ななんだこの大砲は ななんだこの兵器は こんな大砲があったのか？ Testing The Atomic Bomb | Hiroshima | BBCDiscover key moments from history and stories about fascinating people on the Official BBC Documentary channel: http://bit.ly/BBCDocs_YouTube_ChannelThe firs...www.youtube.com
Testing The Atomic Bomb | Hiroshima | BBCDiscover key moments from history and stories about fascinating people on the Official BBC Documentary channel: http://bit.ly/BBCDocs_YouTube_ChannelThe firs...www.youtube.com
