Asked By: Norman Edwards Date: created: Apr 30 2022

Are black holes getting bigger

Answered By: Antonio Hughes Date: created: Apr 30 2022

Hawking radiation

Some monster black holes in the universe are predicted to continue to grow up to perhaps 1014 M ☉ during the collapse of superclusters of galaxies. Even these would evaporate over a timescale of up to 10106 years.

Asked By: Oswald Scott Date: created: Jun 26 2022

Do black holes have a mass

Answered By: Keith Anderson Date: created: Jun 27 2022

A stellar black hole (or stellar-mass black hole) is a black hole formed by the gravitational collapse of a star. They have masses ranging from about 5 to several tens of solar masses. The process is observed as a hypernova explosion or as a gamma ray burst. These black holes are also referred to as collapsars.

Asked By: Thomas Rogers Date: created: Apr 19 2022

How much mass is needed to make a black hole

Answered By: Jake Ross Date: created: Apr 19 2022

In principle, a black hole can have any mass equal to or above about 2.2×10−8 kg or 22 micrograms (the Planck mass). To make a black hole, one must concentrate mass or energy sufficiently that the escape velocity from the region in which it is concentrated exceeds the speed of light.

Asked By: Bernard Rodriguez Date: created: Nov 17 2021

What did Einstein say about black holes

Answered By: Peter Morgan Date: created: Nov 18 2021

Black holes

In 1939 he published a paper that argues that a star collapsing would spin faster and faster, spinning at the speed of light with infinite energy well before the point where it is about to collapse into a Schwarzchild singularity, or black hole.

Asked By: Geoffrey White Date: created: Aug 31 2021

Is there a black hole near Earth

Answered By: Jordan Reed Date: created: Aug 31 2021

This list contains all known black holes relatively near the Solar System (within our Milky Way galaxy). To make it easier to compare distances, our nearest star aside from the Sun – Proxima Centauri – is about 4.24 light years away and our Milky Way galaxy is approximately 100,000 light years in diameter.

Asked By: Simon Edwards Date: created: Sep 07 2021

What is a white hole NASA

Answered By: Sebastian Bell Date: created: Sep 08 2021

In general relativity, a white hole is a hypothetical region of spacetime which cannot be entered from the outside, although matter and light can escape from it. In this sense, it is the reverse of a black hole, which can be entered only from the outside and from which matter and light cannot escape.

Asked By: Jesus Brooks Date: created: Sep 22 2022

Do wormholes exist

Answered By: William Harris Date: created: Sep 25 2022

A wormhole can be visualized as a tunnel with two ends, each at separate points in spacetime (i.e., different locations or different points of time). Wormholes are consistent with the general theory of relativity, but whether wormholes actually exist remains to be seen.

Asked By: Curtis White Date: created: Jun 25 2022

Does time exist in a black hole

Answered By: Zachary Rodriguez Date: created: Jun 25 2022

To a distant observer, clocks near a black hole would appear to tick more slowly than those further away from the black hole. Due to this effect, known as gravitational time dilation, an object falling into a black hole appears to slow as it approaches the event horizon, taking an infinite time to reach it.

Asked By: Michael Ward Date: created: Jul 26 2022

Is dark matter matter

Answered By: Hunter Diaz Date: created: Jul 28 2022

Dark matter is a form of matter thought to account for approximately 85% of the matter in the universe and about a quarter of its total energy density. Most dark matter is thought to be non-baryonic in nature, possibly being composed of some as-yet undiscovered subatomic particles.

Asked By: Henry Phillips Date: created: Apr 26 2022

Are micro black holes dangerous

Answered By: Seth Wright Date: created: Apr 26 2022

Cosmic rays hitting the Earth’s atmosphere may already create these. If dangerous micro black holes are created by cosmic rays, then the Earth would already be damaged. Because the Earth is not damaged by black holes, scientists think they are not dangerous.

Asked By: Connor Ramirez Date: created: Feb 01 2022

What are black holes capable of

Answered By: Raymond Young Date: created: Feb 04 2022

Black hole – mathematically defined region of spacetime exhibiting such a strong gravitational pull that no particle or electromagnetic radiation can escape from inside it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.

