Li Yuming, a local farmer who is interested in scientific invention, works on his unfinished miniature submarine Xiaguang V on the outskirts of Wuhan, capital of Central China's Hubei province Aug 24, 2007. Xiaguang V, which is 3-metre long, 1.2-metre in height, has a maximum diving depth of 20 metres, and can hold two adults and one child at the same time. The submarine will be used for tour after safety test, local media said. [Photo/Agencies]