Тази общност е предназначена за създаване и разпространение на учебно съдържание на български език. Можете да създавате и споделяте свои ресурси във всички предметни области на училищното образование. За целта можете да създавате свои подобщности или да ползвате вече създадени.
In August 1912, Austrian physicist Victor Hess made a historic balloon flight that opened a new window on matter in the universe. As he ascended to 5300 metres, he measured the rate of ionization in the atmosphere and found that it increased to some three times that at sea level. He concluded that penetrating radiation was entering the atmosphere from above. He had discovered cosmic rays.These high-energy particles arriving from outer space are mainly (89%) protons – nuclei of hydrogen, the
The Municipal Center for extracurricular activities and studies according to interests, village of Baykal is an educational unit at Municipality of Dolna Mitropoliya, Bulgaria It is managed by a director appointed by the Mayor of the Municipality. I Organize workshops to introduce teachers to the projects and models. It organizes and carries out its activity in conformity with the following purposes and priorities: - work with pupils at the age of 10 to 14/18 years from all 8 municipal schools
