Funding for this research was provided by:
National Research Foundation of Korea (2020M3H4A1A03084600, 2018R1A2A1A19021947)
Received: 16 November 2020
Accepted: 11 June 2021
First Online: 16 July 2021
: H.R., T.Y.K., H.-J.Y., S.S.K., J.K., and S.-W.K. are co-inventors of the patent entitled “ENERGY GENERATOR USING INERTIA” patent number: 10-1940911, Republic of Korea. The other authors declare no competing interests.