she'd found her self in third, in the race to the line, in her semifinal, of the 1500 metres short track speed sakting final, and christie had to make her move. yarnold is aiming to become the first briton to successfully defend a winter olympic title... she has moved into the silver medal position and only 100th of a second off the gold medal now. she is hoping to become the first briton to successfully defend a winter olympic title. great britain are celebrating winning, a first ever winter olympic medal on skis. izzy atkin who's based in utah in the usa, won a historic bronze, in the ski slopestyle, doubling britain's medal haul at these games. ben croucher reports. this is the face of history. great britain's first silverware on skis. slopestyle was about nailing the rails and avoiding the bumps on the

jumps. this teenager adds substance with style. and raised in the usa to a british father immolation mother, she honed her skills on the slopes of main widget was three years old with tracks like this is taking 16 yea rs with tracks like this is taking 16 years in the planning. before the final three runs, she was pushed from the podium. this had to be flawless. biggest run of her life starts now. every grind and twist and jump with jeopardy. she had a score a good enough for third but could anybody deny her slopestyle silverware? she is down. great britain's izzy atkin takes a bronze. there were a lot of big names in the field and anyone, could have been anyone's, andl field and anyone, could have been anyone's, and i was standing at the bottom of my third and final run and i know i skied the best i could and i was waiting for those last three are forgirls to i was waiting for those last three are for girls to drop, and my heart was racing, but, yes, i can't believe it. believe it, izzy you are an olympic

bronze medallist. fantastic achievement they are. in curling, the men suffered a shock defeat to south korea — who came into this match bottom of the group and without a win but britain went down 11—5 and it means they are out of the top four places, and so as things stand wouldn't make the semi—finals but they have four matches to make the cut and turn it around. i think we need to go back and regroup and talk about what happened in these situations. that is where the game got away from us. there is still a lot of curling to go, and i still a lot of curling to go, and i still fancy our chances if we can just cut in a couple of key misses and keep together really. the women's british team are playing career on the ice at the moment, having earlier won a match today. they are definitely —— they are playing against korea.

it is early on, 2—1 to the koreans after and six, so plenty of time for the brits to turn this around. even if they lost this, they would still be in the top four places. still a long way to go in the curling. here is the latest stone delivered by eve muirhead's team. the fa cup fifth round matches are just getting under way. sheffield wednesday of the championship taking on premier league, swansea. that's all the sport for now. now it's time for click. this week, dancing with the stars, laughing with the stars, and skinny—dipping in the himalayas! choose wi—fi, choose snapchat, choose

a preordered machiatto with almond milk, choose likes, choose follows, choose pizza delivered by a drone, swipe right, swipe left, follow, follow, follow... we're constantly being bombarded with updates, tweets, information and fake news. we are glued to our phones, addicted to digital status. we're even smashing up our gadgets, obliterating them to pieces in a violent quest to rid ourselves of these virtual assistants — our self—imposed restraints. well, it's time to get away from all that, just for a few minutes. this week, justin rowlatt travelled thousands of miles to a village in the himalayas which is getting electricity for the very first time by enhancing the power of the sun. i'vejoined the team hiking up the frozen zanskar river.

we've got an eight—day, 140km trek ahead of us. 0ur destination, a village which has around 50 people, its four houses huddled together under granite cliffs. this person struggles to cook in the dim light. translation: these traditional lights are not portable from one room to another, and they don't cover enough area for the children to read. it also causes pollution. if we had solar power, it would be much betterfor us. the next morning,

and the team gets to work. so, this is the satellite dish, and take a look at this. it's taken quite a beating along the way. it's going to be interesting to see if this works. this is a street light. 0h, you've got street lights? 20 watts. a complete grid? because you get wild animals in the summer and winter. this is a charge controller. tying the grid together is over 550 metres of wiring, but there's a problem. the wire is very thick and it is frozen. it's so cold. it's about minus 15. yes, we need to warm this for about half an hour so that it can be usable. his team is hard at it, threading cables through the tightest nooks and crannies. each home is topped off

