Page 21 - Yoshihito Isogawa - The LEGO MINDSTORMS EV3 Idea Book_ 181 Simple Machines and Clever Contraptions-No Starch Press (2014)
P. 21

#15




                                                                                        ×4
                                   ×2          ×2





                                                                       20:12:36:12:20 = 5:3:9:3:5























         #16




                                                                                                    5


                                                                         ×2
                                                                                       ×2



                                       4:4 = 1:1






















         12

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