Charles Proteus Steinmetz (April 9, 1865 - October 26, 1923) was a German-American mathematician and electrical engineer. He was called the "forger of thunderbolts," being the first to create artificial lightning in his GE football field-sized laboratory and high towers, using 120,000 volt generators. He erected a lightning tower to attract lightning and studied the patterns and effects of lightning hits on tree bark and in a broken mirror, resulting in several theories and ideas (like the effect of lightning on plant growth and A/C electric poles). He died in 1923 at the age of 58. Guglielmo Marconi (April 25, 1874 - July 20 1937) was an Italian inventor, known as the father of long distance radio transmission and for his development of Marconi's law and a radio telegraph system. Marconi is often credited as the inventor of radio, and he shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun. He died in 1937 at age 63, following a series of heart attacks. As a tribute, all radio stations throughout the world observed two minutes of silence on the next day.