User talk:Sahi Vivek kumar

August 2018
Hello, I'm Donner60. I wanted to let you know that I reverted one of your recent contributions —specifically this edit to Quantum mechanics— because it did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Help Desk or my talk page. Thank you. Donner60 (talk) 01:48, 4 August 2018 (UTC)

Please refrain from making unconstructive edits to Wikipedia, as you did with this edit to Quantum mechanics. Your edits appear to be vandalism and have been reverted or removed. If you would like to experiment, please use the sandbox. Repeated vandalism can result in the loss of editing privileges. Thank you. Donner60 (talk) 01:51, 4 August 2018 (UTC)