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  • (cur | prev) 18:03, 1 October 2021T (talk | contribs). . (1,878 bytes) (+1,878). . (Update of the Newcomen steam engine by James Watt. Figure 181 of textbook <ref> https://archive.org/details/practicalphysics00blacrich/page/220/mode/2up PRACTICAL PHYSICS FUNDAMENTAL PRINCIPLES AND APPLICATIONS TO DAILY LIFE BY N. HENRY BLACK,...)