Astrophysics

No. Black holes do not emit light, but it is theoretically possible to see the distortion of starlight, called gravitational lensing, as well as the black area of the accretion disk against a background of stars. However, black hole event horizons are fairly small and are so far away that we could not detect the lensing even with our most powerful telescopes. We do, however, have some images of accretion disks around the supermassive black holes of distant galaxies.

I believe everyone should be able to discern a certain amount of clarity from a rudimentary understanding of the varied cosmological theories, and decide for themselves which version supports their ideology for their existence in reality.

However to be taken seriously within the scientific community, one needs a doctorate (a lot of years of school) in one of the specialized fields of study for cosmology.

Hawking radiation is a form of energy that is theorized to be emitted by black holes. It is named after physicist Stephen Hawking, who proposed its existence due to quantum effects near a black hole's event horizon.

If you can send another object into a black hole you can put garbage through a black hole.

But bear in mind, we have no conveniently located black holes, so shipping costs are going to be very high.

Actually, to quite an extent, they do. Whenever enough material in interstellar space accretes together until it has an appreciable mass, and thus attracts even more material to itself, you have the beginning of either a planet or a star. A planet if it is largely solids, or an amount of gas insufficient to make it a star, or a star if it is mostly hydrogen, and has enough of it to cause nuclear fusion at the center.

Black holes are found throughout the universe, typically at the centers of galaxies. They are created when massive stars collapse under their own gravity. Black holes have immense gravitational pull and can distort spacetime around them, making them fascinating objects for study in astrophysics.

I don't know of any specific term used to refer to a black hole explosion.

Note: The concept of an exploding black hole is still hypothetical. In 1974, Stephen Hawking realized that, owing to quantum effects, black holes should emit particles with a thermal distribution of energies - as if the black hole had a temperature inversely proportional to its mass. In addition to putting black-hole thermodynamics on a firmer footing, this discovery led Hawking to postulate 'black hole explosions', as primordial black holes end their lives in an accelerating release of energy. However, these explosion merely describe a marked increase (or burst of energy) in the emission of Hawking radiation; and the speed of such evaporation is still very theoretical.

The final stage of the evaporation for a black hole has been described to proceed so rapidly that it would end in a tremendous explosion. How powerful this explosion would be depends on how many different species of elementary particles there are. If, as is now widely believed, all particles are made up of perhaps six different kinds of quarks, the final explosion would have an energy equivalent to about 10 million one-megaton hydrogen bombs.

On the other hand, an alternative theory of elementary particles put forward by R. Hagedorn of the European Organization for Nuclear Research argues that there is an infinite number of elementary particles of higher and higher mass. As a black hole got smaller and hotter, it would emit a larger and larger number of different species of particles and would produce an explosion perhaps 100,000 times more powerful than the one calculated on the quark hypothesis. Hence the observation of a blackhole explosion would provide very important information on elementary particle physics, information that might not be available any other way.

Gamma radiation emitted by black holes can originate from the accretion disk around the black hole or from high-energy processes within the black hole itself. This radiation can escape the gravitational pull of the black hole and travel through space, potentially affecting nearby objects or being detected by telescopes as a signature of black hole activity.

We can do a quick calculation using Newtonian gravity (which is sufficient here since we are far away from the black hole). We do need some data:

-The distance between the Sun and the centre of our Galaxy is 2.5 x 10^20 meters. Since the distance between the Earth and Sun is completely negligible at this scale we can use this as the distance between the Earth and the black hole.

-The mass of the Earth is about 6 x 10^24 kilograms.

-The mass of the central black hole is about 8 x 10^36 kilograms.

We can now use the following formula:

F = G * m_earth * m_black_hole / distance^2

Where G is some constant named the gravitational constant. If we use this formula we arise at a force of about 7.7 x 10^20 Newtons. This is the force the black hole exerts on the Earth, and it is also the force the Earth exerts on the black hole.

The entropy of the universe must increase during a spontaneous reaction or process. This is in accordance with the Second Law of Thermodynamics, which states that the total entropy of an isolated system can never decrease over time.

