User contributions
- 17:24, 4 January 2019 (diff | hist) . . (+84) . . Talk:2094: Short Selling
- 17:23, 4 January 2019 (diff | hist) . . (+703) . . Talk:2094: Short Selling
- 12:29, 20 November 2018 (diff | hist) . . (+38) . . 2074: Airplanes and Spaceships
- 12:26, 20 November 2018 (diff | hist) . . (+41) . . 2074: Airplanes and Spaceships (→Explanation: +second link)