8 Burst results for "Three Hundred Kilometers Per Second"
"three hundred kilometers per second" Discussed on Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas
"Were you know running the vietnam war for a long time. There's no obvious idea that. Because if kennedy had been robert kennedy. Bobby kennedy had been elected. He would have gotten us out of vietnam. Politicians are tricky. They say things and they don't end up doing them all the time. So i don't know enough about that era to say how devoted or how influential he would have been actually make that happen. And as far as watergate is concerned watergate was an example of agree gio abuse of power illegal actions on the part of the president but it also led to reforms of the system. You know the ability to have special prosecutors and things like that so maybe it would have been worse overall. If watergate had not happened if i were to imagine ideal histories i would have wanted to stop some terrible massacres tragedies genocides right like the holocaust or various other terrible things that happened. There is a little bit more cut and dried to me that if that had not happened the world would be better on the other hand. I don't know like if it comes to either assassinating or not assassinating one person. I'm not what not at all sure. What would need to happen to guarantee that the holocaust would not have happened. Yeah you can say will kill baby hitler. That's the usual thing to say but it's not at all obvious to me that the social forces wouldn't have led to something more or less similar to what actually happened in world war two. I don't know maybe they wouldn't. But i just don't know claudio slam says about a moua the interstellar visitor. We had that. We talked about with envelope while his speed was notably high for solar system standards twenty six point three kilometers per second relative to the sun. It's still very low. Compared to the speed of light would we have noticed anything weird had the movie was dash been a hundred thousand times faster. Is it conceivable that a material object can be accelerated to relativistic speeds by accession of pushes from stars or other massive bodies so it certainly would have been much weirder if a who's been one hundred thousand times faster so if you think about what is going on in our galaxy the stars moving around and you know with respect to each other and around the center of the galaxy the typical speed you should have in mind is something like a couple hundred kilometers per second okay. Two hundred kilometers per second three hundred kilometers per second something like that. That's the typical speed that stars and other objects have in the galaxy. So that's the speed. You expect everything to have with respect to everything else on average okay. This is why we made the point. That in some sense move. Speed is anomalous. Low twenty six kilometers per second is lower than three hundred kilometers per second but if it had been three thousand kilometers per second that will be an all mostly high and that would be weird. So yes that would be weird. Is it conceivable that something could actually be celebrated that fast. You know it's conceivable but it's very very unlikely Things do get pushed around by passing by stars but it happens slowly and gradually An every little pushes very tiny and sometimes the pushes go in opposite directions from each other right so you certainly do not expect things to be accelerated to very very fast speeds and i should go further than that. You certainly don't expect things to be accelerated to relativistic speeds near the speed of light. Because once they're accelerated to the escape velocity of the galaxy. They escape from the galaxy and they're no longer being accelerated by a gravitational assists from nearby stars. And things like that so there is an upper limit to speeds you expect for things that are galaxy namely the escape velocity. That is fair in christie's says a priority question. You guys are using up your priority questions..
