Matching Pairs SCIENCEOnline version Watch the video and when you're done, do the task. by Marina Veceva 1 2 3 4 Dr. Lozanov - a psychologist, known for the suggestopedia. Pulsar - this is the name of the first prototype of an electronic clock created by the Bulgarian engineer Peter Petrov. The automatic transmission is the work of Rumen Antonov. The Bulgarian, Koicho Mitev has invented "Digital Literacy and Method of Communication in Mother Tongue".