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Nikola Tesla
Nikola Tesla was a Serbian-American engineer and inventor whose revolutionary alternating-current (AC) system powers the modern world, yet he died penniless after being outmaneuvered by Thomas Edison.
PeopleBlaise Pascal
Blaise Pascal was a 17th-century French prodigy who turned a childhood obsession with geometry into a lifetime of breakthroughs—from inventing the mechanical calculator to co-founding probability theory—while wrestling with the deepest questions of faith and philosophy.