( Germans know them as Röntgenstrahlen . ) According to the book Die Großen Deutschen ( Great Germans ) , Röntgen told his wife : “ People will say : ‘ Röntgen has gone mad . ’ ”
( Germans know them as Rontgenstrahlen . ) According to the book Die Großen Deutschen ( Great Germans ) , Rontgen told his wife : “ People will say : ‘ Rontgen has gone mad . ’ ”