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A keyhole looks black because there is no source of light inside the keyhole, and very little light gets into the hole from outside to illuminate it. Just as the bottom of the ocean, when you have no source of light, appears black to the human eye, until you use some source of light.

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What are the key differences between a black hole and a black hole, and how do these distinctions impact our understanding of these enigmatic cosmic phenomena?

It seems like there may be a typo in your question. Did you mean to ask about the key differences between a black hole and a star?


What happens in a black hole that makes the saying "what happens in a black hole stays in a black hole" true?

In a black hole, gravity is so strong that nothing, not even light, can escape. This means that whatever goes into a black hole is trapped inside forever, making the saying "what happens in a black hole stays in a black hole" true.


What does a white hole look like and how does it differ from a black hole in terms of appearance and characteristics?

A white hole is a theoretical concept in astrophysics that is the opposite of a black hole. While a black hole is a region in space where gravity is so strong that nothing, not even light, can escape, a white hole is a hypothetical region where matter and light can only escape and nothing can enter. In terms of appearance, a white hole would appear as a bright, glowing object emitting energy and matter, in contrast to the dark, invisible nature of a black hole.


What is the significance of the Penrose diagram in understanding the structure of a Schwarzschild black hole?

The Penrose diagram is important for understanding the structure of a Schwarzschild black hole because it provides a way to visualize the entire spacetime geometry of the black hole in a simplified and compact form. It helps to illustrate key features such as the event horizon, singularity, and the paths of light and particles inside the black hole. This diagram aids in studying the causal structure and properties of the black hole, making it easier to analyze and interpret complex spacetime phenomena.


What would a black hole look like from Earth?

From Earth, a black hole would appear as a dark, featureless region in space, surrounded by a glowing ring of hot gas and dust spiraling into it. The black hole itself would not emit any light, making it invisible to the naked eye.

Related Questions

How does pulsar become a black hole?

A pulsar will not become a black hole because they do not implode and that is one of the key features of a star becoming a black hole. a pulsar is highly magnetized and gives off a beam of electromagnetic radiation, when viewed from a distance it will look as though it is flashing.


What are the key differences between a black hole and a black hole, and how do these distinctions impact our understanding of these enigmatic cosmic phenomena?

It seems like there may be a typo in your question. Did you mean to ask about the key differences between a black hole and a star?


Where is black hole in six flags fun park Wii?

Xylic the janitor has the black hole key in Six Flags Fun Park for the WII.


Where in the sky do you look for the black hole?

You can't see them.


What black holes on spore are good?

You can travel from one place to another , it depends where the black hole starts and ends . you also need a worm hole key


Where is black hole key in six flags fun park wii?

In the Wii game "Six Flags Fun Park," the Black Hole key can be found by completing the "Black Hole Run" mini-game. This mini-game involves navigating a roller coaster track while avoiding obstacles to reach the key at the end. Pay attention to the layout of the track and use power-ups wisely to make it to the end successfully.


How did black holes get its name?

black hole got it's name because when look at a black hole, you only see black. also if you drop an item in the black hole the item is gone because there is a hole in there. so that's how black hole get's its name


Is there a chip in the key of a 1999 Mercury Sable?

In 1999 it may or may not have one. If it has a thick black head with the hole in the head of the key being offset, then it is probably a chip key. If the hole is in the center top of the key or completely metal then it is not a chip key.


Which is the F sharp key on the piano?

If you look at the black keys they are grouped in 2's and 3's. Now look at the group of 3. F-sharp is the black key in the group of 3 that is farthest left.


You have a 2000 ford ranger needing to replace the igntion switch how do you tell if you have a standard or one with a transponder key?

The hole in the black plastic head sometimes. If it has a transponder the hole is offset to one side and thick plastic. Non transponder usually has a thinner black head with hole in center top of key.


How do you replace lock cly key in a 1988 ford E-150?

look under steering column by the key there should be a little hole . Just stick a awl in the hole and turn the key to on position and pull out.


Can anything exist or materialise and manifest itself in the black hole and can a black hole become a star or planet?

Our sun is a black hole. Look at it during sunset. Look at it like a steriogram picture. You will see a black hole that appears. Then look at a picture of the Egyptian sun god RA. There is a sun with a whole in the middle during dusk. Look at the sun don't squint relax it will come with practice. 2 hours before sunset it is completely safe no high radiation uv rays.