Exactly 153 years ago on this date, July the 10th, was born one of the greatest inventor of our times – Nikola Tesla, whose revolutionary contribution in the fields of electricity and magnetism has changed the way we lead our lives today. Without Tesla’s work on alternating current, power transmission and distribution, and rotating magnetic filed among many others, no radio, no television, no electrical device that we use today would have existed. If you haven't heard about this extraordinary genius, I wouldn’t be surprised. History has forgotten this hero. Thankfully, Google hasn’t. Google’s home page logo today is in honor of this inventor.
The following video will give you a good introduction of Nikola Tesla.