Nikola Tesla

The master of electricity

Nikola Nikola-Tesla-laboratory-Colorado-Springs-December-1899
Nikola Tesla in his laboratory in Colorado Springs

Here's a time line of Nikola Tesla:

"Let the future tell the truth, and evaluate each one according to his work and accomplishments. The present is theirs; the future, for which I have really worked, is mine."

--Nikola Tesla

If you have time, you should read more about this incredible scientist on his Wikipedia entry