The idea of an astronomical body so massive that even light could not escape (now known as the black hole) was first put forward by geologist John Michell in a letter written to Henry Cavendish in 1783 of the Royal Society.

Short-lived black holes are theorized to form when cosmic rays of extraordinarily high energy collide with particles in the atmosphere. They might also be synthetically created in a particle collider. It's also possible they were created due to favorable conditions in the early universe, although the ongoing existence of such is still an open question.

No - Like black holes, white holes have properties like mass, charge, and angular momentum. Consequently a white hole will attract matter like any other mass. However any objects falling towards a white hole would never actually reach the white hole's event horizon, as it is the reverse of a black hole. In example, while a black hole can be entered from the outside, nothing, including light, has the ability to escape. Conversely while a white hole attracts matter, nothing, including light, has the ability to enter from the outside (e.g. matter and light have the ability to escape).

Note: The prevailing hypothesis is that there are no lone white holes. Rather a white hole, in general relativity, is a hypothetical region of SpaceTime which appear in the theory of eternal black holes. In addition to a black hole region in the future, such a solution of the Einstein field equations has a white hole region in its past. However, this region does not exist for black holes that have formed through gravitational collapse, nor are there any known physical processes through which a white hole could be formed.

Black holes are blacker than black ink because they have such a strong gravitational pull that not even light can escape from them. This means that they do not reflect, emit, or scatter any light, making them appear completely black. In contrast, black ink absorbs some light but also reflects some, giving it a different appearance.

Transition B produces light with half the wavelength of Transition A, so the wavelength is 200 nm. This is due to the inverse relationship between energy and wavelength in the electromagnetic spectrum.

Black holes emit a form of energy called Hawking radiation, which consists of particles being emitted from the black hole's event horizon. This radiation causes the black hole to slowly lose mass over time.

The fourth dimension near black holes is spacetime, which is distorted due to the immense gravity they possess. This distortion results in phenomena like gravitational time dilation and space curvature, which play a significant role in the behavior of objects and light near black holes.

The standard particle model is a theory in particle physics that describes the fundamental particles and forces that make up the universe. It includes elementary particles such as quarks, leptons, and bosons, as well as the interactions between them through fundamental forces like electromagnetism, the weak force, and the strong force. This model has been successful in explaining and predicting a wide range of phenomena observed in experiments.

Within our own solar system, an object known as 90377 Sedna, has the longest orbital period, which is equivalent to 11,400 years. It has a highly eccentric orbit, with a distance of 76AU from the sun at it's perihelion and 960AU at it's aphelion.

He stated that Black Holes emit heat because they are nothing more than collapsed stars that suck in particles and then they themselves are destroyed. After doing so the object that was sucked into the black hole is sent back into its own universe, instead of being transported to a parallel universe. Since energy is needed for these processes it is necessary for light and Light=Heat. It all has to do with light wavelength and the conversation of matter.

I don't think so. I never heard of a black hole with such a name.

I think that 4-d here may mean four dimensional.

There are theories about four (space) dimensional stars and black holes.

Unfortunately the question is not clear enough for me to answer.

Perhaps that questioner may like to make the question clearer.

Yes, energy can escape from a black hole through Hawking radiation, which is a process where black holes emit radiation and lose mass over time. However, the escape of energy through Hawking radiation is very slow and weak in comparison to the massive gravitational pull of the black hole.

In semiconductors, a light hole and a heavy hole refer to different energy states that are created in the valence band. Light holes have lower effective mass and higher mobility, while heavy holes have higher effective mass and lower mobility. These terms are important in understanding the electronic band structure of semiconductors and their properties.

Black holes are the remains of a giant star that has had its gravity collapse upon itself. Black holes suck in any matter that gets within it's gravitational range and smashes it down into tiny particles. It goes inside the black hole of it and is never seen again. Scientists do not know what happens after the matter is sucked in because black holes do not illuminate any light (Its gravity is so strong it pulls in light around it that would normally reveal it). Black holes are identified by a check list of characteristics. (Super massive, Rogue, etc)