German Scientist Wilhelm Rontgen Invented X-Rays In 1895 Had An Immediate Imapact, Within 6 Months The London Royal Hospital Amongst Other Were Using X-Ray Machines To Find Out If And Where A Bone Is Broken. In WW1 This Was Usefull In Locating Bullets, Shrapnel And Shell Casings Within The Human Body. This Made Surgery Be Quicker And More Effective Which Prevented Infection, Which Saved Many Lives. In 1915 There Were Only 2 Mobile X-Ray Units In The British Army But By 1916 Most Casualty Clearing Stations And Hospitals Had X-Ray Equipment.