User contributions
- 18:54, 29 January 2022 (diff | hist) . . (+1) . . Countdown in header text (→Images)
- 12:02, 25 January 2022 (diff | hist) . . (+210) . . Countdown in header text (→The picture)
- 20:23, 29 October 2021 (diff | hist) . . (+44) . . 2535: Common Cold Viruses (→Explanation)
- 23:54, 3 August 2021 (diff | hist) . . (+11) . . 2497: Logic Gates (→Explanation)