The role of men as it is stated in the society throughout the centuries is to protect the native land and family and find means to support his woman and children. Here is no wonder that the behavioral pattern of men is more aggressive than that of women. All famous creators of weapons and other means of destruction are men. It does not mean, however, that women are not involved in the sphere of inventions at all, it is just that there inventions are more peaceful and are aimed at making the life more comfortable rather than at destroying it. The constructive abilities of some women have brought s bunch of useful innovations to the world.