Asked By: Devin Green Date: created: Apr 30 2022

What is a quasar in space

Answered By: Roger Bailey Date: created: May 01 2022

A quasar (/ˈkweɪzɑːr/) (also known as a quasi-stellar object abbreviated QSO) is an extremely luminous active galactic nucleus (AGN), in which a supermassive black hole with mass ranging from millions to billions of times the mass of the Sun is surrounded by a gaseous accretion disk.

Related Question Answers

Cameron Clark

Professional

Quick Answer: How Many Rolex Submariners Made Per Year?

800,000.The number of watches produced at Rolex every year (which is only known because Rolex has its movements certified by the official Swiss chronometer control center, COSC, and their numbers are public). Why are Rolex Submariners so expensive? The materials are very expensive. Rolex, for example, tends to use 904L steel which is leagues ahead of even most luxury market equivalents. They tend to use 316L steel. This makes them harder, shinier and also more expensive by default. Do Rolex keep their value? As they say in the business, most watches are like new cars and depreciate the minute you strap them on your wrist. But is this the case with every watch brand? Thankfully, no. Ask if Rolex watches can hold their value or even appreciate down the line and the answer is yes. What year did Rolex Submariner change? The Rolex Submariner 16610 was first introduced in 1989…

Steven Moore

Professional

Can You Paint Over Dried Paint?

How do you paint over already painted metal? Spray paint metal surfaces that have already been painted by first preparing the project, following these steps:Remove loose rust with a wire brush, sandpaper or chemical rust remover.Lightly sand the metal surface.Remove dust with a tack cloth.. How do you paint over peeling paint? Prep the Area. Old paint can chip, flake or peel, leaving behind cracks and small holes. ... Remove Peeling Paint. If you try to paint over peeling paint, you will not have a smooth, professional finish. ... Patch the Wall. ... Sand Patched Areas. ... Clean and Apply Primer. ... Wait until the primer is completely dry before repainting. What happens if you don't use primer before painting? Because it has a glue-like base, drywall primer helps the paint adhere properly. If you skip priming, you risk peeling paint, especially in humid conditions. Moreover, the lack of adhesion…

Clifford Jones

Professional

How Long Do Ceramic Pans Last?

3 to 5 years Do ceramic pans need to be seasoned? Generally, ceramic cookware doesn't require seasoning. However, some products come with the instruction/recommendation to season the cookware prior to first use, and to re-season it about twice a year to revitalize ceramic non-stick surface. Make sure to rinse and dry your cookware before seasoning. How long do non stick pans last? three to five years Is ceramic cookware better than Teflon? In terms of ceramic vs Teflon cookware, the main difference lies in the composition of the non stick coating. Teflon is known to emit toxic fumes when it is heated up to a certain temperature. Ceramic coating, on the other hand, tends to be lead, cadmium, PFOA and PTFE free. Which is better ceramic or granite cookware? Today granite cookware and granite pans are made with a stainless steel core and topped with a glass coating. Most granite…

Caleb Phillips

Professional

Question: Is Ceramic Harder Than Glass?

In theory, ceramic is stronger than glass.Glass is actually a type of ceramic, but to be specific, glass has no ordered molecular structure.Most modern ceramics have a crystalline molecular structure.Typically ceramic is stronger than glass of the same thickness, and more resistance to heat and thermal changes.3 Feb 2016 Is ceramic more durable than glass? Ceramic is lighter than glass, but usually because it is porous. One of the big benefits of ceramic over class is that ceramic is a good thermal insulator due to its porosity.6 Nov 2009 What's the difference between glass and ceramic? In the manufacture of both glass and ceramics, there is a slight difference. A glass kiln will have heating elements on the top whereas a ceramic kiln will have heating elements on the sides. Glass is known to be non-crystalline. Ceramics may be crystalline or partly crystalline.11 Jun 2017 Is ceramic easily breakable? Ceramics…

Alex Gray

Professional

Question: Are Ceramic Watches Good?

Apart from being scratch resistant, high-tech watch ceramic is very lightweight, heat-resistant and anti-allergic.Its sleek surface offers a unique feel on the wrist that is both cool and smooth.This is a highly time intensive manufacturing method which makes high-tech watch ceramic so valuable. Why ceramic watches are expensive? Machining is generally very hard to do for most ceramics. The raw materials to make ceramic parts is cheap, but the process to make them is expensive. Metals are often the other way around, with precious metal materials being expensive, but the process used to machine them being less expensive. Does ceramic watch break easily? Potentially Brittle While ceramic is extremely durable and can resist scratches and common damages, due to the molecular structure it is not resistant to shattering. If a ceramic case falls onto a hard surface from a few feet or more, there is a good chance that it…

Cody Perry

Guest

Quick Answer: Does Gold Scratch Easily?