U.N. Warns Sexual Violence Being Used as Weapon of War in Ethiopia's Tigray Region
"Disturbing reports of continued to emerge of widespread abuse including sexual violence against civilians. In ethiopia tigray region the development comes nearly six months since conflict erupted there. The children's fund unicef said on tuesday. There is no end in sight to the conflict. Said agency spokesperson. James elder after returning from a visit to northern among the many victims was a sixteen year. Old girl called maier-witt. Mr elder told journalists in geneva she had walked three hundred kilometers could be brought out on her back from the west of the country amid pretty intense fighting it was three hundred kilometers and broken flipflops stories about she a star in physics and now she searching food and hasn't seen a classroom in a year more than a million people have been displaced and continuing fighting has restricted humanitarian access. And the opportunity for people to return home. According to the un agency sexual violence and gang rape is likely widespread with one center for survivors. Taking three witness statements. Day between the start of the year and april. The conflict is the result of months of escalating tensions between the ethiopian government and the dominant regional force. The tigray people's liberation front teepee which culminated in prime minister. Ahmed a military offensive after rebels attacked a federal army base in november
Sound Of The River
"This time a story a story about a river a very special river. It's the river you can hear flowing in the background through a forest somewhere in New Zealand. The river you can hear is the Wanganui River. This recording was made recently by this woman. My name is heike like hope and Mima Danish audio storyteller documentary-maker Pica held a spent a lifetime making documentaries and stories in sound documentaries and stories in sound at a full of characters places events but almost always in our work there are also the sounds of nature like stories. That have this ECO. Centric quality where it's not necessarily humans that are in the middle where where there's When Nature Plays Part? I've always had since I was a kid. I've always had this feeling that nature sort of reflected itself into me I I would feel like a mountain I would feel like make I would feel like it's three and I've had since early childhood SLA very strong sensory experiences from Mater. I think sound is fluid. It spacious like nature is so there's something that's always been something about working with sound that mirrors this perception I have of the world and that mirrors may and can connect them like bay sometimes in sort of pristine moments also connect within me emotionally or as ideas. It's something that affects you when you're there. So how can you tell a story where whether it comes across where it's not just backdrop or pretty picture but it's actually a strong force a character almost in the story documentaries and stories come from very remote places very often places like the far north of Canada Greenland places all around Scandinavia and across the North Atlantic islands? But her latest project takes back to a place where she spent time growing up. I've just started working on a project. Actually it's a liar. I feel like I've been working on it for a long time of wanted to work on it and it's been on my mind. It's a project about the Wanganui River. It flows from the center of the North Island of New Zealand to the coast to the task. Mansi three hundred kilometers or so the river special to me because I grew up in New Zealand lift by this river and my family immigrated to New Zealand in the seventy s and we lived in in Wanganui which is the town that where the river flows into the sea and all trading station built by European settlers. So for me. It's it's personally special. And then I learnt that one canoeing river have gained legal status as a as a human entity which means that it has the rights and duties and liabilities of a legal person the Wanganui river now a legal person or legal entity one of the first natural places in the world to be given this sort of legal standing accepting a river as illegal person presents. Many challenges to the way we think about the world and it presents challenges to documentary-maker how can a documentary portray the river itself as a character as a person as an entity? Where do you begin? Did you know that the river is a human being to us? We've always had signed from the mountain to the say I the river as May. So how do you tell a story whether whether river is the main the center? I'm not sure how to that practically you know. How do I connect with the river and and figure out why didn't want to say
The Future of 5G with Paul Scanlan CTO Huawei Carrier Business Group
"Welcome Paul thanks very much under now. I've just been very fortunate to sit around a round table with a bunch of influences. And you're quite candid about you know the challenges that you face in the industry but this podcast is about the future of and I wanted to talk about the future of Five G. Sofa my listeners out there that may be in markets where five gs and live or just been launch. How WOULD YOU DESCRIBE FIVE G? And why's it better than four g you know Andrew it's This is probably the most misunderstood technology. It's been bandied around as being everything from the you know the evil of the world to To the savior of the world right and I think the answer probably leaning towards the latter. Which is you know. It's something that really will transfer so I like to think of I five as a platform for transformation. Went talk about it as a speed thing or this thing or that thing. I'll just terrific platform for transformation. Everybody says you know five G. It's faster it's this that and everything else when we talk about them. Do you operate four G. And how do you operate five G? When we operate forgery generally we designed it for this thing called twenty