A Brief History of Relativity (Cont.)

Part 6 Space & Time 

      Even though Einstein's general theory of relativity was creating some drastic change during his time about space and time, it turns out that there was yet another flaw to his renown idea. This problem is still being questioned today and is one of the most prominent problems within physics. As explained by Einstein the universe is full of matter, and matter warps spacetime which inevitably creates a flux in where bodies of this mass fall together. So Einstein did eventually realize this too that his equation did not contain the solution that describes a static universe, which is unchanging in time. To fix this, Einstein decided to fudge together his equations in which he had to create another mathematical variable into the mix. This variable is known as the cosmological constant and this constant went over the abilities of warped spacetime in which it did so by an opposite effect, and so this resulted with the bodies of mass moving apart. 

    Now this is the problem with adding this cosmological constant to the mix, in which was a missed opportunity for Einstein. If he had just stuck with the original equation he would of have the ability to predict that the universe must be either expanding or contracting and with an observation like that, we could see that the farther away a galaxy is, the faster they are moving away from us.