Page 28 - Yoshihito Isogawa - The LEGO MINDSTORMS EV3 Idea Book_ 181 Simple Machines and Clever Contraptions-No Starch Press (2014)

#27

12:20 = 3:5

3
×2

12:36 = 1:3
3:5

1:3

1:5

#28

12:20 = 3:5
×2

3
×2

×2

12:20 = 3:5

3:5 15:25

3:5 9:15

9:25

19

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