A man of [what could be] 700 patents and desires for a more humane, equal global community; Nikola Tesla was one of the greatest contributors and activists humankind has ever experienced.  Unfortunately/fortunately, his stature was inequitable to that of fellow scientist Thomas Edison, and instead, Tesla was mostly ostracized while alive and obscured afterwards.  Regardless of his prestige, or lack there of, Tesla's contributions (ranging from AC motors to the blade-less turbine) are still being uncovered and utilized to this day.  Here's to Nikola, may we continue to benefit from his existence.