35 Burst results for "Stephen hawking"
Stephen Hawking's family donates his ventilator to UK hospital
"The family of Stephen Hawking says moving to help in the corona virus pandemic hawking's family donated the ventilator he used to help treat patients at the royal Papworth hospital in Cambridge that's where hawking who spent most of his life in a wheelchair and spoke using the computer speech synthesizer was treated during his life hawking's daughter Lucy says the family wanted to help treat those suffering from the corona virus and reached out to the hospital to offer help the hospital has doubled its critical care capacity because of cold at nineteen and hawking's ventilator has been added to the extra equipment brought in to treat the most seriously ill
What time is it?
"We're GONNA talk about time. Most states in the United States south time changes spring forward set clocks forward in the spring fall back set clocks EXPEC then you have time zones across the United States and around the world fly far enough and you'll lose a day or gain a day depending upon which way you're going when you perform perform the same activities of over and over the day seemed to fly by or drag depending on the activities for your day with new activities for the day may fly even faster faster. Depends upon who you talk to. There was a time in my life when I worked with people. WOM One and with some clients I would look up at the clock and watch a hand and the clock move from one block bark to another would seem like ours would pass and I look at the clock again only to see that it had just been a minute. Ah Yes perception. But what about time. Slips time warms is time travel possible to Great Luminaries Albert Einstein and Stephen Hawking gave us. It's a simple answer. Yes but the conversation on time travel is filled with what is exactly. What did Einstein have to say about time travel? I'm Stein's theory of special relativity says that time slows down or speeds up depending upon. How fast you move relative to something else? Approaching the speed of light person inside a spaceship would age much slower than his twin at home. Also under Einstein's theory of general relativity. Nobody gravity can bend time picture. Four dimensional fabric called space time when anything that has mass sits on that piece of fabric it causes a dimple or bending of space time the bending of space time causes objects to move on a curved path and that curvature of space is what we know as gravity both the general and special relativity theories have been proven with GPS satellite techniques. That has very very accurate timepieces on board the effects of gravity as well as the satellites increased speed from Earth relative to observers on the ground make the unadjusted clocks gained. Thirty eight microseconds today. Who Thirty Eight microseconds does sound like much of a time change to me? Let's let's continue here engineers make calibrations to account for the difference in a sense. This effect called time. dilation means astronauts nonce were time travellers as return to earth very very slightly younger than there are identical twin the remains on the planet. What did Stephen Hawkins' I have to say? About time. Travel Hawking famously held a party for time travellers but did not send out the patients until after the party. No one showed for the festivities but the scientists right that there is still hope the traveling back in time could be possible according to the laws of the universe he pigs is this notion on the premise of something called m theory that suggests the universe may contain seven hidden dimensions in addition into the familiar four dimensions of space time rapid space travel and travel back in time can't be ruled out. According to our present understanding he writes. This is hawking. Science fiction fans need not lose heart. There's hope in theory you have to look hockey's M theory it's a little too long and complex likes for this podcast. There's a lesser known theory about time travel. Though is commonly referred to as the step theory it takes into account that theories expressed grasp both hawking and Einstein. They're multiple dimensions. The step theory states that although there are multiple dimensions they are parallel. Exactly to who are on that some run ahead of ours and some behind and there are umbilical warburton holes or the dimensions overlap further. That many of us unknowingly walked through these openings periodically the Dacia Fu is an example one. Conventional Science Science can't explain that is stepping into a dimension that is slightly ahead of your own. You know the feeling that you've been to displace before or met this person before or even particular activity before but that most of us shake off the feeling as being just a little strange whatever theory you embrace. It's is fairly realistic to state that in the next not too distant future we maybe stepping forward or backward and Thomas easily stepping onto an escalator skeptical. It wasn't that long ago that the concept of traveling in space let alone landing on the moon was stuff of fiction and the greatest scientific minds signs of that era declared the idea ridiculous impossibility. That's sad a little less than fifteen hours ago. I stepped into the future where I sit now.
Electronic Mind Reading
"The one thing that science will never be able to do is find a way to read our minds PT sure about that time, if our thoughts are actually patterns of activity in the brain. It's at least possible that neuroscientists could find a way to detect and decode them zones, really hard, if not impossible. Well in twenty nineteen researchers made important progress towards the skull. They placed a grid of over one hundred recording electrodes into the auditory cortex of the brains of patients that were undergoing brain surgery to treat epilepsy with this electrode, grid, they monitored electrical activity in the auditory cortex, while patients listened to recordings of actors reciting a series of sentences and the numbers from zero to nine join to interpret the data from more than one hundred electrodes all recording. At once sounds hopelessly. Complicated. That's why the neuroscientist used artificial intelligence to interpret the recordings. They trained a deep learning neural network computer program to use the recordings from the patient's brain to reconstruct, the content of the sentences the patients heard then they tested, the trained neural network program by asking it to reconstruct. The reading of the digits, the program was capable of reconstructing intelligible speech from the neural recordings. Let's not exactly the same as reading thoughts, but it's an important step in that direction. Scientists already know that the sensory portions of the cortex are also used for thinking imagining the technology could be useful for people like the late physicist, Stephen hawking who have difficulty communicating to serious speech, handicaps this moment of science comes from Indiana, University. I'm Don glass, and I'm ya'll Cassandra.
