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.
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?
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.
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.
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.
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.
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.
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?
Xylic the janitor has the black hole key in Six Flags Fun Park for the WII.
You can't see them.
You can travel from one place to another , it depends where the black hole starts and ends . you also need a worm hole key
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.
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
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.
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.
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.
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.
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.