0002安倍晋三🏺 ◆abeshinzo. 警備員[Lv.1(前29)][苗][警](ワッチョイW 1732-jYgf)2024/04/20(土) 17:18:27.26ID:Lwn9R2Eg0?2BP(2000) Massimo @Rainmaker1973 (2024/04/20 14:05:00) A slinky is a pre-compressed helical spring. It was invented by Richard James in the early 1940s.
Its physics is interesting and can perform a number of tricks, such as traveling down a flight of stairs or creating such a mesmerizing coreographical show.