Quaternions, octonions or sedenions are hypercomplex numbers, i.e. 'extensions of complex numbers to multidimensional spaces'. For some researcher,s dealing with fractal sets on their basis may be an escape from everyday laboratory work. Professor Andrzej Katunin talks to PAP - Science in Poland about the history of the search for hypercomplex fractals.
A concrete bowling ball designed by students of the West Pomeranian University of Technology in Szczecin won a prestigious competition during the convention of the American Concrete Institute. The team from Szczecin defeated competitors from all over the world.
Researchers at the Military University of Technology are developing tunable hybrid metamaterials that open up the possibility of designing active microcircuits with the ability to switch, modulate, slow down and accelerate terahertz waves. They can be a platform for building multifunctional photonic devices such as biochemical sensors, absorbers, filters, non-linear switches whose properties can be actively modulated.
Researchers are wondering whether knowledge in the field of quantum mechanics will allow them to convert information into mechanical work more effectively or in a completely new way. Polish physicist presents mathematical tools that will bring this branch of physics (quantum thermodynamics) closer to experimental stage.
In quantum droplets - a new state of matter, known only for a few years (a 'liquefied' Bose-Einstein condensate) - it is possible to observe unusual quantum waves called solitons with very interesting properties, according to the analyses of Polish physicists. A theoretical paper on this topic was published in the prestigious Physical Review Letters.
Crowds of people heading in different directions meet at pedestrian crossings, stations and stadiums. Just like particles of matter in colloids or substances in some cells, these people spontaneously form traffic lanes. Researchers from Poland and the UK have just described the mathematical rules of this unusual dance in a publication in Science.