Nikola Tesla Colorado Springs Timeline Important moments and events related to Tesla's time in Colorado May 17th, 1899 May 23rd, 1899 June 15th, 1899 January 13th, 1900 June, 1904 Front view of Nikola Tesla's Colorado Springs Experimental Station. Tesla's Colorado Springs lab exterior showing 2nd suspended ball. Tesla's assistant ready at the controls of the Colorado Springs Experimental Station. Massive streamers issuing from the extra coil of Tesla's Colorado Springs oscillator. Colorado Springs Experimental Station capacitor bank. Nikola Tesla seated inside his Colorado Springs oscillator. 1899 Experiments Begin In Colorado June 15th, 1899 The first experiments in Colorado Springs Experimental Station were performed. Tesla records his initial spark length at five inches long, but very thick and noisy. Pagination Previous Previous entry Next Next entry Within the Universe Books Books written by and about Nikola Tesla. Documents Nikola Tesla documents, files and papers. Quotes Profound and insightful quotes by Nikola Tesla. Patents Nikola Tesla held around 200 patents worldwide. Articles Nikola Tesla in the press. Images Nikola Tesla image and photo library. Landmarks Locations related to Nikola Tesla. Letters Letters to, from and about Nikola Tesla. Movies and TV Nikola Tesla on the screen.