with a shimmering solar panel. this is a solar panel and the capacity of the solar panel is 260 watts. this panel is a polycrystalline panel. at any temperature it can charge the batteries very well. so even when it is freezing, as it is now, it will still generate electricity? the beauty of this is even at low temperatures it gives a better current. so it gets better? it gets better. it is like a high altitude desert, so it gets sunbury—on—thames 50 days in a year? yes, in one day it gets nine hours of sunlight. in winter it get six hours in proper sunlight. generating as much power as possible is only the half of it. the other issue is making sure no power is wasted. what's more, the solar panels don't just passively

drip dc into a battery — this system has a brain. remote motion sensors ensure what's generated lasts. the idea is you don't have to remember to turn the lights off, as soon as you leave the room the lights go off. the sun sets, and it is almost ready to go. the new solar microgrid is a big dealfor the villagers. there's an elaborate ceremony. the local buddhist monk, or lama, says a prayer for the system, and then it's time to throw the switch! the hope is the new grid can ensure the future of the village. that battered satellite dish does

work after all, and so does the motion sensor. global himalayan expedition has installed over 250 microgrids in outlying areas of ladakh. after hanamur, we visited one specifically designed to light up the minds of schoolchildren. thank you very much. it is at the government higher secondary school here. hello, kids!

hello, sir! so, they've got an innovative computer system and what i'm going to do is test it by asking you a few simple questions. so i'm going to write them on the board and then you fire up the computers and we will get to work. 0k, sir! right, so here we go. who was atahualpa ? what are brussels sprouts? and when did babur come to india? that's right. get to work! it might look like they're online, but they're actually scouring through an offline internet. so, even without a data connection, these children will learn the sort of research skills essential for finding out information in a connected world, and, of course, it all runs off solar power. there's half a terabyte of memory on here and installed on here is all of wikipedia, ted talks, all sorts of encyclopaedias and works,

works that the kids can use in order to research all sorts of subjects, so that's the heart of the system. but this is the key to keeping it low—power. this is a raspberry pi, a uk—developed computer system, incredibly low—energy, drives, the keyboard and the mouse. so, this is the computer they use. what it means is they can have up to ten of these bright led screens all running on 2a volts, so very, very, very efficient. 0k, everybody, time is up! we need some answers. i'm going to pick on you. so, who was atahualpa? atahualpa was the last king of the inca empire. excellent! very good! what do you think of this system? how does it work? it works very well, and i gain many knowledge from it. it's very useful and it's really easy to operate. i think it's perfect for students of mountain areas. solar microgrids are a great fit

for ladakh, where steepling geography has scattered communities and made them difficult to reach with powerlines. 1.2 billion people globally live without electricity and, for many of them, solar is a perfect solution too because, as we've seen, it can be rolled out almost anywhere under the sun. it feeds the demand for electricity without eating up the planet. but there is a rather unfortunate tradition at the end of the trek. that's right — a dip. hello, and welcome

to the week in tech. it was the week that the uk government unveiled an artificial intelligence tool for blocking extremist content online. and it's notjust airspace that drones are going to be occupying in the nearfuture — researchers at north carolina state university have developed a drone that can fly through the air and propel itself underwater. plus, the winter olympics website was frozen by a cyberattack during the opening ceremony. and the robots got to compete in their own winter olympics. eight teams downhill skiing droids onto the slopes, competing for a $10,000 prize. robots aren'tjust skiing, though. boston dynamics is at it again with a demo guaranteed to freak most people out. its robo—dog can now open doors. that's one less obstacle in the way of world domination for our future robot overlords.

and pig farmers in china are using al to bring home the bacon. using id bar codes on pigs, the ai measures animal health and behaviour, which the developers alibaba hope will improve farming efficiency. and finally, bitcoin might be preventing us from making contact with aliens. researchers at seti, the search for extraterrestrial intelligence, complained this week that the price of key computer chips have been driven through the roof by demand from cryptocurrency miners. with no price drop in sight, we'll all just have to watch this space. fashionably late, apple has decided it wants a slice of the home speaker market, finally releasing its homepod, some two and a half years after the first—generation amazon echo hit the shelves. they've gone for the same cylindrical shape as both the google home and the amazon echo, but it feels and looks more like a premium high—end speaker than either of those systems. that's one of the key points here.

