12. Images CC from flickr
http://www.flickr.com/photos/swimparallel/
old and new http://www.flickr.com/photos/sovietuk/
sheep http://www.flickr.com/photos/nataliedowne/
helphelp http://www.flickr.com/photos/indiepoprockjesse/
twitter http://www.flickr.com/photos/mfilej/
locked door http://www.flickr.com/photos/ignacio_conejo/
helping hand http://www.flickr.com/photos/kubina/
resistance http://www.flickr.com/photos/theamarand/
submarine http://www.flickr.com/photos/x-ray_delta_one/