Invisible Marble Rube Goldberg Machine

National Institute for Materials Science (NIMS) shows an "invisible" Rube Goldberg machine. There is marble moving things, but it appears to be a ghost because of special properties.

NIMS x EUPHRATES #07
EUPHRATEShttps://euphrates.jp/


NIMShttps://www.nims.go.jp/

NIMS­
https://www.nims.go.jp/chikara/