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Santa on the naughty list after 'swearing at children'
Santa on the naughty list after 'swearing at children'
Santa goes from festive favourite to foul-mouthed yob as he apparently tries to evacuate a building after smoke alarms go off.
Santa Claus has been criticised by parents after he allegedly swore at children. The Santa, whose human alias has not been revealed, had been in his grotto at a family event in St Ives, Cambridgeshire, when fire alarms were activated by smoke from another event nearby.
Parents said the festive favourite had then "ripped off his hat and beard" and "used the most vile language", shocking the dozens of children who had been waiting to meet him.
One told Cambridgeshire Live: "People were in the process of vacating the building and in came angry Santa swearing using the most vile language, ripping off his hat and beard with steam literally coming from his ears...not sure why he was so cross?"
Another parent said: "My friend's little boy was upset as his dad was carrying him when Santa told them to 'get the f*** out'.
"We told our children he wasn't the real Santa.
"He was an impostor and will be going on the naughty list."
Responding to complaints, Festival Events St Ives said Santa had "immediately assisted in the evacuation of the building" after the alarms went off at the Sunday event.
"FESt wish to apologise for any offence or distress caused to parents and children by the attempts to ensure all visitors and staff had exited the building and were safe."
Santa on the naughty list after 'swearing at children'
Santa goes from festive favourite to foul-mouthed yob as he apparently tries to evacuate a building after smoke alarms go off.
Santa Claus has been criticised by parents after he allegedly swore at children. The Santa, whose human alias has not been revealed, had been in his grotto at a family event in St Ives, Cambridgeshire, when fire alarms were activated by smoke from another event nearby.
Parents said the festive favourite had then "ripped off his hat and beard" and "used the most vile language", shocking the dozens of children who had been waiting to meet him.
One told Cambridgeshire Live: "People were in the process of vacating the building and in came angry Santa swearing using the most vile language, ripping off his hat and beard with steam literally coming from his ears...not sure why he was so cross?"
Another parent said: "My friend's little boy was upset as his dad was carrying him when Santa told them to 'get the f*** out'.
"We told our children he wasn't the real Santa.
"He was an impostor and will be going on the naughty list."
Responding to complaints, Festival Events St Ives said Santa had "immediately assisted in the evacuation of the building" after the alarms went off at the Sunday event.
"FESt wish to apologise for any offence or distress caused to parents and children by the attempts to ensure all visitors and staff had exited the building and were safe."
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ironically that hat cost $19.84...
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Matter Sucked in by Black Holes May Travel into the Future, Get Spit Back Out
Matter Sucked in by Black Holes May Travel into the Future, Get Spit Back Out
Black holes are among the most mysterious places in the universe; locations where the very fabric of space and time are warped so badly that not even light can escape from them. According to Einstein's theory of general relativity, at their center lies a singularity, a place where the mass of many stars is crushed into a volume with exactly zero size. However, two recent physics papers, published on Dec.10 in the journals Physical Review Letters and Physical Review D, respectively, may make scientists reconsider what we think we know about black holes. Black holes might not last forevThe edge of Einstein's physics
Astronomers and physicists have long held that the idea of a singularity simply must be wrong. If an object with mass has no size, then it has infinite density. And, as much as researchers throw around the word "infinity," infinities of that kind don't exist in nature. Instead, when you encounter an infinity in a real, physical, science situation, what it really means is that you've pushed your mathematics beyond the realm where they apply. You need new math.
It's easy to give a familiar example of this. Newton's law of gravity says that the strength of the gravitational attraction changes as one over the distance squared between two objects. So if you took a ball located far from Earth, it would experience a certain weight. Then, as you brought it closer to Earth, the weight would increase. Taking that equation to the extreme, as you brought the object near to the center of Earth, it would experience an infinite force. But it doesn't.
Instead, as you bring the object close to the surface of Earth, Newton's simple law of gravity no longer applies. You have to take into account the actual distribution of Earth’s mass, and this means that you need to use different and more complex equations that predict different behavior. Similarly, while Einstein's theory of general relativity predicts that a singularity of infinite density exists at the center of black holes, this can't be true. At very small sizes, a new theory of gravity must come into play. We have a generic name for this new theory: It's called quantum gravity. [8 Ways You Can See Einstein's Theory of Relativity in Real Life]
The name quantum gravity simply means "gravity at the smallest scales," but the phrase doesn't imply a specific theory. However, specific theoretical proposals have been made that would describe gravity as it is in the microcosm. One proposal is called loop quantum gravity.
Loop quantum gravity is well-defined mathematically, and it expresses the fabric of space-time as a lattice of spin networks, which evolve over time. Spin networks are just a mathematical formulation that describes how particles and fields interact. From a more practical point of view, loop quantum gravity predicts that space-time is quantized, with a smallest possible unit or piece of space and time, beyond which space-time cannot be subdivided further.
Loop quantum gravity is a difficult mathematical theory that has resisted the making of testable predictions inside black holes. However, Abhay Ashtekar and Javier Olmedo at Pennsylvania State University and Parampreet Singh at Louisiana State University have applied loop quantum gravity to the center of black holes. They claim that the result is not a singularity.
Their calculation predicts that space-time is curved very strongly near the center of the black hole. The result is that space-time continues into a region in the future that has the structure of a white hole. A white hole is like a black hole in reverse, meaning that unlike a black hole, which pulls matter in, a white hole shoots matter out.
There is perhaps another way to imagine what they are predicting. It is well-known that in strong gravitational fields, time slows down. And black holes contain the strongest gravitational fields in the universe. Because of this, one possible interpretation of this new work is that matter falls into a black hole and then "bounces," shooting the mass back across the cosmos. Because time is so slow near the center of a black hole, that process simply is taking an enormous amount of time. If the researchers are correct, in the very distant future, where there are now black holes, matter will be erupting, spreading matter throughout the cosmos.
