Talk:Torpedo gunboat

This article is within the scope of WikiProject Ships, a project to improve all Ship-related articles. If you would like to help improve this and other articles, please join the project, or contribute to the project discussion. All interested editors are welcome. To use this banner, please see the full instructions.ShipsWikipedia:WikiProject ShipsTemplate:WikiProject ShipsShips articles

Military history: Maritime

This article is within the scope of the Military history WikiProject. If you would like to participate, please visit the project page, where you can join the project and see a list of open tasks. To use this banner, please see the full instructions.Military historyWikipedia:WikiProject Military historyTemplate:WikiProject Military historymilitary history articles

This article has been checked against the following criteria for B-class status:
Referencing and citation: criterion met Coverage and accuracy: criterion not met Structure: criterion met Grammar and style: criterion met Supporting materials: criterion met

Associated task forces:
/
	Maritime warfare task force

Comment

I gather the author believes there is a distinction between a torpedo gunboat and a torpedo boat. This needs to be clearly explained. Thatcher131 17:04, 6 March 2006 (UTC)[reply]

Image of HMS Spider

Why does the image of the HMS Spider look at first glance like it is scanned from an old dot-matrix type news media, with numerous small "pixels" visible, but when you click on the larger image, it is relatively sharp and clear with no pixelation visible. AnnaGoFast (talk) 23:13, 26 January 2018 (UTC)[reply]

Moire patterns. It's probably a newspaper or other halftone image originally (or may just be a scanning artefact). These have a regular single frequency component in their density. When they're resampled to downsize them, this can give rise to a beat frequency - a visible effect at a much lower frequency. Andy Dingley (talk) 23:20, 26 January 2018 (UTC)[reply]