And in school it is still here I often live it will be Chelsea on penalties to win this if. This is B.B.C. 5 Live. Fighting starting Good morning Jeremy Corbin set up plans to prevent the U.K. From leaving the E.U. Without a daily labor leader hopes to win a no confidence vote in Boris Johnson become a caretaker prime minister and then call a general election he's written to opposition party leaders and Tory rebels asking for the cooperation form a Conservative M.P. Sarah Wallace to this join the Liberal Democrats she was one of 3 Tory M.P.'s who left in February to form the party which went on to become changed U.K. a Political correspondent Jonathan Blake it's not too much of a surprise that she has finally decided to come on board and add one more and pay to the Lib Dems numbers in parliament she says it's a natural home for and it is really the place where I'm pays are going where they can find a natural home to argue enthusiastically that the U.K. Should remain in the European Union 6 people have been arrested in Newcastle on suspicion of murder after a 52 year old man was killed in the city center on Wednesday evening police believe the victim was stabbed researches of fun that tiny particles of plastic are invading seemingly pristine environments a study in the Arctic and in the Swiss and German Alps has shown that leader of melted snow can contain tens of thousands of micro plastic particles scientists say they're washed out of the atmosphere by SNOW Dr Brice lace is one of the scientists involved for us it was kind of a punch to the stomach to see what looked like a normal sea ice core and such a beautiful pristine environment but just chock full of this material which is completely foreign to the environment chicken boxes carry mornings about the dangers of knife crime have been sent to take away is in England and Wales as part of a government campaign Labor says the plan is crude and offensive. League documents show a score of around 55 percent is needed to get an A in this summer's A level math paper set by 2 of the biggest exam boards at Excel and O.C.R. Results are published in England well the Norland later Jeff Barton's from the Association of School and College Leaders all of this talk about rigor and it was almost kind of a matter of talking the government about raising standards and so on means we have obsessed with making exams harder and harder it's not been good for young people who have been very much destabilized and worried about it and came out in anguish in some cases because the exam felt so hard and it does feel to me as if lessons need to be learned to make sure papers are not too difficult impeach him. And dentists Raskin schools in England to help them fight against tooth decay by removing all sugar from their menus the faculty of dental surgery says figures show that in the past 3 years the condition goals more than 100000 hospital admissions for young children time for the sport now with but he Glover back up goalkeeper and some assigning added and was the hero as Liverpool be Chelsea 5 full on penalties to win the Super Cup and in some Bowl it was one off to 90 minutes with Sadie I'm on a and Georgina scoring in extra time making it to all every penalty in the shootout from the back of the net before Tommy Abraham's effort was saved by address on who was without a club just 2 weeks ago well that save means the Champions League winners lift the Super Cup for the full time in a history it was also a good night for Stephanie fractal she became the 1st woman to officiate in a men's major European match elsewhere B.B.C. Sport understands bassline I'm Rael Madrid have made unsuccessful office for P.S.G. Forward name all Barcelona believed to have authored 92 point $4000000.00 pounds plus Philip Catania and filming then Captain Alec Stewart says Joe for is a special talent but we can't build him up into something that he isn't yet the weather got in the way of England and Australia 2nd Ashes Test play was abandoned without a ball being bowled despite this Larry pace bowler was presented with this fast England cap confirming that he will make his Test debut this is B.B.C. Radio 5 Live on digital B.B.C. Sound Smart speaker. The weather Thursday is going to be largely drivers sunny spells might be some showers in the north in the morning but they should clear away as the day goes on average highs but 70 Celsius B.C. Fine line he actually is the bank and I would say. That they're doing great Jags Felix one Jimmy Anderson for an alternative look at the options would you back yourself to take the final cut you know more than Vodafone about their absolute. God and so far I was. See you say he's a sale and this download unsubscribed now using the B.B.C. Sound is actually saying. That the this is Telus B.B.C. Radio 5 Live on the 1st Wow. This is a photo of 5 live on Dalton at a bio in coming up in this out of the program will open up the phone lines drug call phone in sunny questions of