It spread through trainers and new innovations. Most popularly, the invention of the printing press.
His father tried shielding him from poverty. He did not want his son to see poverty and the bad conditions people there were living in at the time, especially in the countryside. He didn't consider his son seeing these things in his life would help him in his journey through life.
Answer:
Lebogang says that when you use a thick syringe to "drive" a thin syringe, you lose strength but gain distance. Jaamiah disagrees. ... This means that there is indeed a mechanical advantage, but a distance disadvantage.