Despite being stronger and more durable, platinum is a softer metal than 14k gold.This means it will get scratched a little easier than 14k gold would.However, an important thing to note is when gold is scratched, the gold is lost and it looks like a scratch. Does 10k gold scratch easily? As a result of its hardness, 10K gold jewelry is very durable, relatively speaking. In comparison, alloys such as 18K or 20K gold scratch much more easily, and jewelry made with them is easier to bend. Click here to see an extensive selection of 10K gold jewelry. Does 18k gold scratch easily? You won't usually find gold rings beyond 18K because they tend to get scratches and deformations way too easily. Obviously, 18K gold is the most expensive, but it's also the one that's least likely to tarnish. It is, however, more prone to being affected by every-day use…

Morgan Campbell

Guest

Question: Does Rolex Scratch Easily?

Unlike other highly mechanical, high-end watches, Rolex is designed to take everyday beating, watch case, crystal and all.Scratches and wristwatches are a fact of life.Rolex gold, platinum, and 904L stainless steel does scratch with day-to-day use. Are Rolex scratch resistant? Without question, Rolex watches are know for being one of the most durable mechanical timepieces made. Rolex utilizes 904L stainless steel that is highly polishable and scratch resistant, but scratches do happen. Does Rolex face scratch? Acrylic has its advantages. It is very durable, easily resisting bangs. However, it is not scratch resistant, thus those bangs can still leave a mark. Rolex used acrylic in their watches, but slowly began introducing a synthetic sapphire replacement similar to the one in the image above. How do I prevent scratches on my watch? 0:41 1:28 Suggested clip · 40 seconds How To Stop Scratching Up Your Watch !! - YouTube YouTube Start…

Landon Lee

Guest

Question: Is Glass Harder Than Ceramic?

In theory, ceramic is stronger than glass.Glass is actually a type of ceramic, but to be specific, glass has no ordered molecular structure.Most modern ceramics have a crystalline molecular structure.Typically ceramic is stronger than glass of the same thickness, and more resistance to heat and thermal changes. Is Glass considered a ceramic? A ceramic material is an inorganic, non-metallic, often crystalline oxide, nitride or carbide material. Some elements, such as carbon or silicon, may be considered ceramics. Glass is often not considered a ceramic because of its amorphous (noncrystalline) character. Is ceramic easily breakable? Ceramics are brittle because they're loaded with irregularly distributed pores. Some ceramics, like bricks, have large pores. “The larger the pore, the easier it is to break,” Greer says. If you've ever broken a ceramic vase or some such, the break probably originated at a pore. What is the hardest ceramic? The technical properties of silicon…

William Parker

Guest

Question: Does Ceramic Break Easily?

The rub with ceramics is that, while they're tough to scratch, they're* *more prone to cracking compared to metal.Some ceramics, like bricks, have large pores.“The larger the pore, the easier it is to break,” Greer says.If you've ever broken a ceramic vase or some such, the break probably originated at a pore. Does ceramic watch break easily? Potentially Brittle While ceramic is extremely durable and can resist scratches and common damages, due to the molecular structure it is not resistant to shattering. If a ceramic case falls onto a hard surface from a few feet or more, there is a good chance that it may shatter. Why do ceramics break easily? But, in ceramics, due to the combined ionic and covalent bonding mechanism, the particles cannot shift easily. The ceramic breaks when too much force is applied, and the work done in breaking the bonds creates new surfaces upon cracking.…

Cole Hernandez

Guest

Quick Answer: What Is A Rolex Hulk?

Rolex Hulk Nickname Origin: Introduced in 2010 to commemorate the 60th anniversary of Rolex's legendary dive watch, the "Hulk" marks the first time in Rolex history that the Submariner has been offered with any dial color other than black or blue. What is a Rolex Kermit? Presenting the 50th Anniversary Rolex Submariner 16610LV, also known as the Kermit Rolex watch. The Kermit Rolex model is a Rolex Green Submariner that was released in 2003, in celebration of the Rolex Submariner's 50th Anniversary. Is it worth buying a Rolex? So in short, yes, a rolex can be worth it. Remember its not an investment. If you want your $9000 to grow steadily in value then you are far better off finding some good long term growth shares with healthy dividend returns etc. Rolex is not an appreciating asset unless you are buying a rare antique. Why are Rolex Submariners so expensive?…

Gavin Bailey

Professor

Quick Answer: Why Are Rolex So Expensive?

