Fun Science

The Virtual Baby X Baby X is a project of the New Zealand Animation Technology Laboratory. And it is extremely different from similar developments. Scientists based on AI, neural networks and psychobiological algorithms have created a virtual girl who reacts to the world as a real child. Moreover, she observes the world around her through a camera and hears it via microphones. She is able to stare at objects and distract herself when she wants to. She even shows emotion.

Fresnel Lens That’s an optical part with a complex stepped surface. It can replace both spherical and cylindrical lenses, as well as other optical parts, such as prisms, and its steps can be delimited by concentric, spiral or linear grooves

Magnetic Levitation That kind of levitation involves a control system with adjustable electromagnet coils in a feedback loop with Hall effect sensors.

Scientists Proved that Time Can Move Backwards in Quantum Devices An international team of physicists has found that time in quantum systems can flow both forward and backward. The results of the study are described in the journal Communications Physics. According to scientific theory, with the state of superposition in quantum systems, time can move simultaneously in opposite directions, including the reversal. Scientists from Bristol (UK), Vienna (Austria) and the Balearic Islands partially proved it during a recent experiment. ☝🏻 The discovery is likely to force a revision of current concepts of time and could provide the impetus for the development of quantum mechanics and new home appliances. To measure time, the team traced entropy, the tendency of closed systems from orderliness to a state of great disorder. If a process causes a large amount of entropy, a return to the previous state becomes nearly impossible, but if it is small enough, the system can roll back in time naturally.

DNA Dating George Church, a world-renowned Harvard geneticist, told the American television channel CBS a couple of years ago that he was involved in the development of an extraordinary online dating app. 📱 It will compare a user's DNA with that of their potential partner to prevent unwanted congenital diseases in their possible children. The development was immediately called eugenics, that is, work on human selection. However, Church, in his defense, says users is to be compatible with 95% of people. In addition, the app will not give open access to any information about the genetic diseases of users. Also, the app is to only analyze information about mutations that lead to highly serious diseases like Tay-Sachs disease, which affects the central nervous system and leads to paralysis and death of a child under the age of 4.

Ubiquitous Energy – Solar Windows American company Ubiquitous Energy has developed technology that enables you to turn any glass surface into a solar panel. According to the new technology, a special organic coating of 0.001 mm is applied to the glass. It captures ultraviolet and infrared radiation, converting it into electricity, while the visible part of the spectrum passes quietly through. The developers emphasize the possibility of creating a hybrid of a simple window and a solar panel, providing homes with electricity.

​​⚡️Festo has developed the BionicKangaroo, a kangaroo-cyborg that partially recovers energy when jumping, stores it and uses for the very next jump. It's essentially a dynamo capable of recharging itself. The robot is also equipped with rubber elastic spring elements, akin to Achilles tendon — mounted on the back of the foot and on the knee joint. This artificial tendon cushions the jump, absorbs kinetic energy and releases it to jump again.

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Salt and Overeating The modern food industry is based on food addiction. Such strategy relies on neurophysiology, and the baser instincts of the human body, which prevail over reason and will. The formula for success is expressed in just three words. These are "salt, sugar and fat". It is evidenced by the results of a study conducted at the Scripps Institute, when scientists fed rats either a diet of low-calorie food or gave them unlimited amounts of junk food. Soon, the latter began exhibiting compulsive eating habits and became obese after 40 days. What’s interesting, junk food effectively reorganized the pleasure centers in their brains. Just a few days of gluttony on junkfood had worn down their reward system to the core and greatly reduced their brain's natural ability to experience pleasure. Thus, they needed to consume more and more to get the same pleasure. And this is one of the signs of addiction!

Air density, greater than the tea bag density during combustion🚀

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.

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.