that prevents damage to the mucous membrane of the stomach. These dosage forms are coated with a material that only begins to dissolve when exposed to a less acidic environment or the digestive enzymes of the small intestine.

Now the neural network is able to generate not only people's faces, but also people themselves. And in full height. None of the people in the animation above ever existed.