Monthly Archives: February 2014

The Fundamental Forces of Nature and the Weak Force

Of the four fundamental forces (gravity, electromagnetism, strong nuclear force and weak nuclear force), the weak force is the most enigmatic. Whereas the other three forces act through attraction/repulsion mechanisms, the weak force is responsible for transmutations, i.e. changing one … Continue reading

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What Is Hydrostatic Equilibrium?

Source: Hydrostatic Equilibrium on Wikipedia A volume of fluid, which can be a gas or a liquid, is said to be in hydrostatic equilibrium when the downward force exerted by gravity is balanced by an upward force exerted by the … Continue reading

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What is the Eddington limit/luminosity?

Source: Eddington Limit on Wikipedia The Eddington limit, also called the Eddington luminosity, is the point at which the luminosity emitted by a star or active galaxy is so extreme that it starts blowing off the outer layers of the … Continue reading

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Star cluster R136 bursts out in 30 Doradus

Source: Oct. 20-27, 2009: Hubble’s Festive View of a Grand Star-Forming Region (30 Doradus Nebula/Tarantula Nebula/NGC 2070) Hundreds of brilliant blue stars wreathed by warm, glowing clouds. The festive portrait is the most detailed view of the largest stellar nursery … Continue reading

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