Part 1: A Theory of Everything

The Holy Grail of Theoritcal Physics is the notion of a Grand Unified Theory to unify the four forces in Nature. A theory which can explain all four forces as manifestations of a single force or entity.

Energy can neither be created nor destroyed

The most fundamental of all the Laws of Physics are the laws of conservation. Conservation of Energy, conservation of momentum, for every action there is an Equal and opposite Reaction. It's all relative! When you bounce a ball off of a wall, measure the force exerted by the ball on the wall and it will always be equal and opposite the force that the wall exerted on the ball. What force did you think caused the ball to bounce off the wall and come back? When you push something it pushes you back the exact same ammount.

Force = Mass * Acceleration, so if the masses are different the accelerations will be different according to the equationl. You have to push heavier objects harder to get them to move the same ammount and if a heavy ball hits a light ball the light ball will experience a higher acceleration as a result of the force from the impact and because it has a smaller mass it will be pushed much harder and thus further than the bigger heavier ball. Before Albert Einstein, Mass and Energy were always calculated seperately until the Mass Energy Relationship was found.

What is important to note about this is that the center of mass of any isolated system will not accelerate unless an outside force is applied. Nothing happens unless it is relative to something else, anyone who has studied Einstein's Theory of Relativity knows that. Nothing happens unless the same thing happens in the opposite direction, ANYTIME there is a force it is mirrored back by the object which the force acts upon.

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