megahertz of spectrum because in three G it was five Megahertz Chunks of spectrum. And therefore more megahertz means you get more spectrum. Generally you get more bang for your buck when we talk about five Jay. We're talking with starting with one. Hundred doesn't mean account. Wigan Eighty or seventy six fifty or ten yep but it was originally thought of. Let's try it for for for one hundred MiG. One hundred twenty two one mistake now. Of course you've got the up link in the downlink say have maybe it's about two or three to one put it in called a spider spider. So you have about two times or three times more spectrum so you're really not comparing for and five Jay in like for like we learnt Andrew many years ago five years ago in doing you think Oh. Wtt X. Wireless to the something. We learnt that we could provide wireless communication as a sort of an alternative center. A Better Time. To market than fiber by deploying wireless buys technologies to provide home-based broadband solutions. Because you build an anti put an antenna and you can sell it so cash and carry you. Get Five Mega. Hit megabits per second team. Maybe one hundred right now. This fixed product is competing with the mobile product. The second one is the bane with these not there so you don't really have enough resources but we learned very quickly that if we were able to put more antennas in we call the massive. Mimo. Then you end up with a better better result. Suddenly you can offer not three hundred customers. Ten makes you could offer three thousand customers teen makes and the more customers more Abu more money simple. It's all about money so now comes five G. so five G. The first thing we do so we've already got some empirical evidence about how much more efficient having one hundred megahertz of spectrum is in this. Wimax area. We're using two point. Three two point five. We've picked a different spectrum. Three point five GIG which means three point two to three point. Six three point eight. Maybe four point two to four point six just relishes the higher the frequency the more efficient it can be she can get more bandwidth through the high frequencies. Would you get you get larger amount of contiguous ECKSTROM? Yes and understand a little bit about how breaking spectrum up into blocks become very inefficient but if you have a big block of spectrum absolutely right and that's why the millimeter wave even higher stuff is even far more beneficial because you have a clear one gigahertz and suddenly war instead of five megs of got one GIG. Simple physics tells you you're GonNa get more bang for your buck. Yeah so five. G. Comes along with starting the premises. One Hundred Megahertz Huge leap ahead of four G and we've got these improvements inefficiencies. So that's what Linda lend lend itself to the high throughput but wait. There's more right and the more big comes to about things like lighten city and massive connections. So we could already see that the challenge is always the always the latency at the air interface and the reason for that is because you could imagine from a base station probably in developed countries. You can have five back to the cornet work for the back to the corner. Work five milliseconds into into the top rate Japan. Top to bottom ten roughly these sort of rough guidances of how how much delay you have across these areas. But if you want to do things that are more interesting like connected car. You don't need five Jay for car but You know if you want autonomous driving. It's one of the options. Yes you could use other methods. But that's not the the most important but if you take a robot right if you've ever shook the hand of a of a rebel with articulated digits but the first thing is if you want one hundred kilos of metalwork comes toward you put something out the first step back of course when you put your hand out and you grab it if the latency is not really shop. Then by the time it gets feedback in squeezing your hand it's probably to light my crusher hand. You got it so we need latency so there's a practical example. Yes but you have more certainly connected car within a couple of meters. The shorter duration robotics interaction. Let's talk about the medical profession if you wanted to do telemedicine remote medicine. Yes so between a practitioner. Highly capable person. Let's take a simple like it's not really simple. Let's take ultra ultrasounds. So you have an expert a technician. The journey woman sitting there with a couple of hundred grants with equipment. What about the village? That's you know two hundred dollars or three hundred kilometers wide. So we just discussed about this thing called latency. What about if I wanted this person to do some remote monitoring of a man or a woman or somebody on the on the I and we've got these tactile feedback devices now? Yes but the person is a couple of hundred Roy. So you imagine. There's a basic person. Triage a stripping. His thing to your body for a couple of thousand dollars which is cost effective. And you got the expert with brain paranoid analytics copy with scopes and everything and now. He presses and two hundred kilometers lighter. It's pressing on you. And then by the time he gets the feedback. He's got to realize that I shouldn't push too far because it's the robot prom you don't want to crush the got it so this this problem. So this is lighten savings on. He's a couple of industries and a couple of sectors that where you can feel that latency. We important robots inside the factory today factory in factories. Andrew haven't changed in one hundred fifty years. Everything is serial from the day we industrialized in the UK. Right I give you the material you do your bit. You Pass it to him. He passes it to her. She personally what happens today? Robotic PLANT ROAD. I does this positive robot. By-pass Robert C. So let's suppose this boardroom. Were nail which vacant and a couple of hours is the Knicks factory from twelve six income the robots willing