User contributions
- 18:17, 22 May 2019 (diff | hist) . . (+136) . . Talk:2153: Effects of High Altitude
- 18:16, 22 May 2019 (diff | hist) . . (+14) . . 2153: Effects of High Altitude (→Explanation)
- 08:35, 13 March 2018 (diff | hist) . . (+410) . . Talk:1966: Smart Home Security