Chinese man keeps himself alive for 13 years with HOMEMADE dialysis machine Three times a week, Hu Songwen sits on a small toilet in his home in a rural east China town and fires up his homemade dialysis machine. Hu, who suffers from kidney disease,.
There were three main types of poisonous gas used in trench warfare: chlorine, phosgene and mustard gas. Although it could kill, chlorine gas was easy to detect. Mustard gas was first used by the Germans in 1917 and it was incredibly effective.