themselves around connected with five G. They're from different companies. Kawasaki. Ibb ETC. And they're all connected to the cloud by five. G. So the latency is really small. And of course if you take beyond this. This is not thing of few connections to multiple connections per person to devices everywhere. Lamppost ties dresses salt pepper. Shakers everything the cup of tea bags or connected and they will be. You might think it's stupid but you know today it'll get down to something you know a third the size you now. Then everything's connected. If you have that competition of connectivity things in a cell a mobile cell with people you have come back to the first. Problem fixed wireless existing and with mobile paging competing for resources. And it's signaling resources. Yeah and you won't have a few thousand people per sale. You might have hundreds of thousands but the thing with it is. You don't need the speed because some of these things are transmit low data rate but if you've got millions of them in the same spot they all want to compete for radio spectrum to say. Hey I want you to get your data you got it and so you're quite right after that. The data rates are pretty small and listen to a couple of K. kilobytes. But you have a lot of them and it's a signal you know. I've got to wake up not communicate to the end so it's a bit like ceiling overhead traffic. It's it's competing for this. Some of the data so there's a lot of optimization bottomline so affected that in so that's why you have speed latency and throughput as the three key components of five G. But what nobody ever talks about is the social impact five g. and the social impact directly about energy. So you know. Today we're at the product and solution launch of lawyer and we announced that we have a five G. product. That is now. It went one year ago. Forty kilos to twenty five. From two hundred Megahertz bandwith to four hundred megahertz bandwidth but also consumes about the same amount of energy as four J. site. So you've just gone for something that's twenty to one hundred times better for the same amount of energy so some of the analysis that's been boy very specifically by a company called steel partners a consulting company here in the UK. And they've done some analysis based on you know while always products in an older competitor's products looking at all the networks around the world and their energy consumption and a very simple tagline is if you keep building four g networks you double the carbon footprint the planet but if he's five g. It flattens out and it starts to reduce in five years. That's not a bad reason for deploying five G. above the other I think you're great storytellers. It'll just had the opportunity to spend an hour and a half in the room and you. You mentioned the point about your station equipment. Going down in White told a great story about why wife now people know about while we for all different reasons but I love the story about how the thing dropped in. Share that story so I was at a meeting in headquarters and the CEO is sitting at a table with with a number of US including the product and they director in the product. Our Day director was showing the new version of the first five G. Base station that we're going to be launching in a few months and the white was forty five kilos Andrea and he said left on the table. What do you mean forty five kilos? Don't you understand occupational all health and Safety in Europe? It's forty kilos. Everybody looked at him. What does that mean and he said you need a crane. If you need a crane to install this. Do you know how expensive it'll be for our customers? They want. And how the time delay plus the expense and everything. Everything's the wrong wrong targets. You know the capital equipment costs too high. Three months later are endangered. Came back in forty kilos right. Thank you very much forty kilos. We launched now with twenty five kilos and he just on stage and said. Do you know why it's twenty kilos because a person is allowed to carry a twenty kilo product and install it and you know so we're always thinking about how do we improve person the customer's business. It's not about. We've got a great product you want to buy it or you buy this product because it's got these features we're always thinking about from the customer's perspective and generally everybody has the same. Kpi therefore KPI's it's called Revenue Prophet brand market share. You want all of those things. That's what you want right. That's the key metrics so we always think about those components whenever we building products or solutions or focusing on customers. And things like
When Precision Counts
"I'm navigator. I compute trajectories a spacecraft figuring out where they're at and we're GONNA go. This is innovation now. Bringing bringing you stories behind the ideas that shave our future precise radio navigation using radio frequencies to determine position is vital to the success awesome deep space exploration missions. Here's Todd Haley Project Manager for NASA's deep space atomic clock to explain why precision should matters those signals traveled speed of light. That's three hundred thousand kilometers per second. So if you're off by a millisecond you'd be off by three hundred kilometers and measuring the distance so that spacecraft so it's really important that you have extremely precise timing on your signals de sac deep space time clock. I takes the UH technology we have in our ground atomic clocks packages it up into smalls based craft ready size device the mercury ions in the clock make it the most stable atomic clock ever flown and this kind of precision will ultimately help space navigators like todd pinpoint spacecraft's crafts position anywhere in space for innovation now. I'm Jennifer pulling innovation now is produced by the National Institute of Aerospace Through Collaboration Aberration with NASA and is distributed by w H._R. V. Visit US Online at innovation now dot U._S.
