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- 12:58, 27 December 2016 (diff | hist) . . (-3) . . Mechanics in XXI century (→Achievements in space)
- 12:52, 27 December 2016 (diff | hist) . . (+1) . . Mechanics in XXI century (→Achievements in space)
- 12:15, 27 December 2016 (diff | hist) . . (+103) . . Mechanics in XXI century (→Achievements in space)
- 10:40, 26 December 2016 (diff | hist) . . (-2,236) . . Mechanics in XXI century (→Achievements in space)