I've been reading books on Nickola Telsa and have noticed many differences in "storys" of what he had accomplished. Of these one that I would like to know is what the true voltage was of tesla's highest power experiment in Colorado Springs? I have seen in one book that it was 12 million volts. In another book it was 20 million. in yet another it was 100 million. All of these books had said the arc length was 135 feet.