"three hundred kilometers per second" Discussed on Astronomy Cast
"Have an introduction in front of me so you're get up a finger title i am doctor public j i m h senior scientist at the planetary science institute and the director of cosmic was and you should all be mopping boulders at banou dot cosmic laptop and yelling at the r g i reusing need them to mount others and rocks and creators please so we are recording this episode live from indian wells california as part of the all stars party a astra tour and we said that these this episode of astronomy cast it ended up we're going on highest that was a lie this is the bonus prize enjoy a maybe it'll be more things who knows a this is gonna be a weird summer a but if you want to you mean you miss this one unless you're here and then and then using afterwards that's weird a lot but if you want to come on the next trip i'm gonna be going to iceland in january twenty twentythree just go astra tours dot seo they're taking reservations now until the middle of july so if you want if you ever want it to go aurora hunting with me and also glacier hunting and also like icelandic control hunting a you should definitely go astra tours dot seo an antenna we we had a great time last time we went and it was crazy stores we didn't see a lot of awards but i think it's time it's really gonna work so astra tours stuff you an inside up all right a so relativity is one of the most mind bending concepts of humankind attempt to contemplate how different places experience different speeds of time well good news you're taking advantage of it right now thanks to be handing gadgets like you're phone a pamela you wanna talk about some of the super weird ways we actually incorporate relativity into our wives every single day but before we get into some of that let's just talk about like relativity what is it it is eight set of series most famously worked on by why feinstein worked on actually buy a whole bunch of people working together an it describes literally are placed in space and time relative to one another and it turns out the even though we're so close i'm not seeing you right now 'cause it takes the photons of light bouncing off your body a moment to reach me an as i look out further and further looking at people in successive rose pros i'm missing further and further back in time an answer sfo times gravitationally interact with things around the universe their pads get bent and distorted and that gravity field well there's some weird stuff that happens because no matter who you are no matter how fast you're going relative to something else all of us see those photons moving moving at the exact same velocity all right so let me just understands her second so so i'm moving of whatever a you know hunter kilometers an hour your moving ten thousand kilometers per hour someone is moving just a fraction away way from the speed of light and were all watching a laser beam that's been shot from the international space station and were all watching that laser beam and we are measuring the speed of light of that let laser beam as it moves through space at the speed of light even though we're all moving different distances an emmy kissing her everyday experience that is not what we experience with west say a bullet being fired if you're moving closer the speed of light i'm moving hunter commissar we see a bullet moving at vastly different speeds and just more practical terms when were going down the highway we see the cars were passing moving relative to us at ten or fifteen miles per hour unless you're a crazy person but if you're standing on the side of the road you see those cars going sixty to ninety miles per hour anes this difference in how we perceive velocities of cars philosophies of runners relative to our own motion is not true with light no matter who you are lights going three hundred kilometers per second not the law right so and this of course is amazing discovery that deadline stein made an end and i'm sure someone could have bought of it earlier accepted because it's so weird right that that time is the thing that changes this episode is brought to you by bark box for a free free extra month of bark box visit www dot bark box dot com slash astronomy when you subscribe to a six or twelve month plan as a lot of you know i've got two dogs eddie installer eddie was my reason forgetting bark box and month after month of our the two large treats play with esteemed toys and i trained him with each other made in america and canada tasty healthy goodness they came packaged in every box for years eddie loved on his bark box stuffed toys and these high quality play things went through the wash after wash after awash in came out looking awesome and then i got stella she's small and she is a mighty and she likes to read things her there are extra heavy chore toys she recently managed to get one way open end it spiky ball court well it's like getting a whole new toy.
