User contributions
- 13:43, 16 May 2016 (diff | hist) . . (+126) . . Talk:1681: Laser Products
- 13:36, 16 May 2016 (diff | hist) . . (+182) . . 1681: Laser Products (LJR)
- 13:46, 15 April 2016 (diff | hist) . . (+204) . . Talk:1668: Singularity (→Quantum gravity: new section)