The materials are very expensive.Rolex, for example, tends to use 904L steel which is leagues ahead of even most luxury market equivalents.They tend to use 316L steel.This makes them harder, shinier and also more expensive by default. Is buying a Rolex worth it? So in short, yes, a rolex can be worth it. Remember its not an investment. If you want your $9000 to grow steadily in value then you are far better off finding some good long term growth shares with healthy dividend returns etc. Rolex is not an appreciating asset unless you are buying a rare antique. Why are watches so expensive? Some have a price tag which can seem high, but which is justified for a number of reasons. Generally speaking, because of the nature of their movements, mechanical watches are more expensive than quartz watches. The production of quartz or mechanical movements is at the cutting-edge…

Aaron Torres

Professor

Question: Is Ceramic Scratch Resistant?

The ceramic retains the color and is scratch-resistant; this means the bezel will always keep its “brand new” look.Ceramic is one of the hardest class of materials known meaning that engineering the material is extremely hard.On the other hand, because it is so tough, it's difficult to scratch. Does ceramic break easily? Ceramics are brittle because they're loaded with irregularly distributed pores. Some ceramics, like bricks, have large pores. “The larger the pore, the easier it is to break,” Greer says. If you've ever broken a ceramic vase or some such, the break probably originated at a pore. Is ceramic expensive? Machining is generally very hard to do for most ceramics. It is perfectly normal that a ceramic case is more expensive than a steel or even titanium case. However, it will not likely exceed the cost of a gold or platinum case, as the materials used are not that…

Bryan Ramirez

Professor

Quick Answer: How Durable Is A Ceramic Watch?

Apart from being scratch resistant, high-tech watch ceramic is very lightweight, heat-resistant and anti-allergic.Its sleek surface offers a unique feel on the wrist that is both cool and smooth.Ceramic watches are durable and very versatile in shiny metallic colours with smooth or ornate surfaces. Why is ceramic watch so expensive? Machining is generally very hard to do for most ceramics. The raw materials to make ceramic parts is cheap, but the process to make them is expensive. Metals are often the other way around, with precious metal materials being expensive, but the process used to machine them being less expensive. Does ceramic break easily? Ceramics are brittle because they're loaded with irregularly distributed pores. Some ceramics, like bricks, have large pores. “The larger the pore, the easier it is to break,” Greer says. If you've ever broken a ceramic vase or some such, the break probably originated at a pore.…

Philip Howard

Professor

Quick Answer: Are Ceramics Expensive?

How do you price ceramics? Suggested clip · 55 seconds How to PRICE your pottery..or ANYTHING!!!!- YouTube YouTube Start of suggested clip End of suggested clip Is ceramic expensive? Machining is generally very hard to do for most ceramics. It is perfectly normal that a ceramic case is more expensive than a steel or even titanium case. However, it will not likely exceed the cost of a gold or platinum case, as the materials used are not that precious. How much does a pottery class cost? General Cost Lessons in pottery vary in cost between the level of tuition you require and the standard of the teaching, and also the location. For a basic beginners lesson you can expect to pay between $10 and $30, usually as part of a longer course. What is the difference between pottery and ceramics? With this you will definitely distinguish the difference between the…

Clifford Robinson

Professor

Quick Answer: Is Ceramic Stronger Than Steel?

Strength (1) A material's hardness is determined by measuring the size of an indentation made by a sharp diamond pressed strongly onto a material specimen.The hardness of alumina ceramics is nearly three times that of stainless steel; silicon carbide is more than four times harder than stainless steel. Is ceramic strong? A ceramic material is an inorganic, non-metallic, often crystalline oxide, nitride or carbide material. Some elements, such as carbon or silicon, may be considered ceramics. Ceramic materials are brittle, hard, strong in compression, and weak in shearing and tension. What is the strongest type of steel? What Is the Strongest Non-Alloy Metal in the World? Tungsten has the highest tensile strength of any natural metal, but it's brittle and tends to shatter on impact.Titanium has a tensile strength of 63,000 PSI. Chromium, on the Mohs scale for hardness, is the hardest metal around. Are ceramics tougher than metals? The…

Gordon Coleman

User

Quick Answer: Is Ceramic Breakable?

