Did Nikola Tesla ever help george ferris?

"margin-bottom:.0001pt;text-align:justify;line-height:normal;">The

Chicago World's Fair, was held in Chicago in 1893. The electricity

was powered by the system of Nikola Tesla. He had an exhibition of

his inventions. World's first Ferris wheel was designed to

"out-Eiffel Eiffel" and thrilled 20,000 people a day starting on

June 18. That Ferris wheel (also called the "Chicago Wheel",

designed and built by George Ferris.