A huge amount has been written about the prodigal genius of Nikola Tesla and so there may not be a great need to say more here about his life, his brilliance, his vision, and his achievements.
But in brief, Tesla was an extraordinary, intuitive, creative genius who, among a great deal else, invented alternating current (which powers the the modern world) and radio (for which Marconi is often falsely given credit).
Contemporary biographers of Tesla have deemed him “the father of physics”, “the man who invented the twentieth century”, and “the patron saint of modern electricity”.
Much of his life’s work was about providing for the world free (i.e. zero-cost) energy, which Tesla envisaged would be broadcast wirelessly through the air or through the Earth itself with no need for powerlines – but despite years of trying, he never obtained the funding to achieve this, one of his dreams.
It has long since been rumored that he invented or developed a significant number of electrical and electronic devices which were decades ahead of their time and would have been of special interest to US military and intelligence circles. Around 300 patents were issued to Tesla in 25 countries, many of them major and far-reaching in concept.