the natural world told the scientific world in particular to feel free to propose him to go to call 180-859-0969 extension 3 which is our phone number 000-808-5909 extension 693 you can text Dr Call 185058 you can e-mail dot to call up all night at B.B.C. Dog care if you like secure phone number in the e-mail and we'll call you back and get you on as he could talk to the doctor directly this from one of our listeners. Can you explain to me in dummy lay man's terms. It's kind of terms I like as well what is the main difference between a vein and an archery I know one carries blood from the heart around the body via the lungs and the other returns about back to the heart but what was difference thought to call good morning good morning doctor thought mustn't he remembered realize that we have still got to make for our inaugural cup of tea some coming over to London in October and in December and I look forward to making you my new B.F. If we have a cup of tea and do you have to do with tea leaves or tea bag while I'm on the green tea at the moment I'm on the green sea but I don't mind the tea bags or loose I don't mind is. How could you Dawson you've got to get to take place and we're told by the group we will bring you to awful sight of a lot and it's. I be waiting for that straight through nearly 60 years now you know we will get there. And now you say about our trees and vines I said firstly you have just in the skin alone 100000 kilometers of blood vessels know that my skin yes that's 2 and a half times around here because the circumference of the earth is 40000 kilometers you have 100000 kilometers of blood vessels and this is the arteries and as you quite rightly said they carry the blood from the hot so the blood from the heart has Firstly lots of oxygen and secondly it's at a high pressure and so goes from the big fat artery you know the diameter of your finger or you thought depending on how fast your fingers a thumbs up comes from the main artery of the heart there you are and it keeps on spitting in spitting and spitting and it goes from the big outreach the order into smaller arteries and they all get their individual names right he'll break he'll carotid set up and then they go into smaller blood vessels which are called here Riyadh's now which will back off for a 2nd these are not plastic pops these pipes made by living creatures that have cells in the wards So imagine that you've got a whole bunch of cells and you lie them out in a flat sheet so you have told Skinny cells or you have flat cells eventually got some flat cells that flat like a couple studs you lay them out in a flat sheet of a sheet of paper and then you roll it into a cube. And then in most cases you have other structures around them like muscles so they can contract and open up so with regard to the tawny arteries and arterials in your skin on average a few percent open all the way at any given moment and then 5 minutes later a different few percent and in 5 minutes later a different few percent and you only have them all up in the same time when you're in a sauna and sweating or crisis and you have the memory all closed when you've fallen into the North Sea and you're freezing it was a really cold lot or something like that but in general a few percent are open so then the blood goes into the arterials a negotiator the Kopitar is or the capillaries as the Americans fish we call them now these capillaries capillaries a tricky there 5 Mark runs in diameter a mark on is a millionth of a meta house that well hay is say 50 to 80 Mark rods so they're about 110th of the thickness of a human hair and you can see them with the naked eye so the Peri's are 5 Mark runs in diameter but the blood vessels are there the blood cells the red blood cells this 7 Mark rounds they bigger and have a get in they squash. And that's because they're lastic and after about $120.00 days they lose their US to city get picked up by the plane get recycled no story so they go through the computer East and liquid goes out and then comes back in at the other end and oxygen transfer happens and Scott the hard drives go across and private planes and vitamins A lot of stuff and then you have the collection now it's given up with oxygen it's given up its food and now it's going into a valley heading back towards the AHA is heading back to the OP to successively bigger vides against through the Capri than the venue then the little vines each of which have their own name if you're looking anatomy take a book and then finally into the big veins and then finally into the vena cava and then you're the superior vena cava coming into the heart from above the inferi of in a cave a coming from below from your legs and then they go into the heart and in the blood gets pumped up the pressure and the oxygen and relax generated and this takes a live in seconds so as to lift the hot the air out and in seconds via its back again it's given up its load of nutrients and oxygen so