As always in theoretical science, there are many interesting and provocative ideas that just aren’t true, and this may be one of them. So it's important to see if there is experimental support for theoretical ideas like these.
There are a few possibilities. Scientists have observed very high energy phenomena in space that have not been completely explained. One is the existence of very high energy cosmic rays that hit Earth’s atmosphere. Another is what are called "fast radio bursts," which is when a large amount of radio energy is observed in a very short amount of time. Both of those phenomena could, at least in principle, be the signature of a black hole transitioning to a white hole.
It is certainly premature to accept this interesting new idea. Instead, it would be prudent to see how ongoing calculations using loop quantum gravity unfold. If predictions improve and begin to look more like some of the unexplained observed astronomical phenomena, it could be that this new result will both explain how quantum gravity works and reshape our understanding of both the past and the future of our universe.
Source: https://www.space.com/42780-black-holes-white-holes-quantum-gravity.html?utm_source=sdc-newsletter&utm_medium=email&utm_campaign=20181220-sdc&fbclid=IwAR0706CJ90sces6SL0XA_U10FTYAVK2MhRbgwa4DNDJhAeRtrdTypgIL5AA
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Matter Sucked in by Black Holes May Travel into the Future, Get Spit Back Out
Black holes are among the most mysterious places in the universe; locations where the very fabric of space and time are warped so badly that not even light can escape from them. According to Einstein's theory of general relativity, at their center lies a singularity, a place where the mass of many stars is crushed into a volume with exactly zero size. However, two recent physics papers, published on Dec.10 in the journals Physical Review Letters and Physical Review D, respectively, may make scientists reconsider what we think we know about black holes. Black holes might not last forevThe edge of Einstein's physics
Astronomers and physicists have long held that the idea of a singularity simply must be wrong. If an object with mass has no size, then it has infinite density. And, as much as researchers throw around the word "infinity," infinities of that kind don't exist in nature. Instead, when you encounter an infinity in a real, physical, science situation, what it really means is that you've pushed your mathematics beyond the realm where they apply. You need new math.
It's easy to give a familiar example of this. Newton's law of gravity says that the strength of the gravitational attraction changes as one over the distance squared between two objects. So if you took a ball located far from Earth, it would experience a certain weight. Then, as you brought it closer to Earth, the weight would increase. Taking that equation to the extreme, as you brought the object near to the center of Earth, it would experience an infinite force. But it doesn't.
Instead, as you bring the object close to the surface of Earth, Newton's simple law of gravity no longer applies. You have to take into account the actual distribution of Earth’s mass, and this means that you need to use different and more complex equations that predict different behavior. Similarly, while Einstein's theory of general relativity predicts that a singularity of infinite density exists at the center of black holes, this can't be true. At very small sizes, a new theory of gravity must come into play. We have a generic name for this new theory: It's called quantum gravity. [8 Ways You Can See Einstein's Theory of Relativity in Real Life]
The name quantum gravity simply means "gravity at the smallest scales," but the phrase doesn't imply a specific theory. However, specific theoretical proposals have been made that would describe gravity as it is in the microcosm. One proposal is called loop quantum gravity.
Loop quantum gravity is well-defined mathematically, and it expresses the fabric of space-time as a lattice of spin networks, which evolve over time. Spin networks are just a mathematical formulation that describes how particles and fields interact. From a more practical point of view, loop quantum gravity predicts that space-time is quantized, with a smallest possible unit or piece of space and time, beyond which space-time cannot be subdivided further.
Loop quantum gravity is a difficult mathematical theory that has resisted the making of testable predictions inside black holes. However, Abhay Ashtekar and Javier Olmedo at Pennsylvania State University and Parampreet Singh at Louisiana State University have applied loop quantum gravity to the center of black holes. They claim that the result is not a singularity.
Their calculation predicts that space-time is curved very strongly near the center of the black hole. The result is that space-time continues into a region in the future that has the structure of a white hole. A white hole is like a black hole in reverse, meaning that unlike a black hole, which pulls matter in, a white hole shoots matter out.
There is perhaps another way to imagine what they are predicting. It is well-known that in strong gravitational fields, time slows down. And black holes contain the strongest gravitational fields in the universe. Because of this, one possible interpretation of this new work is that matter falls into a black hole and then "bounces," shooting the mass back across the cosmos. Because time is so slow near the center of a black hole, that process simply is taking an enormous amount of time. If the researchers are correct, in the very distant future, where there are now black holes, matter will be erupting, spreading matter throughout the cosmos.
As always in theoretical science, there are many interesting and provocative ideas that just aren’t true, and this may be one of them. So it's important to see if there is experimental support for theoretical ideas like these.
There are a few possibilities. Scientists have observed very high energy phenomena in space that have not been completely explained. One is the existence of very high energy cosmic rays that hit Earth’s atmosphere. Another is what are called "fast radio bursts," which is when a large amount of radio energy is observed in a very short amount of time. Both of those phenomena could, at least in principle, be the signature of a black hole transitioning to a white hole.
It is certainly premature to accept this interesting new idea. Instead, it would be prudent to see how ongoing calculations using loop quantum gravity unfold. If predictions improve and begin to look more like some of the unexplained observed astronomical phenomena, it could be that this new result will both explain how quantum gravity works and reshape our understanding of both the past and the future of our universe.
Source: https://www.space.com/42780-black-holes-white-holes-quantum-gravity.html?utm_source=sdc-newsletter&utm_medium=email&utm_campaign=20181220-sdc&fbclid=IwAR0706CJ90sces6SL0XA_U10FTYAVK2MhRbgwa4DNDJhAeRtrdTypgIL5AA
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