THE SECOND GROUP OF INVENTIONS:

The second group of nowadays inventions are the inventions that has no negative effects but its uses during the period of the reappearance of the holy Imam (May our souls be sacrifice for him) has elapse like medical instruments or some war equipments which shall be used in a justified wars.

This type of instruments shall seize to exist because there is no need for its existence in the midst of the society. It is clear that by the time when the entire inhabitants of the world are over take with good health and everyone enjoyed his soul and body health wise, there shall be no need for destructive equipments or medical equipments.

Then by the time when there is no illness to neccessitate needs for medical equipments, those equipments shall be set aside.