Negative pressure rules not only the Universe or quantum vacuum. Researchers at the Institute of Nuclear Physics PAS in Kraków presented a method was that allowed to estimate, for the first time, the amount of negative pressure in spatially limited liquid crystal systems.
In order to build smaller electronic devices, we must be able to study how electric current flows through objects made of a few or several dozen atoms. A team from the Jagiellonian University in collaboration with researchers from Spain, France and Singapore has developed a method to study the transport of electrons in such small objects.
If antimatter is like a mirror image of matter, why is the Universe full of matter, and not antimatter? Scientists in their experiments find only slight differences between matter and antimatter. The biggest differences still elude them. Prof. Mariusz Witek from the Institute of Nuclear Physics PAS talks about this with PAP.
We do not have to look for dark matter here and now, for example in particle detectors. Traces of interaction of dark matter with ordinary matter can survive in millions of years old geological samples. You just need to know how to look for them, researchers including a Polish scientist suggest.
The Polish concept of time crystals will be realized in Australia for the first time in the world. A method of creating such crystals was developed in Kraków by Prof. Krzysztof Sacha. Thanks to particles reflected by atomic mirrors, scientists will study solid state physics from a completely new perspective.
5, 10, or maybe 15? How many nanometers should nanoparticles of a catalyst measure to optimise the course of reaction? Researchers usually perform laborious tests to find the answer. Scientists at the Institute of Physical Chemistry PAS a new technique to improve the process of such optimisation in microfluidic systems. The size of catalyst nanoparticles can now be changed as needed during a continuous flow through the catalyst bed.
When chemists from the Institute of Physical Chemistry of the Polish Academy of Sciences in Warsaw were starting work on yet another material designed for the efficient production of nanocrystalline zinc oxide, they didn't expect any surprises. They were greatly astonished when the electrical properties of the changing material turned out to be extremely exotic.