User contributions
- 12:59, 21 December 2015 (diff | hist) . . (+156) . . Talk:1619: Watson Medical Algorithm (Comment on num limbs)
- 05:24, 1 May 2015 (diff | hist) . . (-1) . . 1518: Typical Morning Routine
- 11:48, 3 November 2014 (diff | hist) . . (+236) . . Talk:1442: Chemistry
- 11:46, 3 November 2014 (diff | hist) . . (-104) . . 1442: Chemistry (→Explanation: Oxygen and reactivity)