They thought monopolies would keep competition alive.
Answer: Air brakes
Explanation: The introduction of air brakes by George Westinghouse marked one of the most important safety upgrades in railroad travel. The air brakes which is powered by compressed air connected to the braking cylinders which automatically serves air to the brake pipes once the brake pressure falls. This automatic airbrakes offered an escape from the inefficient and manual brake system usually employed before it's invention whereby brakemen are charged with the task of controlling the braking system using the brake wheel in other to alt the train's movement. This manual method is both tedious and unsafe.
Answer:
imma go to Georgia Tech, The tradeoffs would be getting a better chance to work at NASA, The incentive that persuaded me was the chance to work at NASA,The opportunity costs are not much money, no millitary experience, an not much freetime
Answer:
The Muslims were allowed to freely practice their beliefs in Dar al Islam.
Explanation:
Dar al Islam was the place where Muslims used to worship to Allah freely. The were given freedom to practice their cultural and religious beliefs. The place was owned by non believers yet they were so inspired by the Muslim beliefs that they were not able to stop them from practicing it. They were inspired by their firm faith in Allah in every situation and things always turned best in favor of Muslims.