| 单词 | perpetual motionist | 
| 释义 | > as lemmasperpetual ˈmotionist   perpetual ˈmotionist  n. a person who believes in the possibility of building a perpetual motion machine, or who attempts to design or build one. ΚΠ 1779    J. Watt Let. 2 Dec. in  E. Robinson  & D. McKie Partners in Sci. 		(1970)	 74  				Cumming has certainly exposed himself by having anything to do with Perpetual Motionists. 1872    A. De Morgan Budget of Paradoxes 342  				A perpetual motionist wanted to explain his method. 1994    Skeptical Inquirer 		(Nexis)	 22 June 372  				Newman is the most famous of the current crop of perpetual motionists. < as lemmas  | 
	
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