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Home Chemistry Contents of Natural Science and Advanced Technology Education, 2022

Natural Science and Advanced Technology Education, 2/2022, vol. 31

in Contents of Natural Science and Advanced Technology Education, 2022

EXPERIMENTS

Determining the Dependence of the Speed of Sound in Air on the Temperature Based on Properties of Standing Waves

Geo Kalfov
First Private Mathematical High School – Sofia (Bulgaria)

https://doi.org/10.53656/nat2022-2.02

Abstract. Standing waves are a naturally arising phenomenon in many situations where sound waves propagate in an enclosed medium…

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NEW APPROACHES

COMETS – PART 1

Pencho Markishki
Institute of Astronomy and National Astronomical Observatory - BAS

https://doi.org/10.53656/nat2022-2.03

Absract. The appearance of a bright comet is one of the most beautiful astronomical phenomena, attracting the attention of professionals and amateur astronomers, as well as the media around the world...

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SCIENCE AND SOCIETY

Analogies Between Chemical Reactions and Quality of Workplace Environment

Àngel Berna, Gonzalo Miranda
University of Valencia (Spain)

https://doi.org/10.53656/nat2022-2.04

Abstract. Analogies are useful to deepen understanding of the object of study…

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EDUCATION: THEORY AND PRACTICE

INVESTIGATION OF THE BEHAVIOR OF CONICAL PILES OF GRANULES AND POWDER

Dragni Dragnev
Technische Universität München, Germany

https://doi.org/10.53656/nat2022-2.01

Absract. When a granular material is poured on top of a surface, the formation of a cone-like pile is observed...

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FROM THE RESEARCH LABORATORIES

EXPERIMENTAL DETERMINATION OF THE SPECIFIC HEAT CAPACITY OF AQUEOUS LICL SOLUTIONS AS A FUNCTION OF TEMPERATURE AND CONCENTRATION

Ivo Lozanov, Yavor Yordanov
National high School of Science and Mathematics (Sofia)

https://doi.org/10.53656/nat2022-2.05

Absract. This project is focused on the experimental determination of the specific heat capacity of aqueous solutions of LiCl with different mass concentrations as a function of temperature...

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EXPERIMENTAL DETERMINATION OF THE SPECIFIC HEAT CAPACITY OF AQUEOUS LICL SOLUTIONS AS A FUNCTION OF TEMPERATURE AND CONCENTRATION

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