Nikola Tesla was a Serbian-American inventor, electrical engineer, mechanical engineer, physicist, and futurist. He was widely known for his contribution to the creation of devices that operate on alternating current, multiphase systems and the motor will make a so-called second phase of the industrial revolution. Tesla has received universal recognition as the outstanding electrical engineer and inventor. This book describes the experiment, which required a thick copper tube, about a foot long, vacuum, and Roentgen’s rays. What happened with it? Read the book to know!