![Tesla Universe classic Tesla coil](/sites/default/files/styles/default_extra_large/public/theme-images/hero-default.jpg?itok=iRr_gamG)
Nikola Tesla People
Relatives, friends and associates of Nikola Tesla
Wilhelm Röntgen
![Wilhelm Röntgen, the physicist credited with the discovery of x-rays](/sites/default/files/styles/default_large_watermark/public/people/rontgen-wilhelm/rontgen-wilhelm-001/rontgen-wilhelm-001.jpg?itok=TaSKnVKE)
Letters
Letter added April 23, 2018 - 9:26 AM
Dear Sir! You have surprised me tremendously with the beautiful photographs of wonderful discharges and I tell you thank you very much for that. If only I knew how you make such things! With the...