Stephen Hawking, San Francisco And Ken discussed on Lars Larson
"Stephen hawking. Always dumping new Ken to unsexy that talking would slowly type out his words to be synthesized in a robotic voice, but neuroscientists at UC San Francisco have developed a new way to generate artificial speech. They take a person's brain activity and make a computer simulation of the person's vocal tract, including lips tongue and larynx in their testing published in the journal nature a person with a speech disability who might sound like this. Ventura seeing is signed only move would instead sound like
Why are we all so excited about the black hole image?
"There was so much excitement. This week around seeing the first picture of a black hole. Why was it deserving of so much excitement? Ferriol? I think part of it is that it's a new frontier, it's something we haven't seen before it's something that we didn't even think we could see and it's been so long in the making both the technological developments and the theoretical understanding to interpret the data. So I'm I'm really happy that everybody's excited to see the image. Shep you said in the press conference and even here on on our program that black holes are essentially unseasonable. So how do you explain what we're seeing that? We are seeing one now. Yeah. See there naked. If there's nothing around them, but black holes attract just everything around them because they're intense gravity, and they're trying to get into a small volume that it's like when you rub your hands together. They get hot all the fiction heats that guest hundreds of billions of degrees. So black holes are surrounded by these three D flashlights of this hot luminous plasma. And then there. Gravity warps the light from that plasma into these distinct shapes. You're really seeing Einstein's geometrical gravity laid bare. You're seeing just how light moves along space time yet, Einstein even though he came up with the theory about warping space that he not well, he wasn't really convinced that black holes might exist. Yeah. Got. He did struggle with that far awhile the theory. I mean, practically breaks down at the center of a black hole, it predicts a singularity an infinite space time curvature and energy density. So he was very unhappy with that. And he thought maybe there there's a reason why nature would not form. These objects talk a little bit Ferriol about the image itself. So we can explain to folks because it's it it's not quite wooded appears to be a lot more stuff going on there. And let's get right into the reddish ring of light. We're is that coming from? That is coming from right from the inner part of the accretion flow and the base of the jets so uh ship was saying as this plasma. That's the black hole gets from the stars around it swirls around and makes its way down to the black hole. It heats up and the emission that. We are seeing at this particular wavelength of light is coming from right outside of the point of no return. So there's the event or orison outside of that is the photon ring and outside of that is the the part that that truncates the disk and where where we think jets form. So the source of the light is right in the vicinity of that point of no return, and it is being lens than to the circular shape. Well, that's the that's the question I'll continue with that. Because if if it's a three dimensional image shouldn't that shouldn't it be surrounded by that glowing red, so we should? Not be seeing into it as we look straight. That's a very good question. And it's something that I with worked out twenty years ago. So part of the reason we are seeing it is because it's Taurus shaped, so it's not really completely spiritual. But even if it were we have to pick a wavelength of light that satisfies two things. One is we wanted it to be emitted right near the horizon. So it lights it up. We didn't want something that comes from farther away. But it's a double edged sword as you're saying if there's too much of that light too much of that guess then it will interfere with our ability to see down to the horizon by picking the one point three millimeter wavelength of flight. We're we have walking that tightrope. There is light that is lighting up the black hole. But it is not so much that it is actually obscuring our view to the black hole and ship. Actually, is it not true that that light that is heading toward. Toward the black hole will be bent around the back of it and come forward towards us. So it's still say's still face black that way. Yeah. It's a it's a good idea to try to hide behind the black hole because the light from me will always be bent around when in one thousand nine hundred when they looked at it affliction of light during a solar eclipse of stars to verify Einstein at first the deflation was one two thousand of a degree. And now we're looking at light that does loop two loops. So it's a completely different ballgame from that perspective. And and your Senate very, well, you have this flashlight this this light that's close to the event horizon. But not in the event, of course, and with that means that the latest Lynn's around this last photon orbit all the light grazes this last photon orbit. If it goes a little bit inside there is lost forever in the event horizon. And with that means is that we see a ring, which is a projection on this three dimensional flashlight. But then for example, if there were another civilization fail screwing the Milky Way. They would also see a ring or in eighty seven. They would see that ring to. So everybody gets to see a ring because of the Lenzing Einstein's gravity. Why? Then is some of the ring whitish seems brighter than red. Oh, it's a phenomenon that it goes from what very was saying the gas is moving around so quickly. It's a near light speeds. So when it defends all the way into this gravitational, well, it's really moving quickly. And when material moves that fast when it emits light the light is boosted energy in the direction, it's moving. So you're seeing some of the gas coming towards us from underneath the black hole. It seems like it orbits clockwise around. What you see that? And so it's bright on one side and on the other. So is it like a candle? It's hotter. As on that side to a glows brighter. Brighter. It's not so much hotter. Right. So so the color map that we've chosen is a good representation of how bright it is. So the the parts that you're seeing in a lighter color are actually the brighter parts, and that is the reason is the swirling plasma. So the half of it roughly the half that's approaching us is the sprite or emission. And the part receding from us is slightly damore. Chef you talked about that. There is still light inside the black hole. What happens to that light in their la-? Well, there's no light coming to us from the within the event horizon. But as very sad, you have gas always falling into the black hole at all levels. And it