Henry Bessemer was an inventor and engineer from England. Not only did he develop the Bessemer process for steel manufacturing, but he also designed a machine that could m â¦ ake bronze powder. What did Henry Ford invented?
The most effective form of reversible birth control after abstinence is an intra-uterine device (IUD), closely followed by hormonal contraception, which can come in the form of a pill, patch, implant, or insertable ring. IUDs have a failure rate of less than one percent in most controlled studies.
The effectiveness of a birth control method is defined in two ways: 1  Use Effectiveness: How well a birth control method works in âtypical useâ, taking into consideration human error and other non ideal factors.