Nikola Tesla - Free-Energy Devices

372 INVENTIONS OF NIKOLA TESLA.investigation appears to possess a peculiar attraction, for there isno experiment or observation of any kind in the domain of thiswonderful science which Avould not forcibly appeal to us. Yetto me it seems, that of all the many marvelous things we observe,a vacuum tube, excited by an electric impulse from a distantsource, bursting forth out of the darkness and illuminating theroom with its beautiful light,is as lovely a phenomenon as cangreet our eyes. More interesting still it appears when, reducingthe fundamental discharges across the gap to a very small nuiu-FIG. 198.ber and waving the tube about we produce all kinds of designsin luminous lines. So by way of amusement I take a straightlong tube, or a square one, or a square attached to a straight tube,and by whirling them about in the hand, I imitate the spokes ofa wheel, a Gramme winding, a drum winding, an alternate cur-Viewed from a distance therent motor winding, etc. (Fig. 198).effect is weak and much of its beauty is lost, but being near orholding the tube in the hand, one cannot resist its charm.