- 21:14, 21 July 2020 diff hist -1,091 Digital Filters
- 21:13, 21 July 2020 diff hist +507 Digital Filters
- 20:42, 1 July 2020 diff hist -9 The Doppler Effect
- 00:43, 21 June 2020 diff hist +1 The Doppler Effect
- 00:40, 21 June 2020 diff hist -8 Digital Filters
- 00:39, 21 June 2020 diff hist -26 The Doppler Effect
- 00:38, 21 June 2020 diff hist -24 Digital Filters
- 00:37, 21 June 2020 diff hist -773 Digital Filters
- 00:10, 21 June 2020 diff hist +2 Digital Filters
- 00:10, 21 June 2020 diff hist -1,099 Digital Filters
- 23:25, 20 June 2020 diff hist +1 Digital Filters
- 23:24, 20 June 2020 diff hist -220 Digital Filters
- 23:12, 20 June 2020 diff hist +1 Digital Filters
- 23:04, 20 June 2020 diff hist -766 Digital Filters
- 22:32, 20 June 2020 diff hist +140 Digital Filters
- 22:32, 20 June 2020 diff hist +23 Digital Filters
- 22:29, 20 June 2020 diff hist -1 Digital Filters
- 22:28, 20 June 2020 diff hist -5 Digital Filters
- 21:58, 20 June 2020 diff hist -402 Digital Filters
- 18:54, 19 June 2020 diff hist -316 The Doppler Effect
- 18:35, 19 June 2020 diff hist -533 The Doppler Effect
- 18:04, 19 June 2020 diff hist -205 The Doppler Effect
- 17:49, 19 June 2020 diff hist -229 The Doppler Effect
- 17:15, 19 June 2020 diff hist -248 The Doppler Effect
- 16:58, 19 June 2020 diff hist +1 The Doppler Effect
- 16:57, 19 June 2020 diff hist +1 The Doppler Effect
- 16:47, 19 June 2020 diff hist +23 The Doppler Effect
- 16:38, 19 June 2020 diff hist -197 The Doppler Effect
- 16:27, 19 June 2020 diff hist -58 The Doppler Effect
- 16:17, 19 June 2020 diff hist -57 The Doppler Effect
- 16:12, 19 June 2020 diff hist -194 The Doppler Effect
- 15:54, 19 June 2020 diff hist -18 The Doppler Effect
- 15:44, 19 June 2020 diff hist -98 The Doppler Effect
