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Sir Isaac Newton's Theory of Motion
Sir Isaac Newton created the following theory. To every action there is always an equal and opposite reaction: or the forces of two bodies on each other are always equal and are directed in opposite directions. Whatever draws or presses another is as much drawn or pressed by that other. If you press a stone with your finger, the finger is also pressed by the stone. If a horse draws a stone tied to a rope, the horse will be equally drawn back towards the stone. The rope will draw the horse as much towards the stone, as it does the stone towards the horse, and will obstruct the progress of the one as much as it advances that of the other. The changes made by these actions are equal, not in the velocities but in the motions of the bodies. This is only true, however, If the bodies are not hindered by any other variables. As the motions are equally changed, the changes of the velocities made toward contrary parts are proportional to the bodies. This law takes place also in attractions. This Law means that all forces are interactions and there is no such thing as a unidirectional force. If body A exerts a force on body B, simultaneously, body B exerts a force of the same magnitude. This theory is important to renaissance because many simple assembly line machines made around the renaissance era were based on this theory. If Newton had not discovered this, the important assembly line could not have been created. Today, this theory has to be thought of when constructing buildings, or making machines. On the show Mythbusters they made a cannon that fired a cable. The recoil from the cannon was so severe when they first fired it, that the cannon flew 20 feet backwards because of Newton’s law. The law has to be thought about carefully in these situations. This law is one of the most common laws talked about and it is a very important theory that affected the renaissance and the modern world.
This is a funny picture demonstrating Newton's law. When the gun is fired, the explosive force will propel the boat across the water.
This is a picture of the theory's creator, Sir Isaac Newton
