Posts Tagged ‘space-time dimension’

Einstein in four *spatial* dimension

Why many physicists chose to define the universe in terms of the physical properties of a time or space-time dimension instead of four *spatial* dimensions is puzzling because, as was shown in the earlier article "Defining time" Sept 20, 2007 there is no observational evidence supporting it having physical properties.  Gravity and space-time But even […]

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Should we allow imagination to define physics?

Should we let imagination define our reality?  If so how much should we allow science to dependent on it? Most if not all explanatory models of reality rely to some extent on ones imagination because they use unobservable quantities to support them.   "IMAGINATION IS MORE IMPORTANT THAN KNOWLEDGE" For example Einstein used the concept […]

Dark Energy and Ockham’s razor

Ockham’s razor is the idea that, in trying to understand something, getting unnecessary information out of the way is the fastest way to the truth or to the best explanation. For example Einstein’s General Theory of Relativity is based on the relative simple concept of a curvature in a space-time metric.  Granted the math required […]

Finding Dark Matter

Here is an amazing fact: The matter we know that makes up all stars and galaxies only accounts for 5% of the content of the universe. The rest is called dark matter.  It does not interact with the electromagnetic force and therefore does not absorb, reflect or emit light, making it extremely hard to spot.  […]

Dark Matter as a field property of space-time

In 1933 Fritz Zwicky a Swiss astronomer, was trying to measure the mass of a galactic cluster using two different methods. First he tried to infer it from the rational speed of the galaxies around the center of the clusters.  Just like kids on a merry-go-round have to hold on to avoid being ejected, galaxies […]

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