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Black Holes – Mathematically Impossible?

September29

blackhole
Black Holes — the most dense objects in the universe that do not even let light escape — do not exist, a physics professor in the US has claimed.

Laura Mersini-Houghton at University of North Carolina at Chapel Hill in the College of Arts and Sciences, has proven, mathematically, that black holes can never come into being in the first place.

For decades, black holes were thought to form when a massive star collapses under its own gravity to a single point in space. The black holes pit two fundamental theories of the universe against each other. Einstein’s theory of gravity predicts the formation of black holes but a fundamental law of quantum theory states that no information from the universe can ever disappear.

Efforts to combine these two theories lead to mathematical nonsense, and became known as the information loss paradox. In 1974, physicist Stephen Hawking used quantum mechanics to show that black holes emit radiation. Since then, scientists have detected fingerprints in the cosmos that are consistent with this radiation, identifying an ever-increasing list of the universe’s black holes.

Mersini-Houghton agrees with Hawking that as a star collapses under its own gravity, it produces Hawking radiation. However, in her new work, she showed that by giving off this radiation, the star also sheds mass. So much so that as it shrinks it no longer has the density to become a black hole.”

Read the full article from firstpost.comClick here for a timeline of Black Hole discoveries

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10 x 9 x 8 + (7 + 6) x 5 x 4 x (3 + 2) x 1 = 2020

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]

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