23 June 2019
- 21:5221:52, 23 June 2019 diff hist +345 m User:ChunStoddard43 No edit summary current
- 11:2511:25, 23 June 2019 diff hist +2,751 N User:ChunStoddard43 Created page with "This kind of ground effect is easily illustrated by taking a tarpaulin out on a windy day and holding it close to the ground: it can be observed that when close enough to the..."