emits you really not seeing anything too much interior to the last orbit which that ring that UC everything that is in there tends to go through the event horizon. We don't see it anymore. It just disappears from our causal existence. But where does it go? Well, that's that's the interesting you Larry. Right. If anyone tells you they know don't believe them. This Stephen hawking spent his life trying to figure that out. Didn't he? Well, I. Yeah. I wanna see I think for many people in in our collaboration. It was. It was bittersweet. We lost even hawking just a little while before we made this discovery we had a chance to describe it to him a little bit which was great and wish he'd been alive to see it. Our number eight four four seven two four eight two five five we have so many phone calls. I'm going to get to them after I ask a couple more questions at a lot of people been asking of can you explain the difference between the event horizon, and you you touched on a bit the event horizon the black hole and black holes shadow. Sure, I can do that. So Geno, relatively not only predicts this point of nor return, which we call the event horizon. But it also predicts the existence of a few other special distances from a black hole. The first one is when matter starts plunging in we call it the innermost stable circular orbits. I know it's a mouthful, but it's basically the last points that matter can be in actual orbits around the black hole. If it's interior to that is just gonna start plunging in next up closer to the black hole is the photon ring the point where the lights does the Luke two loops and makes a really bright image that we are able to see as a as a circle in the sky and interior to that is is the event or Isan. And that's where basically the everything is moving toward the singularity. There. The space time have switched. Signs, and that's where all hell breaks loose. So if we were falling into the black hole, we would know that we're going through these places, maybe we would put ten -cially notice the innermost stable circular orbit. But after that, we're just falling in, and we wouldn't necessarily know that we've crossed the horizon it's for a distant observer like us that's these things become
Hawking's nurse struck off for failing to provide 'the care he deserved'
"She wants cared for arguably the world's most famous scientists. But as AP's Charles de LA desma reports the late Stephen Hawking's former nurse has been barred for practicing professional group says it struggled Patricia daddy, the failing to provide the standard of good professional care expected. And professor Hawkins. Deserved. The council says daddy faces multiple misconduct charges including financial misconduct dishonesty and not providing appropriate care. A brilliant theoretical physicist hawking votes, so plainly about the mysteries of space time. I'm black holes that his book a brief history of time became an international bestseller. Dial-a-cheat a seventy six off the living with a rare form of motor
Stephen Hawking's thesis and wheelchair up for auction
"CNBC, Stephen hawking was a brilliant and cosmic visionary and a global celebrity and his family has decided to auction off some of the late physicists possessions. Christie's will hold the sale online. And some of the items are expected to fetch hundreds of thousands of dollars. Five copies of Hawking's doctoral thesis on the origins of the universe will be sold. And they are estimated to be worth about two hundred thousand dollars apiece. Hawking was paralyzed with a motor neuron disease. A L S and his high tech wheelchairs are famous. One of those will be sold for charity. His Simpson's appearances are conic and the script from that show could go for thousands. So to a copy of his bestseller, a brief history of time signed with a thumbprint and personalized bomber jacket that he wore in a documentary bidding is open now and runs through
Stephen Hawking auction raises astronomical sum
"Our permission and agreement. It's hard to do. But that should be the goal period. That said nations should be compassionate. We should have effective immigration laws. When you see a column of people that's made up of women children and young men who wanna get across to avoid danger in Guatemala Honduras. It's hard to consider them invaders. Okay. Now, you talked about the importance of a nation should be able to control its borders. President Trump has sent thousands or will ultimately sent he says fifteen thousand US soldiers to the border to control it what there's been some pushback from from various senior military figures. Would you be among them? I don't think it's the move that. I would recommend. I think it also plays to emotion. I actually think it was designed to go before the midterm elections to meet with the idea of invasion of this caravan. But it's actually should be viewed separate from should we control our border? I think that shouldn't be a debate. That's something that we as a nation should do. But when you send a bunch of troops down to the border, and there are some legal limitations of what they can do you need to make sure that you explain to the American people that this isn't a classic invasion, and our soldiers aren't going to man the ramparts and shoot the invaders. Because that's an accurate. Okay. Except we know that President Trump has said I'll tell you this anybody throwing stones rocks like they did in Mexico where they badly police and soldiers in Mexico, we will consider that a firearm implicit in. That is the idea that they might be shot at well. I think it would be dramatically. Tragic to put soldiers in a position where they particularly shoot immigrants moving forward. Okay. And not as wet this. I mean, this is fascinating. It is an extraordinary issue. But there are senior military figures. General Jim WBZ who oversaw the effort to build the Iraqi army and police I think you'll know these figures he said, the militia was where the military is being used for partisan political purposes it's dangerous because it will political politicized the use of force in ways that democracy should avoid now. He said that actually just about the sending of the troops. And he's right. I think do because. Right. I think that we've used military force for political reasons as far back in history as you can record it that said, it doesn't make it right? Particularly for symbol like this for internal domestic politics. I'm critical of this move. But what I want to make sure we don't do is. We don't then say what we should control our borders. Of course, we should. We need to make sure that's clear sometimes we get around the political rhetoric. Forget it can you imagine the image would come up if immigrants came forward, and we use physical force against them. I mean, what it would do to the United States reputation in the world to the morality of the soldiers put in that position is unconscionable. Okay.
