A Chinese inventor, Yang Zongfu celebrates on his six-ton (5,443 kg) ball container named Noah's Ark of China after he succeeds in a series of tests of the vessel in Yiwu, Zhejiang province, August 6, 2012. According to local media, Yang spent two years and 1.5 million RMB (235,585 USD) to build this four-metre diameter vessel, which has been tested capable of housing a three-person family and sufficient food for them to live in 10 months. The vessel was designed to protect people inside from external heat, water and external impact. Picture taken August 6, 2012. REUTERS/China Daily
Unusual Chinese inventions
From a homemade submarine to a quirky version of "Noah's Ark", here is a look at some offbeat inventions.