Edward Dean Adams, a primary investor for the Niagara Falls project Image added March 1, 2015 - 12:18 AM
Wilhelm Röntgen, the physicist credited with the discovery of x-rays Image added March 1, 2015 - 12:18 AM
Tesla entertains Fritzie Zivić, one of the fighting Zivić brothers of Pittsburgh Image added November 25, 2010 - 2:00 AM
Mark Twain participating with experiment as Tesla watches from behind Image added November 25, 2010 - 2:00 AM
Mark Twain and Joseph (“Jo”) Jefferson in Tesla's South Fifth Avenue laboratory, 1894 Image added November 25, 2010 - 2:00 AM