Stephen Hawking’s personal belongings fetch more than $2 Million at auction
Stephen Hawking auction: Scientist's wheelchair and Simpsons script among items on sale
"The items are part of a science sale that includes papers by Isaac Newton and Einstein the auction will take place between October thirty first and November eighth hawking passed
Stephen Hawking's PhD and wheelchair go under the hammer
"Inspiration and a global celebrity now his wheelchair is apparently up for auction by Christie's, that's crazy. They're also going to auction off a whole bunch of his papers from Cambridge University. Yeah. We were talking about this earlier. And we said, well, they ought to put that wheelchair in the Smithsonian. He's a British. He was a British citizenship. Put it in some, you know, someplace in Britain. Similar to the Cambridge University would be the place. Yeah. Sure. Apparently proceeds from the sale of the wheelchair will go to to charities is Stephen hawking foundation and the motor neuron disease association. It's also going to be used I guess to pay off. Inheritance taxes for his kids? Well. Guess you do what you gotta do. Still a shame that it's not going to be prominently displayed in some place where the public and appreciate you would think Ben's
Stephen Hawking's wheelchair, thesis with handwritten notes up for auction
"In the morning, and Stephen Hawking's wheelchair is hitting the auction. Block CBS news. Correspondent Marie green? With this story. Online auction will include twenty two items including Hawking's nineteen sixty five doctoral thesis on the origins of the universe. Some of his awards and a script from one of his appearances on the Simpsons. The items are part of a science sale that includes papers by Isaac Newton and Albert Einstein. The auction will take place between October thirty first and November eight and all the proceeds from that auction
Stephen Hawking discussed on Steve Scaffidi
"His death presents answers to the questions that hawking said he received most during his time on earth. These are the things Stephen Hawking's, considered brilliant. Any was and people wanted his thoughts on things other bombshells? I do not consider it. A bombshell Stephen hawking do not believe in God other. A bomb shells, the British scientists left his readers with include the belief that alien life is out there. Artificial intelligence could outsmart humans and time travel. Can't be ruled out. I'm not
Stephen Hawking and Physicist discussed on 24 Hour News
"In his final book. The late physicist. Stephen hawking warns genetic engineering is likely to create a new race of superhumans that could destroy the rest of humanity, and it will happen. This century hawking suggest wealthy people. Will edit their own in their children's DNA to create superhumans with enhance memory disease, resistance intelligence and longevity. Unimproved humans will die out or just become unimportant hawking died in March his book brief answers to the big questions is published this week.
Apple gets critical iPhone technology in $600 million Dialog deal
"Some source. Some, you know, wild blogger making claims. Or apple is betting six hundred million dollars at improving apple watch iphone battery life. Apple struck a deal that will push its chip making ambitions Ford. The tech giant agreed to pay six hundred million to dialogue semiconductor. A UK base chipmaker that has been working with apple since the first iphones come out. Congratulations to that team. All three hundred employees are going to become apple employees now. And so they paid three hundred million cash for a portion of the dialogue company, including licensing power management, technology assets, and the company will pay the remaining three hundred million to dialogue in an advanced in advance for products that come out within the next three years. Apple says, dialogue has deep expertise in cheap chip development, and we are thrilled to have this talented group of engineers who've long supported our product now working directly for apple, Johnny, Sarah, j Apple's senior vice president hardware technology said in a statement. Very cool. Congratulations to the dialogue team. Or Google pixel three exile, you gives you a love this. Those of you that are are Google pixel fans. And I know I, we've got a few that listen to the show. A matter of fact, I saw one post someone was ordering well, the pixel XL did arrive with a notch because we knew this was going to happen, but the notch can be hidden. It can be disabled and settings. If you don't wanna see the notch, it a black it out. So they, they added a notch hide option. So goodwill explains, it's it is to bring the best cameras. They're dual front cameras, so. Okay. Why would you hide it? Well, you hide it just because if you don't wanna see it, if you don't wanna look like apple fan boy, I guess. All right, pretty cool. Stephen Hawking's, of course, who is no longer with us. His final paper published tackles a famous paradox in if you want to learn about black holes and how they may have soft hair. Yes, that's the the term. It's a pretty fascinating article. I did actually take time in read it and it just give you a fair warning like the first two paragraphs are like dry. In, but then a little bit further down at actually gets kind of good in explains in layman's terms what they're talking about in then you get near the end any get
Stephen Hawking: Master of the multiverse
"To win formation objects fall into black holes, Stephen Hawking's last word takes a look more from CBS reporter, Larry Miller in London, Stephen Hawking's, final scientific papers been released a physicist, and cosmology, professor finished it just days before he died in March. It was written up colleagues at Cambridge and Harvard University's the paper. Entitled black hole entropy and soft hair deals with what happens to information. When objects fall into a celestial black hole, which ultimately disappears. Hawking suggests some information could be preserved. This information. Paradox was at the center of Hawking's life for more than
Stephen Hawking, Motor Neuron Disease and Physicist discussed on BBC World Service
"A final scientific paper continue work by the physicist. Stephen hawking has been published. The study was completed by three professor Hawking's colleagues after his death early this year and examines what happens to objects that disappear into black holes Stephen hawking who lived for more than half a century with motor neuron disease was one of the world's leading cosmologists in a forward to the latest paper his colleagues say his contribution to black hole physics remained. Vitally stimulating to the very
Apple refuses to write software that will unlock mobile phones in order to help protect personal information
"Will fort law enforcement that's used the flaws since two thousand sixteen to collect information for investigations the fbi found the flaw when he got into the phone of one of the shooters in an attack in san bernardino california law enforcement used an outside party to hack the phone because apple refused to write software that would unlock it the company said it did not want to create a security flaw in its product that set off a legal fight then presidential candidate donald trump's urge people to boycott apple in a statement apple says its decision to tighten iphone security is part of its ongoing effort to protect the personal information customer store on their phones apple ceo tim cook has been a crusader for privacy rights even saying privacy is a fundamental human right laura sydell npr news the chrome of theoretical physicist stephen hawking will be interred today the bbc's victoria gill says he will be buried in westminster abbey alongside other distinguished scientists professor hooking family and friends from the world of science politics film and television will gather to remember one of the world's most famous scientists as professor workings ashes are interred his equally famous synthesized voice will feature.
