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.
Spermicides aren't effective on their own as they must be at the cervix, not just somewhere in the vagina. TV doc's tips to find best birth control for you There is a growing interest in the search for spermicides of natural origin which can be used to coat condoms and can also be developed as gels.