20 April 2013
- 23:0923:09, 20 April 2013 diff hist 0 SCRAP Humboldt two pendulum harmonograph →Costs Tag: n
- 23:0923:09, 20 April 2013 diff hist +180 SCRAP Humboldt two pendulum harmonograph →Costs Tag: n
17 April 2013
- 01:3201:32, 17 April 2013 diff hist +94 SCRAP Humboldt two pendulum harmonograph No edit summary Tag: n
15 April 2013
- 03:3303:33, 15 April 2013 diff hist +1,063 SCRAP Humboldt two pendulum harmonograph →Description of final project Tag: n
- 03:3203:32, 15 April 2013 diff hist +1,390 SCRAP Humboldt two pendulum harmonograph →How to build Tag: n
- 03:3103:31, 15 April 2013 diff hist +525 SCRAP Humboldt two pendulum harmonograph →Maintenance Cost Tag: n