*RARE BOOK* Tesla coils create electrical magic. Ordinary wall current is transformed into spectacular displays of man-made lightning. Invented by Nikola Tesla in the late 1800s, these fascinating devices have captivated many. However, much of the information about them has been lost to time and neglect. Did you know that Tesla coils can transmit electrical energy? Were you aware that the Tesla coil is the grandfather of the modern radio transmitter? Would you be surprised to learn that a Tesla coil resides inside a common household device?