that's the basic difference between the arteries which carry the nutrient rich oxygen wreaks rich bloody blood Al to the target organ and the veins which in carried back to the heart to be very top up again was strictly speaking in layman's terms in not just layman's terms with lame dummy layman's terms. Rather than dummy the way I think of it is like a 10 year old with a sense of curiosity but no knowledge at all about anything in the world without it without any astronomy so it's the people who have a sense of astronomy curiosity his work the people who would you name your old next . Door The 10 year old 10 year olds now you know how clever they're getting their A level results that runs a day in just a few hours trust me anyway I think that time of year for things to go through their exams 10 year olds. Are simply for the poor things and I think it's kind of unfair but we'll talk about them other time yeah it's true that I would say this might be a leading question you know from Stuart who is in central Scotland I was expected to say well what's new this is particularly leading I think but could be wrong dead don't call reports from Russia suggest that an accident involving the testing of a missile engine resulted in the release of radiation where would the radiation come from I am very curious about that myself. So. On one hand in the fifty's and sixty's the Americans tried to build a nuclear powered plane on the grounds that it could keep on flying indefinitely. Now there were a few problems with that firstly the nuclear reactors of the day were very heavy and needed a lot of shielding so they didn't hit I have always cut back on the shielding and have in their own Li min then think of having women how unfair past their peak fertility who don't mind getting a bit of cancer and will give them a bit of a higher than normal righty ation does and they never actually meant he judged to get a nuclear powered plane to fly there is a book on this as a fictional book is called steam good steam like the stuff that comes out your Kindle bird thing the flaws of a book is a fascinating book and it is a fictional version of how they managed to get a nuclear power plant a flaw and all the things going on with it then a year or 2 ago the. Boss of Russia called a city a president or prime minister or is they've heard of a lot they've got a president and a prime minister but President Putin became the prime minister for inside because the Constitution didn't allow him to be the president forever and then after being prime minister for time he came back as president again so him and the Prime Minister's what jobs are a few years but is president it's all about. Says a President Putin or when his promise a few years ago came forward with a whole lot of statements about enhanced military capabilities of the size of of Russia one of them was about hop a sonic air or craft and hop a sonic basically means 5 kilometers per 2nd and up whole different ballpark when you're dealing with a vehicle a miss all traveling at one kilometer a 2nd. Those As far as kilometers a 2nd and in a normal commercial flight you're doing one kilometer every 4 seconds so it's a whole different ball park 5 kilometers a 2nd 20 times faster very difficult to deal with and there was a bit of an upset earlier this year on that so there is countries around the world astride the United States cetera Russia they're all working on Hop a Sonic and what they could do is get a hypersonic plane to flawed hops on it vehicle to fly but the drag was so great you know because of pushing through the air at 5 kilometers a 2nd they could achieve only one or 2 seconds of where the propulsion was greater than the drag and see one or 2 seconds yet that's all they could do and then suddenly this year the Chinese came out and said that men should do it for 5 minutes and everybody got heaps scared and instead of trying to throw a lot of money at Hopper Sonic's and the other thing the president Prime Minister Putin said was We will have all we have nuclear powered vehicles it wasn't clear with. Or aircraft they can stay in the air definitely indefinitely that's what he said now there's what he said we have no proof that such a vehicle exists now we've had a report that there has been a radiation leak from a vehicle which is appears to be amiss also doesn't have humans in it now was it a regular miss all with a nuclear warhead then crashed while testing it releasing the right activity or was it a nuclear powered missile at the moment we got nothing and this is a person call Sweeney or Sweeting or something of that who works in this advanced nation British writer and also Jane's aviation He works for them as well whatever he says I'll go along with all of the expert but I'm very curious about that as well I'd like to see what is going 108-085-9096 extension 93 that's a number if you'd like to pose a question from the natural world or science to Dr call directly as Steven in Leeds