"stephen hawking" Discussed on The Naked Scientists
"Few months ago i was hunched behind stephen hawking's chair trying to fix a loose connection that starting him speaking found it and asked him if he can speak now now he replied that she kriton he'll be greatly missed my name is brendan owens one hundred i'm an astronomer at the royal observatory greenwich for me stephen hawking was a legendary scientist who seem larger than life in my mind i always put them up there with albert einstein and isaac newton which might sound fitting given his genius but really what's running through my mind is when he guest starred on star trek at a poker game in the holodeck with data newton einstein if ever there was someone who encouraged zest for life and passion for science despite the challenges life doubt it was professor stephen hawking illness hawking responded it's a waste of time dangrek disability one house on with life and i haven't done badly stephen hawking's achievement our taste many to the resilient to the human spirit in face of adversity he's in dommage only drove him to academic excellence he was well known for being willful yet his legacy in so many ways is unparalleled i named sheena cruickshank i'm an immunologist the university of manchester when i was a student i read stephen hawking's a brief history of time because really wanted to broaden my knowledge of science it really brought fundamental ideas on physics to life for me and it was an incredible inspiration my only regret is that i hadn't read it earlier as it would have been so useful when i was studying he was such a great mind and he was a real role model.
"stephen hawking" Discussed on The Naked Scientists
"Possibly do the contents impacts of this famous book justice brief history of time was professor hawking's way placing the wonders of the cosmos within reach of everyone with a curious mind it has helped shape and inspire a generation of ecosites on i count myself amongst the number but in any case i'll try and break his famous book down by telling you about my favorite bits of the physics it's explores his very brief history of a brief history of time stephen hawking were extensively on black holes in the mind bending nature singularities to establish ment of black hole thermodynamics before we even had any facial evidence that existed now the mainstay of sedation astronomy from hot gas clouds pulled apart by supermassive black holes too small backhoes stripping matteo from a companion star more recently lie go confirmed that presence from the detection of gravitational waves to spinning black holes collided emerge together i'm sure professor hawking was also excited by the prospect we might soon see a black hole for the first time telescopes all around the world lining up to create the biggest telescope ever the event horizon telescope the path of the line near blackhall is bent by gravity resulting shadow we can observe with this extremely high resolution instruments gravitational light bending the idea that the path of light can be affected by gravity is presented in brief history of time is a direct consequence of general relativity which predicts both pats of light and matter are affected by massive objects.
"stephen hawking" Discussed on The Naked Scientists
"Now best even hawking's name is the whole idea that black holes don't just draw stuff in they do give things off there is this hawking radiation isn't the yes so this was stephen hawking's next big contribution really he took this idea of jacob beckon stein's black holes have entropy and he says well if that's true then they must be taking part in other processes in physics entropy in physics we normally associate with disorder we normally associate it with having lots of little particles of matter or chunks of energy that are getting themselves into a complete mess and getting into disorder so he suggested that if black holes possess entropy they must also be able to generate disordered particles of radiation so it was a very strange conclusion to come to so nissen's then we we've got this material which is leaking out of a black hole for one to a better phrase this is slightly paradoxical because everyone thought black holes don't leak anything they're black for reason this soaking up everything including light so what is the stuff that effectively is coming out and won't sort of rate what sort of you're absolutely right that of course the famous thing about a black hole is supposed to be that it's black but nothing can ever come out of a black hole including light this is an example of what we call a quantum correction that although in sort of classical picture physics of black hole would be completely black when you put in quantum mechanics you get a very very small correction to that picture and the kind of rate we're talking about stuff leaking back out of black hole is incredibly slow the way i like to think about this imagine the sun and i want you to imagine that the son gets dimmer and dimmer and dimmer and dinner until it's about as bright as a torch that's a enormous factor if you had a black hole that was as massive as a son it wouldn't be as deep as the torch you'd have to keep going dimmer and dimmer and dimmer from there by the same factor again and that is the kind of level of stuff that's leaking back out the black hole so it's incredibly slow it will take many many times the age of the universe before a black hole actually appreciably shrinks due to leaking this material backout.
"stephen hawking" Discussed on The Naked Scientists
"Even took this idea and rabbit as it were and his early work was on apply pen roses ideas to show that inside a black hole so called singularity developed where everything would go infinite and signal for new physics and also at that time got some new ideas about the nature of black holes because he and others showed that any backhoe that exist in universe would be described by vase standard equation initiative ab idea an especially important because this was a time when people are starting to observe evidence for black holes objects quasars objects which out sean an entire galaxy even though they no bigger than a star discovered in nineteen sixty three and it was realized later that they probably involved backhoes sue people did have an insight into the existence of black holes but they had not really any way of grappling with how they behaved all what they're evil lucien was likely to be an took stephen hawking to apply the equations of roger penrose to them work out how we could drop cognitively with what these entities might be that the evidence they actually existed really came up rather gradually after nineteen seventy most people believe backhoes existed but stephen was one of those who really told us what black hose were like and that they were standardized objects and george ellis and stephen hawking wrote the classic textbook on this subject in the early nineteen seventies you said that the central black hole is this concept of a singularity what's that and why was that such a breakthrough for stephen hawking to begin to get to grips with well to explain what's important if you matching something just completely sterile collapses then no unsurprised as it goes to a point but the important result of penrose and hawking's work was that even if something collapsed in irregular way then once it gets past a point of no return it will actually former singularity where things go infinite.
