User contributions
- 11:17, 17 August 2016 (diff | hist) . . (0) . . 1721: Business Idea (→Explanation)
- 16:51, 1 August 2016 (diff | hist) . . (0) . . 1714: Volcano Types (typo)
- 02:10, 23 March 2016 (diff | hist) . . (+113) . . 1526: Placebo Blocker (→Explanation: define placebo)