Posts Tagged ‘measure’

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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The Sun’s core spins four times faster than its surface

For decades, astronomers have wondered if the sun’s core spins faster than its surface, and now, thanks to an international team of scientists, they have the answer: the interior makes a complete rotation in one week, which is 3.8 times faster than the middle and outermost layers. Researchers from the French National Center for Scientific […]

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‘Puffy planet’ has the same density as Styrofoam

A newly discovered exoplanet with the density of Styrofoam could be useful for assessing planets beyond our solar system for signs of life.

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