Breezy+Space+Time

http://plus.maths.org/issue45/features/berman/gravity.jpg Einstein believed that space-time is curved, not flat. The best way to sum this up is to say **"matter tells spacetime how to curve, and curved spacetime tells matter how to move".** ** With this theory moons traveling around a planet are not doing so because of gravity, but because it’s surface has been deformed by a surface. To illustrate this, picture a mattress. On one side is a very heavy person, the other side is a small person. The small person will roll towards the bigger person, because the mattress is sunk in on that side. It has nothing to do with gravity, but with the surface on which you lie. But in order for Einstein’s theory to work, gravity needs to exist the same for all people, but gravity is not caused by space-time, it is a feature of space-time ([]). **
 * Before Einstein, **** Newton **** had a different view on space and time. **** Newton **** believed that space is separate from body, and time was something that passed uniformly. These are called absolute space, and absolute time ([]). **** Newton **** believed that the body is subject to the three laws of motion. The first law is that a body stays at rest, or continues in a straight line unless acted on by a force. The second law is simple F=ma, or force is equal to mass times acceleration. The third law is for every action, there is an equal opposite reaction ([]) **
 * http://www.johnpratt.com/items/docs/lds/meridian/2006/images/newton_laws.jpg : [[image:http://www.johnpratt.com/items/docs/lds/meridian/2006/images/newton_laws.jpg width="369" height="384"]] **