Tuesday, December 16, 2008

Was Einstein's "Greatest Mistake" Right After All?

The old story about Albert Einstein's erroneous cosmological constant used to sound something like this:

Once upon a time in 1917, the young Einstein made his most notorious mistake. He needed to figure out why the pull of gravity didn't cause the universe to collapse. His equations kept saying the universe should have ended long ago, but every observation proved that it didn't. As a result he introduced a concept a called "the cosmological constant" into his equations to counter the effect of gravity and keep the universe static. The problem was that the constant was bunk and Einstein knew there was no evidence for it, other than the fact the universe still existed.

Then in 1929 Edwin Hubble discovered that the universe wasn't static but actually expanding. The repulsive force from the Big Bang over 15 billion years ago countered the force of gravity and Einstein's fudged cosmological constant was discarded forever. Thus the universe lived happily ever after.

Recent observations have added an interesting epilogue to the story which shows that some kind of cosmological constant may yet exist after all.

It all began in 1998 when a team of astronomers at the Lawrence Berkeley National Laboratory made the inconvenient discovery that the universe actually accelerating while it expands. This isn't supposed to happen. Issac Newton's laws of momentum state that an object can only accelerate when being pushed by an outside force. The catch is that without Einstein's constant, there isn't supposed to be any outside force any more. The Big Bang sent everything in the universe flying apart and the force of gravity was supposed to gradually slow that expansion. Instead, things seem to be speeding up.

There has to be some massive unseen force throughout the cosmos making it expand ever faster. Physicists call this exotic force "dark energy" because while it can't be seen directly, its effects can be observed. Scientists know still don't know what dark energy actually is or where it comes from, but they've been measuring its effects on distant galaxies and stars. Recent measurements made using NASA's Chandra X-ray Observatory show that dark energy has been a constant force throughout the history of the cosmos.

A constant force in the cosmos? A cosmological constant perhaps?

1 comment:

  1. Logically complete cosmological concept. /due to lack of knowledge of the English language was not able to correct the translation Implemented by Google/
    In order to present the unlimited space originally Elementary:
    1. variety (homogeneous) сompleted - enough to postulate the presence in it of two elements with SIMPLE and COMPLEX /closed systematically manifested the essence/
    2. heterogeneous completed - enough to postulate the presence in it of one more element - the Most High and Almighty God - with open exhibited systemic nature.
    Not hard to imagine that even at the lowest possible deployment intangible components the nature of God - the Spirit of God - for the level of the original downwardly directed continuous deployment the material component of the essence of God, there is a curtailment of SIMPLE and COMPLEX /i.e.. their decay occurs due to blocking of origin upwardly directed constantly deploy components of their intangible essences/, as the maximum possible heterogeneous nature of God to the minimum possible number of cell uniformity (№1h) and God on the basis of the material components of the minimum possible №1 deploys heterogeneous to its essence as possible numerical element uniformity (№2H). The process of clotting №2H begins at a certain point in time God begins at the end of its deployment. Curtailment of the Spirit of God to the level of initial deployment again unfolds №1H - God's potential for transformation into a №1H in №2H and №1H in №2H limitless!