Research is understood as a systematic, critical, controlled and repeatable process of acquiring new knowledge, necessary (and sometimes sufficient) for identifying, determining and solving scientific (theoretical and empirical) problems.
Research into the possibility of applying the two-stage mechanical oscillator by academician Veljko Milković in the world is not waning. Every year, several scientific papers are published around the world that deal with the specific application of the two-stage mechanical oscillator, and a lot of these scientific research papers are related to its application on the hand water pump. The following scientific paper was published in Nepal, at Kathmandu University located at the municipality of Dhulikhel.
A group of authors from the Department of Geography, Tourism and Hotel Management at the Faculty of Natural Sciences and Mathematics of the University of Novi Sad published an international scientific research paper on Petrovaradin Fortress entitled: Sustainability of Underground Heritage, an example of military galleries of Petrovaradin Fortress in Novi Sad. The paper was published in English, and Veljko Milković is mentioned several times in the references of this paper.
Academician Veljko Milković's two-stage mechanical oscillator is being researched all over the world. Every year, several scientific papers are published around the world dealing with the application of this invention, and many of these papers are research related to the application of this oscillator to hand-operated water pumps. The following scientific paper was published in Poland, at the University of Technology in the city of Łódź
The guest on the YouTube channel Putni Dnevnik was Veljko Milković, inventor and researcher. In this visit, Academician Milković talks about the improved version of the two-stage mechanical oscillator, gives previously unpublished details about his research of the Petrovaradin Fortress, as well as artifacts that support his hypothesis that the legendary Atlantis civilization was in today's Pannonian Basin in Serbia.
Professor Klaus W. Turtur from the Ostfalia University of Applied Sciences in Germany has published an interesting paper on the topic of zero point energy and research related to the exploitation of this phenomenon as a free source of electricity. Among the potential sources of zero point energy is the two-stage mechanical oscillator of academician Veljko Milković.
International research of Milković's water pumps is not abating. However, there are papers, such as this one, in which Veljko Milković is not mentioned anywhere, although it is obvious that it is his invention. The following scientific paper was published in India.