Assen Jordanoff
31 Mins read
Assen Jordanoff was a Bulgarian aviation pioneer, inventor, engineer, and educator who played a crucial role in shaping modern aviation in both…
Dimitar Ivanov Popov
18 Mins read
Dimitar Ivanov Popov (Bulgarian: Димитър Иванов Попов), widely known in scientific literature as Dimitar Ivanov, was one of the most influential Bulgarian…
Ivan Stranski
16 Mins read
Ivan Stranski (Bulgarian: Иван Николов Странски; German: Iwan Nicolá Stranski; 2 January 1897 – 19 June 1979) was a Bulgarian physical chemist…
Georgi Nadjakov
11 Mins read
Georgi Nadjakov is one of the most important yet underrecognized scientific figures in modern history. His groundbreaking discovery of the photoelectret state…
Georgi Lozanov
11 Mins read
Georgi Lozanov was a Bulgarian scientist, psychiatrist, neurologist, psychologist, and educator best known as the creator of suggestology and suggestopedia—an influential theory…
Photoelectret state
9 Mins read
The photoelectret state is a remarkable physical phenomenon in which a material—typically a photoconductor—retains a permanent electric polarization after being exposed to light while under the…