is doing good morning Steven molding good as we. I welcome to say than sorry that was Dr Karl O'Callaghan inside that home am I thought as like Dr Steven as we call you Stephen things fine. Have called question about Hubble constant. Has a scientist has measured it seen 3 different ranges measured against the culture Mark Weiss backgrounds as against distant graph galaxies have relatively in a galaxy is and they keep coming up with 3 different values for the Hubble constant . And the more data points thing may make it coming up with. More accurate results and still saying different values for the Hubble constant. MEMBER Yes Yes And I think it's obvious why autos Yes and not taking into account general relativity and how if you know a whole Jewing the universe. Just will do his complicated. Talking going old to do with clocks general relativity states that the further you are in the gravitational field explode the clocks from. If we would have had a saying is. When you look further and further away you're looking for them for the backing sign. Because you're looking for them for the backing sign you're looking at then so you can if a all the characters were closer together. And when you're looking at the costume are quite back around absolutely to the speck in time you can look so it's the closest together everything is sold as han a frightening event or trauma filled. Of aggressive right so the Hubble Culson really isn't the constant. Rod OK my points Rod said OK so you. Would have agreed with you 2 weeks ago but now I don't because a gardner because a 11 make sit me stright OK. All you want to know process well. OK Brian Schmidt OK you know he discovered 70 percent of the universe you know the expanding universe you know the dark energy that makes it expand faster than before and he makes it work on through. He makes right want to. Believe it exists. Just again making knowing the effects of general relativity. Let me say categorically having spoken with people whose whole lot is general to Vittie that you're wrong in their living let me try to buy one thing on you're ready for this day we're going to blow your mind you're ready for OK go ahead now the background you know about conservation of energy say applying belittle pulls and you line up you've got the billet bowls the same saws and you bang with the Q and the ball takes off site 10 kilometers per hour and here's another ball and that ball then you know N. G.'s transfer conservation of energy you lose a little bit in the collision and take over sign 1.9 kilometers per 2nd or something like that you're with me. And with the ACA are found this out. To not doing a new show called The Color of electrons will be presenting in London shortly in a car but it goes like this OK conservation of energy now he comes the statements going to blow your mind and I didn't even know this conservation of energy does not hold in general relativity just think about that. Conservation of Energy does not haul on the general relativity of your general relativity situation you can have $1000000000.00 ball coming in at 10 kilometers a 2nd and all it does is run only into another 1000000000 ball which can take off at a 1000 kilometers per 2nd and that is allowed in general relativity and will blow your mind the moment doesn't float my mind yeah really what that you know you play billiards and you put a certain amount of energy in the ball and it takes over 10 kilometers a 2nd it's another ball which then takes over a 1000 kilometers a 2nd. So the point is that. No no certainly. No exact same ball you know conserving mentum and energy does not have to be conserved in general to Vittie isn't amazing So firstly speaking to people whose whole lot is studying general to Vittie unlike me who just breeze where I can and we completely have I say and have talked with these traumas that I have taken account of all of those effects in measuring the Hubble Constant So let me just talk for a little bit about the Hubble constant so the Hubble constant is relating to how quickly the fabric of space time is expanding so think about getting a cake in you got some and has some raisins in it and you put it in the oven and it all expands and expands and the dough expands and moves father part starts billowing out of the top of the coffee in the Cake Tin carrying the rice ins with it so instead of rises have galaxies and instead of the diode the pastry have the fabric of space time the fabric of space time is expanding at roughly 70 killers kilometers per 2nd for every 3 roughly 3000000 light years. So if you go and observe the universe 3000000 light years away and you find a galaxy there it Pete is to be moving away from his on average at 70 kilometers the 2nd but it's not actually moving across the fabric of space time is not plowing through the dog the dough he's carrying it with the fabric of space time is expanding with it and carrying it with it and so you double or triple the distance and y