"stephen hawking" Discussed on The WIRED Podcast
"Coming up today britain i gets banned from facebook the uk threatens to unleash cyber on russia and we run but the life of stephen hawking through his own words this is absurd three hundred sixty we could guide to the best science tech ideas business and design i'm your host james templeton and joining me are matt reynolds alot and that's it it's just the two of us and the late professor hawking this week so we'll get right to it with some facts what did you learn that we so i learned that nassar's vehicle assembly building is so big to be precise free point six million cubic meters that rain clouds like form below the ceiling it's really really tool which is awesome right and it's only like the seventh biggest building in the world what yeah it's it's because of the height yes essentially the the vacant buildings where they built kind of like satin rockers and rockets and basically it just a massive massive kind of box very very cool the biggest building is is boeing's factory in washington state but that's been more boring it was a massive warehouse thirteen million cubic meters but no rain clouds because it's very high okay so it's because they have to assemble the rockets vertically that you have kind of i guess the the warm air rises up to the top and then starts to condense and what they have really really good aircon yeah they've got like ten thousand tons of air conditioning i think is probably because it's in in florida and it's quite humid all the time to them probably helps to kind of like you make it rain inside.
"stephen hawking" Discussed on Geek News Central Audio
"You know it who knows but there's an article today is as russia is planning to beat us to mars so is there a new space race that's the question and of course there's another space race going onto but it's in the music business of businesses like spotify and apple music are you know clamoring for new customers i personally think that apple music has this inherent advantage because every apple device delivers with abba music pre installed on it and i think over the long haul happe music's gonna win that particular race so time will tell on where that goes well getting probably the most important article of the day stephen hawking cross passed a couple of days ago here and he believe he had a l s and that he lot of people were surprised lived as long as he did i i'm not necessarily surprised scientists pretty awesome at this point and i am sure he had good health care but stephen hawking's fan was founded on the research heated on general tiffany and black holes but he opted stepped outside his own field research using his recognition to highlight what he saw is great challenges and ex exits actual threats to for humanity in coming decades his pronouncements drove headlines across across the world which sometimes prove controversial he in two thousand sixteen when he said the chance of a natural disaster happening on earth could be quite low but there could come a point where something could happen he said it could be you know an asteroid that hits us it could be a large variety of other things could be a science or could be a virus there could be a a variety of things it could take us out and so he thought that you know we need establish herself on self sustaining colonies it mars or beyond and i have a tendency to agree with that the question is do we have the guts to do this he's also warned about the rise of the machines you know about artificial intelligence and how that development can be fantastic but also could spell the end of the human race you know and he also was very concerned about global warming.
"stephen hawking" Discussed on Science in Action
"We that that nobel prize will left with an all the theories that hawking worked on and all that he did this despite his career long disability it's not just the public who are overwhelmed by that image says cosmetologist sean carroll almost all of us who are theoretical physicists you know we're very happy that our life's work is done sitting at a table whether it's in our office or at a coffee shop with pencil and paper scribbling down equations stephen hawking had two and succeeded in doing it all in his mind he would do the radical physics manipulating equations while he was being put to bed at night or while he's being wheeled around in his wheelchair and he managed to make these enormous contributions that any one of us would have been jealous to make without the ability to sit down and scribble on a piece of paper so it's kind of amazing to consider what that really entails and this we on to the ending as stephen hawking's work writer stuart clark suggests we see it as the first chapter in a book still to be written his work reminds me very strongly of the work of a german mathematician who your hannah's kept pla and kept plymouth mathematically described the all bits of the planets but he couldn't explain why the planets moved but he clearly showed there was something natural that was moving those planets i needed explaining and then in the later sixteenth century isaac newton came along with his theory of gravity which showed us exactly why the planets moved and this is where i think hawking's great contribution comes in he's the modern equivalent of your hannah's kept pla in that he's cody fide the problem he's shown us what we now need to go onto explain an invest way his work will enable the next einstein the next newton to bring it all together in a overarching theory stephen.
"stephen hawking" Discussed on Science in Action
"The death of stephen hawking on wednesday rightly dominated the news earlier this week and it dominates this edition of science in action from the bbc world service i'm rolling peace and we're looking at the hard science that established talking as one of the leading physicists of our time but we've also time for the origins of human intelligence with new findings from the cradle of humanity and the inventor of the lithium ion battery which palace all our potables is taking on a bigger project modern society runs on the energy stored in a fossil fuel and that dependence is not sustainable it clear we have to wean ourselves from this dependent john good enough ninety five years old working on a battery that carries more energy is safer and lasts longer than anything we have today we start though with the dominant news this week the death of stephen hawking with paper titles like singularities of gravitational collapse and cosmology or way function of the universe and black hole explosions we can all get a sensor hawking was dealing with really profound ideas but the mathematical language of those ideas put some way beyond most of our understanding so we've turned to some experts sean carroll is a cosmetologist whose claims to fame include connecting the producers of the big bang theory the nerdy sitcom with stephen hawking i was friends with the big bang theory producers and they couldn't get through to stephen hawking so i was able to get him through and he appeared on the big bang theory so i can at least put that as a contribution but shorts contribution to this program is to help steer us through stephen hawking's physics which i put to him is inaccessible to most of us i wouldn't quite say it's inaccessible it's deep it's hard i think the simple way to grasp the magnitude of his contributions is to say that stephen hawking taught us more about gravity the force of gravity than any person's since albert einstein his greatest work.
