How airplanes fly is one of the most important questions within the field of air- and spacecraft development. By studying how paper airplanes behave, one can develop knowledge on flight principles. The purpose of this scientific report was to gain a better understanding of how the design of a paper airplane affected the longest possible flight distance. The studies show...
Optical inhomogeneity plays an essential role in the observation of various objects. For example, it underlies phenomena such as astronomical refraction and mirages occurrence. It is also used in optical devices: for instance, in the Luneburg lens, which is used in the radar reflector and microwave antenna. The research aim is to construct and examine the trajectory of light in...
I present a new physical-mathematical method that describes the shape of a distorted interstellar bubble, namely the surface of a heliosphere deformed by the motion of the circumstellar gas. I created a straightforward but rigorous model, which has been tested on two real objects through a specifically developed algorithm that produces the outline of the bubble. Thus, I obtained a...
The J0640+3856 is a subdwarf red-dwarf eclipsing binary system which was discovered in 2015. at Piszkéstető Observatory. The discovered star has an orbital period of 0.187284394 days and the optical eclipse depth in excess of 6 magnitudes. The special featu-re of the described binary is that, it is the binary with the deepest eclipses compared to other binary systems. I...
When a confetti cannon is fired, a turbulent spectacle follows: hundreds and hundreds of paper snippets swirl through the air in fantastic trajectories. It is this phenomenon that Leonard Münchenbach and Leo Neff devoted themselves to with scholarly rigour in their research project. They constructed a frame that made small strips of paper fall to the floor in the same...
During the COVID pandemic, it's necessary to follow WHO recommendations, such as: wearing face mask, washing hands frequently. Yet, these norms are not enough, because the virus can invade our body in other ways. Medical gowns are made of polypropylene fiber fabric extracted from the fusion, on which virus lives for 8 hrs. Project goal is to modify a protective...
Vibrato is a musical effect consisting of periodic changes in the amplitude and frequency of harmonics and commonly used to enhance sound. On the violin, vibrato can be of very different character depending on the desired effect. The purpose of this project was thus to investigate how vibrato and especially its rate and extent affect the amplitude and frequency of...
The nuclear accident of March 11, 2011 in Fukushima was a crucial experience for mankind. The whole world was in shock and the effects were still unclear at that time. Later it turned out that numerous waters of the earth and thereby its inhabitants were significantly contaminated. On the occasion of the ten-year commemoration of Fukushima, it was the concern...
Magnetic springs have a lot of advantages in comparison with regular steel ones: they are more durable, they save almost all of their properties and serve well for dozens of years. That means that a replacement of mechanical springs and bearings with magnetic ones will lower the consumption sufficiently, due to the larger lifespan. Consequently, it acts very positively for...
The energy consumption of the world is increasing day by day. As a result Greenhouse gases and aerosols are emitted into the atmosphere by burning fossil fuels. The emission of these gases can be easily reduced by using renewable energy sources. This project researches the usability of an amorphous carbon material called Diamond-like carbon(DLC) in solar cells. One of the...