The doctor is intrigued by a black box which was the size of a coffin and almost three feet long. The top of the box was open and displayed the numerous colorful wares and silver tubes inside it. The sheer complexity of the box intrigued the doctor to know more about it. To add to the Doctor’s curiosity was his strange patient, who was caught up so excitedly with the box that he behaved rather strangely.

His deft handling of the innards of the box, his enthusiasm, and his rapt attention had made the doctor inquisitive about what he was up to. The patient’s attempt was to create a sound machine that would allow humans to hear the high-pitched voices otherwise inaudible to the human ear. The “strange patient” offered to satisfy the curious mind of the doctor by explaining the entire theory behind his innovation of the sound machine.