| No. | Date | Subject | Type of Activity |
|---|---|---|---|
| 1463 | Mar. 21, 2019 | A Toy Model for Neutrino Oscillation | Add section |
| 1462 | Mar. 19, 2019 | Examples of Perturbation Calculation | Delete text and erroneous formulas |
| 1461 | Mar. 12, 2019 | Parity, Time-reversal and CPT Invariance | Add text and tables |
| 1460 | Mar. 10, 2019 | Energy of A Particle | Add topic |
| 1459 | Feb. 19, 2019 | List of Cancer Risks | Add text and image |
| 1458 | Feb. 19, 2019 | Pair Creation from Vacuum | Add text and image |
| 1457 | Feb. 05, 2019 | History of Cosmic Expansion | Revised text, graph and table |
| 1456 | Feb. 02, 2019 | Types of Cosmic Distance | Revised table |
| 1455 | Jan. 23, 2019 | Black Hole Interior | Add section |
| 1454 | Jan. 17, 2019 | Repeating Fast Radio Burst (FRB) and Magnetar | Add section |
| 1453 | Jan. 09, 2019 | Density Power Spectrum | Add section |
| 1452 | Jan. 01, 2019 | CMB Data Reduction (2019 Edition) | Add section |
| 1405-1451 | Jan-Dec, 2018 | 2018 Updates | Add, replace, revise, ... |
| 1230-1404 | Jan-Dec, 2017 | 2017 Updates | Add, replace, revise, ... |
| 1228-1329 | Jan-Dec, 2016 | 2016 Updates | Add, replace, revise, ... |
| 1115-1227 | Jan-Dec, 2015 | 2015 Updates | Add, replace, revise, ... |
| 0985-1114 | Jan-Dec, 2014 | 2014 Updates | Add, replace, revise, ... |
| 0823-0984 | Jan-Dec, 2013 | 2013 Updates | Add, replace, revise, ... |
| 0654-0822 | Jan-Dec, 2012 | 2012 Updates | Add, replace, revise, ... |
| 0533-0653 | Jan-Dec, 2011 | 2011 Updates | Add, replace, revise, ... |
| 0400-0532 | Jan-Dec, 2010 | 2010 Updates | Add, replace, revise, ... |
| 0221-0399 | Jan-Dec, 2009 | 2009 Updates | Add, replace, revise, ... |
| 0001-0220 | Mar-Dec, 2008 | 2008 Updates | Add, replace, revise, ... |
| Oct 2002 - Mar 2008 |
A Review of the Universe | Write webpages |