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randa177
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We ususally find the age of the universe : T=1/H , is this true for all geometries of the universe,,, say for example flat universe with (lamda) = 0
Some would argue that some observations are also inconsistent with the Mainstream model, Extragalactic Radio Sources and the WMAP Cold Spot:Wallace said:In particular it does in fact turn out that the age of the Universe in the current best fit model is very close to 1/H (though this only applies at this point in time), and therefore it is claimed that this is perhaps evidence for simple models, such as constant expansion (no accel or deceleration) which also predicts that the age is 1/H. The problem is that the observations that constrain the model that predicts the age and completely inconsistent with linear expansion!
To create the magnitude and angular size of the WMAP cold spot requires a ~140 Mpc radius completely empty void at z<=1 along this line of sight. This is far outside the current expectations of the concordance cosmology, and adds to the anomalies seen in the CMB.
Garth said:The observation exists, and as you say it needs more work, but it would give a false impression if we said that there were no problems with the present understanding of the expansion history of the universe and the Age derived from the Mainstream model.
yogi said:Hitler used to burn books and condemn those who raised challenges to the establisment
the idea that we have to cram down the majority view to every newcomer who poses a query is a disgrace to science.
Wallace said:And by the way,"[URL lose[/URL]
The T=1/H formula, also known as the Hubble Time, estimates the age of the universe to be approximately 13.8 billion years old. This is based on the current rate of expansion of the universe, known as the Hubble Constant (H), which is about 70 kilometers per second per megaparsec.
The flat geometry of the universe refers to the overall shape and curvature of space. According to the T=1/H formula, a flat geometry is necessary for the universe to have a finite age. If the geometry were curved, the age of the universe would be infinite.
The T=1/H formula is based on the Big Bang theory, which states that the universe began as a singularity and has been expanding ever since. The formula takes into account the expansion rate of the universe and extrapolates backwards to estimate the age of the universe at the moment of the Big Bang.
While the T=1/H formula is widely accepted by scientists, it is not the only way to estimate the age of the universe. Other methods, such as measuring the cosmic microwave background radiation or studying the ages of the oldest stars, also provide valuable insights into the age of the universe.
The T=1/H formula can provide some insight into the future of the universe, as it takes into account the expansion rate. However, there are other factors, such as dark energy, that may impact the future of the universe and cannot be accounted for in this formula.