Digital Tbucket Tank (DTT)

Science tank

Welcome to our “Science Tank” section. In this area of ​​the website, we deal with relevant discoveries from the world of science (physics, mathematics, computer science, medicine and many more) in an interdisciplinary manner. We publish important achievements from around the world with a special focus on the scientific environment in Göttingen. Have fun and stay curious.     

Gravitational waves can help explain the asymmetry between matter and antimatter

People, earth or stars came into being because more in the first second of the universe's existence matter as a Antimatter was produced. This asymmetry was extremely small. For every 10 billion particles of antimatter there are 10 billion + 1 particles of matter. This minimal imbalance led to the creation of the material universe, a phenomenon that modern physics cannot explain.

Because from the theory it follows that exactly the same number of matter and antimatter particles must have arisen. A group of theoretical Physiker has determined that it cannot be ruled out that we are able to produce non-optical solitons - Q-balls - to discover, and that their discovery would enable us to answer the question of why more matter than antimatter arose after the Big Bang.

Physicists currently assume that the asymmetry of matter and Antimatter formed in the first second after the Big Bang and that the emerging universe rapidly increased in size during this time. However, verifying the theory of cosmological inflation is extremely difficult. To test them, we would have to have huge ones particle Accelerator and supply them with more energy than we can generate.

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Molecular light transformer: seeing what you couldn't see before

Researchers from several European universities and the Chinese Wuhan Institute of Technology have developed a new method to detect light in the deep infrared range by using it frequency convert into that of visible light. The device can see the "field of view" of sensitive detectors for visible light up into the Infrared range expand. The discovery, described as groundbreaking, was made in the magazine Science published.

Frequency changeover is not an easy task. Because of the Conservation of energy the frequency of light is a fundamental property that cannot easily be changed by reflecting light off a surface or directing it through a material. At lower frequencies, the energy transported by light is insufficient to generate the Photoreceptors to activate in our eyes and in many sensors, which is a problem, since a lot takes place in the frequency range below 100 THz, ie in the mid and far infrared. For example, a body with a surface temperature of 20 ° C emits infrared light with frequencies of up to 10 THz, which can be "seen" with the help of thermal imaging. In addition, chemical and biological substances have pronounced absorption bands in the mid-infrared range, which means that we can use them with the help of the infraredspectroscopy identify non-destructively.

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Don't galaxies need dark matter? Growing gap between theory and observation

An international team of researchers led by scientists from the Netherlands reports that they are in the Galaxy AGC 114905 found no traces of dark matter. It is now widely accepted that galaxies can only exist thanks to dark matter, the interaction of which holds them together.

Two years ago, Pavel Mancera Piña and his team from the University of Groningen reported that they had found six galaxies with little or no dark matter. At that time they were told by their colleagues that they had better look, then they would find out that they had to be there. Now, after 40 hours of observation with the Very Large Array (VLA), the scientists confirmed what they had previously established - the existence of galaxies without dark matter.

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Artificial intelligence shows that we may not even know half of the structures in our body cells

Many of the diseases that affect us are related to cell malfunction. It might be possible to treat them more effectively, but first scientists need to understand exactly how cells are built and function. By combining artificial intelligence Using microscopic and biochemical techniques, scientists at the University of California, San Diego Medical School (UCSD) have made an important step in understanding the cells of the human body.


With Microscopes we can see cell structures as small as a single micrometer. In contrast, biochemical techniques that use individual proteins make it possible to study structures the size of nanometers, i.e. 1 / 1000th of a micrometer. However, a major problem in the life sciences is completing the knowledge of what is inside the cell between the micro and nanoscale. It has been found to help with this artificial intelligence is possible.

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One who rules them all. Physicists simplified the architecture of a photonic quantum computer

Modern quantum computers are very complex devices that are difficult to build, difficult to scale and require extremely low temperatures to operate. For this reason, scientists have long been interested in optical quantum computers. Photons can easily transmit information, and a photonic quantum computer could work at room temperature. The problem, however, is that while you know how to handle individual Quantum logic gates for photons, but creating a large number of gates and connecting them in such a way that complex calculations can be made is a major challenge.

However, an optical quantum computer could have a simpler architecture, argue researchers at Stanford University in Optics. They suggest a single atom with the help of a lasers to manipulate, which in turn - with the help of the phenomenon of quantum teleportation - changes the state of a photon. Such an atom can be reset and in several Quantum gates can be used so that there is no need to build different physical gates, which in turn will greatly simplify the architecture of a quantum computer.

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Deformed nuclei are doubly magical. Scientists have found the missing mass of zirconium-80

Scientist of the National Superconducting Cyclotron Laboratory (NSCL) and the Facility for Rare Isotope Beams (FRIB) at Michigan State University have solved the mystery of the missing mass of zirconium-80, a puzzle they have come across themselves. The experiments carried out at the NSCL have shown that the core of Zirconium-80containing 40 protons and 40 neutrons is much lighter than it should be. The theorists at FRIB have now carried out calculations that provide answers to the question of what happens to the missing mass.

The relationship between theorists and experimental physicists is like a coordinated dance, says lead author of the paper published in Nature Physics, Alec Hamaker. Sometimes it is the theorists who lead the way and show something before experimental discovery, and sometimes it is the experimenters discover something that the theorists did not expect, adds Ryan Ringle.

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Graphs in a flexible and transparent display from Poland

A team of scientists from the University of Lodz has a prototype of one OLED displays developed with a graphene electrode. The solution makes use of the plasticity and transparency of the material to create flexible, flexible screens and manufacture other types of displays.

Dr. Paweł Kowalczyk from the University of Łódź emphasizes: "It is not a theoretical model, but an actually functioning device. We have succeeded in creating a transparent structure that is compatible with OLED diodes cooperates and makes it possible to apply all solutions of flexible electronics in practice ". That used in the structure graphs was modified with rhenium oxide, which leads to better parameters of the so-called output operation, ie without unnecessary flashing of the diode.

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Parker Solar Probe is closer to the sun than ever before

The probe that flies to the sun - the Parker Solar Probe (PSP) - recently broke two records. It is once again the fastest moving human-made object and the closest object to the sun. The probe is currently in the middle of its 10th close encounter with our star.

According to NASA, on November 21, the probe came at a speed of 586.864 km / h up to 8,5 million kilometers to our star. In the following rounds, PSP will continue to accelerate and get closer. The probe is gradually moving away from the Sun and between December 23rd and January 9th will send back to Earth the data it collects during its encounter with the Sun.

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Electronic plasters for monitoring bones

A team of researchers from the University of Arizona developed a super-thin wireless device that works permanently with the Bone surface merges. A new electronic circuit solution of this kind, the so-called Osseo-Surface electronics, is in an in Nature Communications published article.


The outer layers of the bone are renewed in the same way as the outer layers of the skin. So if a traditional glue was used to attach something to the bone, it would fall off after a few months. That is why the co-author of the study, John Szivek from the BIO5 Institute, developed an adhesive that Calcium molecules contains, the atomic structure of which is similar to that of bone cells. The chip is very thin - as thick as a piece of paper - so it doesn't irritate the muscle tissue that comes into contact with the bones.

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