Cheng's Lectures on Relativity & Cosmology
@gr-cheng • Joined October 15, 2011
At a glance
Subscribers
Last 29 days422
Views
Last 29 days24.1K
Videos
Last 29 days87
Charts
Subscribers, views & videos over time
Subscribers gained (weekly) · 6 mo
Views gained (weekly) · 6 mo
Subs milestone changes (up to 30)
Views milestone changes (up to 30)
Engagement
Avg. views per video
277
Total views ÷ total videos
Views per subscriber
57×
Total views ÷ subscribers
Subs per video
5
Subscribers ÷ total videos
Revenue estimate
Details →Total (all-time): $17 – $48
Daily avg.: $0 – $0
Weekly avg.: $0 – $0
Last 29 days: $0 – $1
Based on estimated $0.7–$2 CPM.
Analytics tables
Analytics Table:Cheng's Lectures on Relativity & Cosmology
| Date | subscribers | views | videos |
|---|---|---|---|
Jul 6, 2026 Jul 6 Mon | 422 -- | 24.1K +1 | 87 -- |
Jun 29, 2026 Jun 29 Mon | 422 +1 | 24.1K +64 | 87 -- |
Jun 22, 2026 Jun 22 Mon | 421 +1 | 24.0K +89 | 87 -- |
Jun 15, 2026 Jun 15 Mon | 420 +2 | 23.9K +58 | 87 -- |
Jun 14, 2026 Jun 14 Sun | 418 +3 | 23.9K +115 | 87 -- |
Jun 1, 2026 Jun 1 Mon | 415 +3 | 23.8K +55 | 87 -- |
May 25, 2026 May 25 Mon | 412 +1 | 23.7K +77 | 87 -- |
May 18, 2026 May 18 Mon | 411 +2 | 23.6K +81 | 87 -- |
May 11, 2026 May 11 Mon | 409 +1 | 23.5K +70 | 87 -- |
May 4, 2026 May 4 Mon | 408 -- | 23.5K -- | 87 -- |
Subscribers gained (weekly)
| Week | Subscribers gained | Change vs prev |
|---|---|---|
Mar 25, 2026 | 2 | +2 |
Mar 30, 2026 | 4 | +2 |
Apr 6, 2026 | 1 | -3 |
Apr 13, 2026 | 7 | +6 |
Apr 20, 2026 | 3 | -4 |
Apr 27, 2026 | 1 | -2 |
May 4, 2026 | 0 | -1 |
May 11, 2026 | 1 | +1 |
May 18, 2026 | 2 | +1 |
May 25, 2026 | 1 | -1 |
Jun 1, 2026 | 3 | +2 |
Jun 14, 2026 | 3 | -- |
Jun 15, 2026 | 2 | -1 |
Jun 22, 2026 | 1 | -1 |
Jun 29, 2026 | 1 | -- |
Jul 6, 2026 | 0 | -1 |
Views gained (weekly)
| Week | Views gained | Change vs prev |
|---|---|---|
Mar 25, 2026 | 141 | +141 |
Mar 30, 2026 | 113 | -28 |
Apr 6, 2026 | 103 | -10 |
Apr 13, 2026 | 91 | -12 |
Apr 20, 2026 | 127 | +36 |
Apr 27, 2026 | 67 | -60 |
May 4, 2026 | 84 | +17 |
May 11, 2026 | 70 | -14 |
May 18, 2026 | 81 | +11 |
May 25, 2026 | 77 | -4 |
Jun 1, 2026 | 55 | -22 |
Jun 14, 2026 | 115 | +60 |
Jun 15, 2026 | 58 | -57 |
Jun 22, 2026 | 89 | +31 |
Jun 29, 2026 | 64 | -25 |
Jul 6, 2026 | 1 | -63 |
About
This online course is linked to the textbook A College Course on Relativity and Cosmology by Ta-Pei Cheng 鄭大培 (Oxford 2015). The 30 lectures (each in 3 or 4 video clips) are divided into eight parts. Part 1 contains Introduction & Special Relativity. The next three parts are devoted to Einstein’s theory of gravitation,…
- Handle
- @gr-cheng
- Joined
- October 15, 2011
More features coming
We're working on new analytics and tools. Stay tuned.
More features coming
We're working on new analytics and tools. Stay tuned.