"stephen hawking" Discussed on As It Happens from CBC Radio
"I am very aware of the wretchedness of time sees them ment act now i have spent my life rambling across a universe inside my mind the voice of cosmetologists stephen hawking who died today at the age of seventy six professor hawking had mused about this moment he wants said quote i'm not afraid of it but i'm in no hurry to die i have so much i want to do i and he ended up accomplishing more than most people dream of in the nineteen sixties he was given only a few years to live after being diagnosed with a ls he would go on to shape our understanding of the universe he helped us rapper heads around such perplexing concepts as black holes real flam was one of professor hawking students at cambridge is now professor himself at the institute of quantum computing we reach raila flam in waterloo antero i'm so to learn of stephen hawking's death how are you remembering your old cambridge professor today it's a sad day but one where i think in second taught we should celebrate and riff reflecting in kabul life somebody with a brea and mine somebody was inspiring inspired midi that only designed community but kind of public general and somebody with an incredible amount of stem and good sense of humor and you know that because you knew him at cambridge you're just a young lad studying there when you first met stephen hawking do you remember your first impressions of him.
"stephen hawking" Discussed on StarTalk Radio
"So steven if we ever really developed the technology to upload your brain into some computer providing life after death or at least consciousness after death would you be first to sign up for that my body ardley works at all because i have motor neurone disease your wedge no nessie less so getting rid of it would be no loss and what's their me discomfort being more to less solely abridging i seed future unless i was terminated by semblance lynching off the computer or by a computer virus well i hadn't thought about that if you're a computer susceptible you have copies just make a backup of yourself so mitchell to title of your book the future of mind the scientific quest to understand enhance and empower the mind will uploading brain become a reality well just remember if at all digital immortality is starting now so this is an example of what's going on here that's right telepathy telekinesis uploading memories recording dreams we can call do all of the above this is no longer science fiction you go to the physics laboratories and you can see how images can be extracted from the human brain how it's possible now that we can upload memories in animals and record memories from animals because physics can now probe thoughts as they go ricocheting through the brain is what you're describing the same thing as consciousness because if that's the case then we can say it's not just our thoughts that live forever it's our very identity ourselves are conscious self that lives forever well there is a theory that says the soul the soul is information it's a vast amount of information but nonetheless information that can be put into holographic form such that even if you pass away something there is is survive but theoretically that is effectively immortality once you reached that point that is you living forever why not have digital immortality wouldn't you wanna talk you great great great great great grandkids who wanna meet their great great great great ancestor chris gives you this gives you movements throughout time throughout space so this is being godlike well that's what we're talking about transcending the human race 'cause i asked stephen hawking about his thoughts on the future of religion just just to get his sense of this spirituality.
"stephen hawking" Discussed on StarTalk Radio
"Right here at the american team of natural history in new york city feature my interview with the claim physicist professor stephen hawking and i asked him about one of the universe's biggest mysteries check it out so stephen everyone wants to know what was around before the big bang was surrounded before big big bang according to general theory of relativity space and time to get your space time continuum or manifold which is not let but no matter energy i adopt approach one gravity destroy beginning of the universe this ordinary or you will replace by imaginary time which behaves like or fourth direction of base then let approach the history of a university in imaginary time is afford dimensional juerg surfaced like the surface of the earth but with two more dimensions jim hard alumni proposed no boundary condition abound dery condition of the universe is at it has no boundary okay then order terms the space time is low surface vowed add like the surface of the earth lung regard imaginary in real time as beginning at the south pole which is smooth point of space time where the normal laws of physics hold there is nothing south of the south pole so there was nothing around before the big bang.
"stephen hawking" Discussed on StarTalk Radio
"Okay so so that means a black hole is not entirely black yeah actually from far away if we were looking at a black hole in a very cold background it would look to us like the black hole is actually emitting sorry it was added temperature radiated radiating at a temperature and and that would explain the famous equation of hawking are two major kinds of black holes we think of astrophysics one of them is the end state behind star the sun will not become a black hole but more massive stars can june and then we find black holes in the centers of galaxies superduper high masses and we call them supermassive black holes because we tell it like it is so i was always wondering what questions stephen hawking might have for man is newton stephen hawking is as the greatest physicist of modern times and is newton as the father classical physics i thought this would make an interesting exchange if they could do such a thing so i asked him let's check it out you hold the same endowed chair that isaac newton did i'm just wondering if we had some way to communicate through time with him and tell them about what life is like today there any questions any problems you might wanna hand him to solve is a solar system stable and what happens to a star that cannot support itself against its own gravity thinking of newton sauve those questions he might give us deeper insights into black holes i'd be curious.
"stephen hawking" Discussed on StarTalk Radio
"Your favorite food favorite trick now at quays you those results peer reviews anything chang cal then it becomes a relation to relationship so just in case anyone who's been living under a rock stephen hawking has what we call lou gehrig's disease l s so and it's gradually paralyzed over the decades and right now he communicates through twitches in his cheek and these are red electrically and he moves the cursor up and down on that screen which we got a brief glimpse up and he basically bangs out the spelling of words and ultimately sentences and then scientific papers that well yes so janet about his favourite equation this is was this incredibly stunning discovery that hawking made the entire of black hole is that nothing can get out of it that's the whole idea can't reflect light it can emit light what falls in never comes out again when you talk about the area of the black hole what you're really describing is the region after which no information can ever escape nothing so this is the surface region surrounding the black hole yes there's nothing there it's not a surface of any material kind it's simply a boundary that separates what can come out and can never come out again and amazingly hawking realized in some sense which seems intuitive in retrospect but it was very difficult that really genius really after somebody tells me can't emit anything it certainly can't you can't even light or be eliminated in any way but what he realized was that if it absorbs stuff it must be taking entropy out of the other side of the boundary right entropy being a measure of disorder or randomness or in some sense energy and so if it takes entropy there is a law genetics that says always increases your room gets messier not cleaner without intervention so disorder always increases and so if it's taking inch out of this side of the boundary it must actually be producing its own entropy and each time it takes something in it gets a little bigger and has a little more entropy so in what form is this entropy is really the mystery then hawking realize the black hole must be evaporating must actually be radiating at a temperature like a hot object.
