L. Spassov, Institute of Solid State Physics, BAS
Contributions of physics in research and technological development of quartz and quartz devices in Bulgaria

V. Andreev, Emeritus Professor, National Institute of Meteorology and Hydrology, BAS
History of the Bulgarian Meteorological and Hydrometeorological Service

V. Andreev, Emeritus Professor, National Institute of Meteorology and Hydrology, BAS
The start of the aviation and Aviation meteorology in Bulgaria

S. Balabanov, Institute of Solid State Physics, BAS
The creative hobby of the notable scientist G. Nadjakov

S. Markov, Institute of Mathematics and Informatics, BAS
Bulgarian teachers and scholars around the Liberation War

N. Nancheva, Emeritus Professor, University of Ruse
Pages from history of physics education in Ruse University “Angel Kanchev”

M. Zamfirov, Faculty of Preschool and Primary School Education, Sofia University
Исторически предпоставки за внедряването и развиването на обучението по информатика в българските училища

A. Karastoyanov, Еmeritus Assistant Professor, Technical University, Sofia
The Rough Way to Reality

I. Todorov, Institute for Nuclear Research and Nuclear Energy, BAS
M. Bushev, Institute of Solid State Physics, BAS
Galileo and Kepler from Middle Ages to the modernity of ХХ Century

G. Kamisheva, Institute of Solid State Physics, BAS
A. Kamishev
Historical Methods for Distance Measurement

I. Azmanov
Georgi Nadzhakov – member of the Soviet Academy of Sciences

I. Azmanov
Again new for the physicist Nadjakov

I. Azmanov
Georgi Nadjakov and the political dangerous over him

I. Azmanov
How was produced internet

I. Azmanov
Cybernetics becomes created by the help of two Bulgarians

I. Azmanov
Sir Isaac Newton and the fraud with the apple

I. Azmanov
First radiation photography

I. Azmanov
Professor Bachmetjew and Ferdinand the King

I. Azmanov
Genetics of the genius with Vavilov’s

I. Azmanov
For the cuisines’ Kurtschatow’s