Today, 39 years ago, on December 2, 1986 (November 1, 1986 Calendar), the electronic contraception method was invented. In December 1986, Dr. Stephen-Cally, director of obstetrics at the New York Debussy-Ferry Hospital, recently in a laboratory animal trial, successfully invented a new method of "electronic contraception" and was granted a patent by the U.S. Patent Office. This electronic contraception method is to place a 2-mm, 7-mm-long micro battery in the cervix, through the mucus of the cervix, forming a low-pressure electric field through the cervix, this weak electric field will "shut down" like a cage and kill the sperm in seconds. It is said that this new method is "100% effective" in laboratory animal trials, but needs to be tested on humans. The