"stephen hawking" Discussed on On Point with Tom Ashbrook | Podcasts
"This is on point meghna chalker bharti we're talking about the life and legacy of stephen hawking the most famous or publicly recognizable scientists of the past fifty years died this morning in cambridge england he was seventy six years old and just as a measure of how much he truly was beloved by people around the world but especially those in his field here's astrophysicist neil degrasse tyson in july he told larry king that stephen hawking his brilliant scientists who committed his life time and effort to making science relatable and digressed is also said he believes hawking is deserving of a nobel prize if he if doesn't he get doesn't get what i'd be disappointed but i you know what i think i think he's transcended the nobel prize the same with einstein you talk about einstein he did this relativity you don't then say did you know he won a nobel definitely anticlimactic the actually accomplished at that level so he may transcend all awards he could possibly be given well i'm joined today by vj balasubramaniam he's a professor at the university of pennsylvania in the physics department and also by kitty ferguson author of stephen hawking an unfettered mind and kitty i'm sorry i had interrupt you before the break there but you were telling us a wonderful story about a time of year wedding writing a book with professor hawking so many wonderful stories to tell but i wasn't writing a book with him this was his book the universe in nutshell and i was called on to help him make it simpler and so as i was saying we had the two computer screens in front of us in his office the communication screen stephen uses to do communicate you know talk and the other one with his manuscript of his book as far as he's gotten he'd gotten with it and i would point out a certain paragraph or a sentence and i'd say stephen that that's too difficult we gotta find a way to put that in simpler words and then he goes he would takes him a little time to answer with his machine and he the answer would come it seems perfectly clear to me.
"stephen hawking" Discussed on PRI's The World
"I'm marco werman it's the world you've probably heard by now british physicist stephen hawking has died at the age of seventy six his insights shaped modern cosmology and it's by curious audiences around the world in the millions for most of his life hawking suffered from lou gehrig's disease which affected his ability to move and speak that's why he used a speech synthesizer to communicate my bbc colleague rebecca morelle has this look back at hawking's life and work hello my name is stephen akin the instantly recognizable voice of the cosmetologist he became a cultural icon stephen hawking physics to the mainstream happen to show that thomas no it has beginning in the bank black holes inspiration to many for completing all of this despite a debilitating disease success of fields than which disabled there's no handicap was at university that stephen hawking's talent for science begun to shine through he found physics ridiculously easy steven's mother isabel spoke to the bbc in two thousand and two i think stephen living normal young men he likes parties pretty girls own pushy ones we like to venture and he did to some extent like work but they will already signs that something wasn't right and while studying for his phd at cambridge university he was diagnosed with a form of motor neuron disease a degenerative condition that causes progressive weakness a muscle wastage the astronomer royal martin reese was a postgraduate student with stephen young man already walking with difficulty who is embarked on his thesis and was told that he may not live to finish his phd but he defied this progress on went on to make his biggest theoretical breakthroughs supposes greatest single achievement what he said he wanted to have inscribed on his gravestone wasn't equation which linked together three previously unconnected ariza physics linked together to gravity quantum principal and terms an ethics this is a socalled hawking radiation.
"stephen hawking" Discussed on On Point with Tom Ashbrook | Podcasts
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"stephen hawking" Discussed on On Point with Tom Ashbrook | Podcasts
"He's really the the major discovery of stephen hawking's career and that's has transformed our understanding of black holes and gravitational physics so this was the the first attempt to combine professor reality you still there it looks like we may have lost that line with him we'll we'll pick that up again we'll call them up again in cambridge england we're talking about the death of scientist stephen hawking he died early this morning in cambridge england at the age of seventy six let's turn now to kitty ferguson she joins us from bluffed and south carolina she's author of stephen hawking an unfettered mind and stephen hawking frequently introduced her to the public as his biographer kitty ferguson welcome to on point hi meg i to be here thank you for joining us today again on sorry though it has to be around a professor hawking's passing so i mean you were hearing professor harvey rail there describe sort of the central most famous discovery this stephen hawking made about hawking radiation and all that energy that black hole spew out to space i wonder if you could just pick up a little bit where he left off why was that discovery such a big deal it was one of the first discovered i think what he was about to say was it had combined cosmology or the theory of relativity even with with the quantum theory in a way that hadn't been done before now that that needs some explanation but my memory of that reading that in a brief history of time and my memory is my daughter at that time was eight years old and trying to do a science project and we pretended we were those particles and one of which fell into the black hole money which didn't and that was that was shortly after i i met stephen hawking think in one thousand nine hundred nine so yes it's it was a very important discovery and i think everyone considers that his greatest contribution and but in his greatest scientific entre bution i think his contribution went way beyond on science and i i one of the things that i've always been impressed with him is not only does he want to convey his science to the general public to what he calls the ordinary people but he wants to convey the.