What major paradox arises because quantum mechanics says information cannot be destroyed, but black holes seem to destroy it?

What major paradox arises because quantum mechanics says information cannot be destroyed, but black holes seem to destroy it?

Chapter 1

The anatomy of a black hole

Chapter 2

The four cosmic families

Chapter 3

Extreme physics and spaghettification

Chapter 4

Photographing the invisible

Ch 3 · Extreme physics and spaghettification
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hue I never realized black holes grow by shredding stars and eating each other.

Jul 20

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hue Black holes colliding actually make a weird chirp like neutron stars do.

Jul 20

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hue Sagittarius A* Spaghettification

Step to the edge where the gravity bends, Stretched like a thread as the universe ends.

Jul 20

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hue The slow leak of energy

Jul 20

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The slow leak of energy

hue Black holes are not completely black; they slowly evaporate by emitting quantum particles over time.

Jul 20

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Fun Fact

Slow evaporation: A stellar black hole takes about 10 to the power of 67 years to completely evaporate through Hawking radiation.

Jul 20

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When time stands still

hue Gravity is so strong near a black hole that it slows down the passage of time.

Jul 20

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Glossary
spaghettification (noun)
The stretching of an object into a long, thin shape by extreme gravitational forces. Stephen Hawking popularized the term in 1988 to describe an astronaut falling into a black hole.

Jul 20

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Quiz

How would time appear to pass for someone watching you approach a black hole?

Jul 20

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Gossip

Would you visit a time-dilating black hole?

Jul 20

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Singularity Spaghetti
BETA

hue Sort different types of black holes to discover how massive Sagittarius A* really is.

Jul 20

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hue When time stands still

Jul 20

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Quiz

If you fell into a black hole, how would your own watch seem to tick to you?

Jul 20

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hue The ultimate cosmic noodle machine

Jul 20

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Quiz

What happens to a black hole at the very end of its incredibly long evaporation process?

Jul 20

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hue The final destination of matter

Jul 20

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Quiz

What is the slow emission of quantum particles from a black hole called?

Jul 20

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Quiz

What is the playful scientific term for the stretching of an object falling into a black hole?

Jul 20

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Quiz

What physical force causes the stretching effect known as spaghettification?

Jul 20

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Quiz

Who discovered that black holes can slowly evaporate by emitting radiation?

Jul 20