Discover key moments from history and stories about fascinating people on the Official BBC Documentary channel: http://bit.ly/BBCDocs_YouTube_Channel The first ever Atomic bomb testing left the scientists not only amazed, but also apprehensive about the beast they had created. Subscribe: http://bit.ly/BBCStudios WATCH MORE: Hiroshima: http://bit.ly/BBCHiroshima Horizon: http://bit.ly/BBCHorizon Best of Alan Partridge: http://bit.ly/BestOfAlanPartridge Harry Enfield and Chums: http://bit.ly/HarryEnfieldAndChums Welcome to BBC Studios, bringing you the best of British TV! Here you'll find classic comedy, gripping drama, as well as the best documentaries, science and history! Take a look at complete listings for all our shows - we've got plenty to keep you entertained! Is there a BBC clip you'd love to see? Make sure you let us know by leaving a comment. Want to share your views with the team and win prizes? Join our fan panel: https://tinyurl.com/yayv8ktg This is a channel from BBC Worldwide, trading as BBC Studios, who help fund new BBC programmes.Service information and feedback: http://bbcworldwide.com/vod-feedback--contact-details.aspx