The guest on the YouTube channel Nauka i Misterije Balkan was Veljko Milković, inventor and researcher. He is engaged in research, invention, innovation, studying the history of inventions, futuristic projects, writing, etc.
Serbian Television USA from Chicago (United States ) published an article on its website about the two-stage mechanical oscillator invented by academician Veljko Milkovic. This informative article notes, among other things, that hundreds of companies around the world use and manufacture machines based on the two-stage mechanical oscillator technology.
The information portal RINA (Regional Information News Agency) visited academician Veljko Milković and published an interview and photos on the topic of Milković's most famous invention - the two-stage mechanical oscillator.