the amount of audio work that apple have done on this device means its key selling point is as a speaker. it is impressive, with a four—inch, upward —facing woofer and seven beam—forming tweeters, each with its own amplifier, meaning it can push sounds in different directions. so it sounds exactly the same wherever you are in the room. what it doesn't do is give you the opportunity to change the levels in any way. if i wanted to push the bass up right now, there's no way of me doing that. and even in a space this big, the sound really carries. what's interesting, though, is even at 100% volume when i can't even hear myself think, siri's still going to recognise my voice. hey, siri, pause. just like that. whereas apple is going to sound quality, amazon, with their years on the market, seem to be focusing on different features. their echo spot is all about one thing — this screen. the latest from amazon now has

the ability to make video calls, as well as doing the usual like play music, tell you the weather and even boil your kettle if you've got a smart home setup. but really it comes into its own as a very nice alarm clock. it's notjust a function that makes these two home assistants very different — the price is anotherfactor. while the echo spot costs £119, the homepod will set you back £319. as is apple's way, the homepod ties you in to apple's walled garden, so, instead of being able to access any music streaming service via voice activation, for example, it will only let you use apple music in this way. so if you're one of the 70 million spotify subscribers, you have to go into your phone and use airplay as a workaround, essentially turning this premium smart—speaker into a, well, speaker. and, as people have been discovering, one that might leave a nasty white mark on wooden tops.

apple's response? choose a different surface, or get a cloth and some elbow grease. now, over the next few weeks, we're going to be talking to some of the gods of the visual affects world. last week, we went behind the scenes of blade runner 20119. this week it is the turn of the oscar—nominated guardians of the galaxy volume 2, and we started by talking about it is truly bonkers opening sequence. # there ain't a cloud in sight... # the beginning of the sequence features a title sequence where groot is dancing in the foreground, and it doesn't cut, so it is on groot the whole time. he's got to hold the attention of the viewers with his crazy little dance, whilst what happens in the background never stops. so we have something like 4,000 frames of continuous action.

we were faced with the fact that the environment was completely spectacular and had to be created entirely digitally. everything that we were inserting had to be reflected, and that's multiple times the computation to compute the light for what's landing on them but also their reflection, and so everything ended up being done two or three times, because of the surface of the world they were standing on. we were delighted to have the opportunity to take on rocket the raccoon. the first shaders that we've got here at framestore, the muscle systems, all of these things had updated in the three years between the first guardians and this one. —— the fur shaders had updated. so, we wanted to bring all of that into rocket, which meant rebuilding him from the ground up,

and yet making sure that he was absolutely recognisable as the same character from the first movie. space being very open, it's very hard to tell how fast things are moving. james gunn is very keen on selling the speed of the action. so, we conceived of these sort of wafts and waves of plasma energy that lived in and around this planet, which we could whip past the camera to really sell how fast the camera and the spaceships were all moving. there's a scene in the middle of the movie where rocket and yondu are in prison, but then, when they break out, they're on—board this enormous, great big spaceship, which of course didn't exist. we had big shots of yondu walking through these huge hallways full of spaceships, and a docking bay with all of the ravagers,

who are the crew of the spaceship, being shot at with his arrow. ultimately, the arrow which yondu is firing works its way all the way around the spaceship. we had to pretty much design the interior of the spaceship to give a really satisfying journey for this arrow to take. it looks like a busby berkeley movie, with crazy camera angles. every movie that we get involved in, we want to be pushing the envelope, trying something new, with the expectation that we are going to get there. old film stock is a treasure trove of historical information. in the case of old bbc programmes, it can be a race against time to find any remaining copy

and digitise it or risk losing it forever. but when producer charles norton was given an old morecambe and wise episode, there was a problem. archivists at both the bbc in the british film institute had a look at the film and essentiallyjudged it to be unable to be recovered. they were effectively saying it was going to be thrown out. the pictures inside that film, they are still there, they're still printed on the plastic, but they are all locked inside this permanently fused block of immobile gunk, which, sooner or later, will just rot away to soup. so charles brought the film to queen mary university's dental department to use that x—ray machine to see through the love of decaying film to the precious pictures within. but now they had another problem —