News in Brief 15 February 2019
"This is the news in brief from the United Nations. The biggest you and humanitarian convoy yet to operate inside. Syria has successfully distributed aid to forty thousand desperate people in a hard to access desert camp near the country's southern border with Jordan the organization announced on Friday Jens locker from the office for the coordination of humanitarian affairs or highlighted that. Thursday's delivery to rook ban was only the second time the UN has been able to reach the remote site from within Syria complex, large scale aid, operation. It's the biggest ever carried out by the United Nations in Syria. The mission lasted nine days it consisted of one hundred thirty three trucks in total one hundred eighty of them were loaded with relief supplies and fifteen carried logistics support. There were more than three hundred staff volunteers and commercial suppliers that took part it took more than two months of advocacy and negotiations with all parties to ensure safe access to the roof. Site rook ban is around three hundred kilometers from the capital, Damascus and one of the last remaining remote and challenging locations to reach inside Syria. According to you and agencies supply routes are often blocks and the majority of people at the site are women and children some of whom walk barefoot around the camp despite the freezing conditions as surgeon sexual violence in south Sudan's unity state, targeting victims as young as eight years old has underlined the need for government measures to protect them, the UN human rights office OH Chr said on Friday, despite the signing of a peace deal between the warring sides last autumn U N investigators found that at least at one hundred seventy five women and girls have been raped or suffered other sexual and physical violence between September and December two thousand eighteen the actual level of violence is likely to be considerably higher which Chr spokesperson Rupert Colville told journalists in Geneva. He cited the testimony of victim one of many to be raped while fetching firewood, food or water. She said. We women do not have a choice. There's no Turner tit for us. If we go by the main road, we're raped if we go by the Bush, we have raped I was raped among others in the same area repeatedly on three different occasions. We avoided the road because we'd went horrible stories that women and girls grab while passing through a raped the same happen to us. There's no escape. We're all right. According to a joint report by h Chr and the UN mission in south Sudan on miss attacks against women have decreased significantly since the peace accord was signed on the twelfth of September. Nonetheless, warns that such incidents are endemic northern unity state on the border with Sudan, creating a sense among communities that it is normal to be a victim of sexual violence. The surging conflict related sexual violence is attributed to many factors, including the breakdown in the rule of law linked to the destruction of livelihoods forced displacement and food insecurity after years of civil war. But one of the main reasons is the. Large number of fighters in the area who have yet to be reintegrated into the national army. According to the peace deal and finally the arrest of the head of a prominent independent news outlet in the Philippines is concerning and such cases should be dismissed by the country's judiciary. The UN human rights office or HR has said Mario racer critic of president Rodrigo Detaille and his administration has been charged with libel. Although she's been released on bail. In a statement UN spokesperson Rupert Colville called for an independent review of all charges against MS Raza, and other media professionals in the Philippines, and he charges that appear to be aimed at preventing journalists from undertaking. Their profession should be dropped immediately. Mr. Colville added in the interest of the public's right to information. Daniel Johnson UN news.
Police: Family of four from Iowa found dead in Mexico
"In mexico will family of four from iowa who went missing after traveling to mexico found dead in the condominium in a tourist complex in that country the family kevin wayne sharp forty one years old amy marie sharp thirty eight sterling in wayne sharp twelve years old adriana maria sharp seven at left their hometown of creston iowa to travel to mexico back march fifteenth something happened they were found dead in the condominium the family says the cause of death is not immediately known but the police in the area say there appears to be no signs of trauma a very strange story more than one hundred and forty short fin pilot wales died after a mass stranding on a beach in western australia what the heck is going on there a group of around one hundred and fifty whales became stranded at the hamlin bay that's about three hundred kilometers south of the state's capital city of perth south korea has resorted to drastic measures to try and stop a workaholic culture engulfing it's country the government has announced the new initiative listen to this that shuts down its employees computers at eight pm on fridays to force them to leave work on time well what else is going on these days jerome corsi author of the bestselling killing the deep state who by the way we'll be our special guest tuesday night for the first couple hours jerry i want to get your reaction to things that have been going on in washington over the last couple of days with the mic master leaving being replaced by john bolton as national security adviser what's your take on all this well known john bolton for years george is.