Ceramic and porcelain are two materials that are strong and smooth, but breakable.It is a type of ceramic, but its clay makes it denser and more durable.Its clay is white and very refined.Though the two are very similar, porcelain tends to be more expensive than ceramic. Is ceramic easily breakable? Ceramics are brittle because they're loaded with irregularly distributed pores. Some ceramics, like bricks, have large pores. “The larger the pore, the easier it is to break,” Greer says. If you've ever broken a ceramic vase or some such, the break probably originated at a pore. Is ceramic strong? A ceramic material is an inorganic, non-metallic, often crystalline oxide, nitride or carbide material. Some elements, such as carbon or silicon, may be considered ceramics. Ceramic materials are brittle, hard, strong in compression, and weak in shearing and tension. Are ceramics brittle? The two most common chemical bonds for ceramic materials…

Gerld Green

User

Quick Answer: Can Ceramic Scratch Metal?

Ceramics, on the other hand, are virtually scratch-proof.Unlike an aluminum or a stainless steel case, a ceramic one can take a licking and keep on ticking.The rub with ceramics is that, while they're tough to scratch, they're* *more prone to cracking compared to metal. Can you scratch ceramic? The ceramic retains the color and is scratch-resistant; this means the bezel will always keep its “brand new” look. Ceramic is one of the hardest class of materials known meaning that engineering the material is extremely hard. On the other hand, because it is so tough, it's difficult to scratch. Is ceramic harder than steel? A material's hardness is determined by measuring the size of an indentation made by a sharp diamond pressed strongly onto a material specimen. The hardness of alumina ceramics is nearly three times that of stainless steel; silicon carbide is more than four times harder than stainless steel.…

Cyrus Torres

User

Question: Are Ceramic Bezels Scratch Proof?

The ceramic retains the color and is scratch-resistant; this means the bezel will always keep its “brand new” look. How durable is a ceramic watch? High-tech ceramic is really a material with unique properties. Apart from being scratch resistant, high-tech watch ceramic is very lightweight, heat-resistant and anti-allergic. Ceramic watches are durable and very versatile in shiny metallic colours with smooth or ornate surfaces. Can Rolex face scratch? Acrylic has its advantages. It is very durable, easily resisting bangs. However, it is not scratch resistant, thus those bangs can still leave a mark. As you can see from the image above, an acrylic crystal can gather many scratches, especially one worn often. Why are ceramic watches so expensive? Machining is generally very hard to do for most ceramics. The raw materials to make ceramic parts is cheap, but the process to make them is expensive. Metals are often the other…

Francis Gonzalez

User

Quick Answer: Can Rolex Face Scratch?

How do I prevent scratches on my watch? 0:41 1:28 Suggested clip · 40 seconds How To Stop Scratching Up Your Watch !!- YouTube YouTube Start of suggested clip End of suggested clip Can scratches on stainless steel watch be buffed? Continue to rub the scratches until they disappear. Apply more metal polish to the pad or cloth as needed. When you're done with one area, move down the watch band to the next section. When you're finished, use a clean cloth to buff the stainless steel to a shine. What is the face of a Rolex made of? Steel comes in various types and grades and most steel watches are made from a type of stainless steel called 316L. Today, all the steel in Rolex watches is made from 904L steel, and as far as we know, pretty much no one else does. Is it possible to scratch sapphire…

Owen Cooper

User

Is Ceramic Harder Than Stainless Steel?

Strength (1) The hardness of alumina ceramics is nearly three times that of stainless steel; silicon carbide is more than four times harder than stainless steel.This extreme hardness is one of many unique properties that makes Fine Ceramics "super materials" for modern technology. Are ceramic knives better than metal? The blade is sharpened so thin that anything hard may chip your ceramic knife. The knife you choose will come down to your own needs; ceramic knives are not as versatile as steel and they do not make a good all-purpose knife, however, they are excellent at slicing fruits and vegetables thinly. Is ceramic harder than titanium? Tungsten is about 10 times harder than 18K Gold, 5 times harder than tool steel, and 4 times harder than titanium. Tungsten measures between 8 and 9 on the Mohs hardness scale. (Diamonds are a 10 - the highest.) Tungsten, though very hard, is…