the film was too big to be x—rayed. the only thing you could do would be to cut the film into little pieces and scan one piece at a time. i didn't expect him to say yes to cutting up the film, but given the alternative was watching this just rapidly disintegrate, he said, let's do it. we were using an infrared laser. it generated a lot of heat, and occasionally there were flames. at the best, we had a little bit of damage at the edge of the frames — at worst, we lost whole frames. they took 5,000 images of each chunk as it rotated through 360 degrees to make a 3—d model. at that point, they started to see what was on the film for the first time. when you first start seeing those pictures of eric morcombe in one of his stereotypical poses, you can't help but smile and think, yes, this has to be done. once the scans were finished,

they had loads of data, but they also had a new problem. the next really difficult part was finding a way of digitally flattening out this warped object and digitally prising apart all of the individual film layers within it. we originally had the manual software where i would physically go through each individual block and spend five or ten minutes flattening out one layer after the other, but that was over several thousand frames, quite labour—intensive. at this point charles took the problem to a data scientist. what a human would do is try to see where the image was within the cross—section. the problem here is that a computer algorithm cannot quite do that. what the algorithm does is it

follows, predominantly, the layers of plastic, so not the images, but the plastic. so once we have the layer of plastic, we can move to the edge of that layer and read off the image. that process was repeated on all of the film, making short work of a task that would take a human thousands of hours of work. now charles is beginning the next phase, turning the pictures back into video. that is the next problem. but now he has managed to put together a taster of what is on that film. and beautifully as well. not a word out of sync. i'm not miming now. you realise, of course, that the tape has stopped. how does he do it? that is an impressive sight.

that is the king's library, assembled by king george iii in the second half of the 18th century. four floors below my feet here at the british library lie its vast basement, which as you can imagine also contain a lot of books. but did you know they also contain 6.5 million sound recordings which are now being digitised? the british library is the national sound archive, with sound recordings spanning the last 130 years. these are stored on all sorts of physical formats, from delicate wax cylinders to brass discs, to short—lived formats like minidisks, remember that? there is a big push to digitise them and make them available online. each of the a0 different types of storage format

has unique challenges. they all need their own playback devices, and some need a little tlc to coax the best quality sound from them. something reasonably robust like a vinyl disc, we have an ultrasonic bath to be able to shake that debris out of its hiding place. we also have the more traditional type of record cleaning machines, the brush and vacuum arrangements, that can produce some quite startling results when you start to clean off otherwise invisible gunk. the team also have a workshop to keep their collection of machines in tiptop condition, so staff can work on as many concurrent transfers as possible and chip away at the millions of recordings. if you are faced with a tape or a disc in a really perilous state and you take it off a shelf, it may be mouldy, it may need treatment, some sort of repair, but doing that process, that active process of conserving and repairing that media such that it can be replayed,

evenjust once, is hugely rewarding. certainly challenging. but with only 2% of their collection digitised and only 15 years until some recordings become unsalvageable, it is a race against time to save as many as possible. it reminds me that i have a box full of minidisks in the loft, i should bring them in. that is it for this week from the british library. don't forget we are on facebook and on twitter @bbcclick. thank you very much for watching. we will see you soon. the weather is not looking too bad

at all through the course of the weekend. quite chilly, frosty start to the day for some but a fine and dry day in store for many parts of the country today. by a cloudier scene with the arrival of some rain from the west. here and now a week weather front bringing a band of cloud into the midlands towards the south—east of england. much of east anglia and kent dry and sunny all stock temperatures in the south around ten or 11 celsius. further north, clearer and fresher with sanjay for much of northern england, scotla nd sanjay for much of northern england, scotland and northern ireland, and just a few showers. into deceiving and tonight, that band of cloud clears away and clear and dry conditions with sharp frost and fog patches. the westmoor cloud bringing patchy outbreaks of rain towards western parts first thing tomorrow. and east and west split. towards the west, raining cuddy conditions tomorrow. the best of sunny

conditions found further east. bye— bye conditions found further east. bye — bye for conditions found further east. bye—bye for now. you're watching bbc news. the headlines at one o'clock. theresa may warns the eu not to put lives at risk by refusing to co—operate on security post—brexit. we will not let that happen. we will together protect and project our values in the world and we will keep our people safe, now and in the years to come. just the tip of the iceberg — the president of haiti's verdict on sex scandal involving 0xfam staff, as he demands an investigation. also in the next hour, a second medal for great britain at the winter olympics. atjust 19, izzy atkin has won a bronze after a brilliant aerial display in the women's slopestyle. a first ever medal for britain on skis. elise christie now