手回し発電機の活用による"電源"概念の形成
Formation of the Concept of "Electric Power Source" Utilizing a Hand-Operated Dynamo

Yuuichi Iiri, Hiroshi Tounoki
1988 Journal of the Physics Education Society of Japan  
doi:10.20653/pesj.36.4_371 fatcat:xo42vf3bxbgm5nf24jcbim3p4a