tomorrow's whether difference would tomorrow's whether is it might not be quite as warm. still pretty promising with temperatures in the low 20s. always cooler on the north sea facing coast. don't complain because it looks as though things will turn increasingly unsettled from wednesday onwards with a low pressure starting to push in. that will ring in outbreaks of rain through the south—west and moving up through the south—west and moving up through wales. the of thunder through wales. the of thunder through the north midlands. it should stay dry in scotland and pretty one with highs of 18 celsius. cooler conditions kicking in behind. you will notice the difference through wednesday. that will be the trend as we move through the later stages of the week. the wind direction coming in off the atlantic, driving cooler and fresher air with it atlantic, driving cooler and fresher airwith itand atlantic, driving cooler and fresher air with it and maintaining a fairly u nsta ble story for air with it and maintaining a fairly unstable story for the end of the week. great news for gardeners and

growers. there will be welcome rain for the gardens but look at those temperatures, noticeably different. to where they should be, or perhaps a little bit below average for the time of year. hello, this is bbc news with lu kwesa burak. the headlines: eight british nationals are now thought to be among the 290 people killed in a series of bomb attacks in sri lanka. police have arrested 2a people in a series of raids as the government blames a local islamist extremist group. police say more than 1,000 people have been arrested after seven days of climate change protests. dozens of firefighters are trying to control a moorland fire in marsden in west yorkshire. gun salutes have taken place to mark her majesty the queen's 93rd birthday.

now on bbc news, it's time for click. this week, the war on fake news. when robots paint the...moon. flipping out over this. and how to make a shooting star. the world's largest election is under way in india. 0verfive weeks, 900 million eligible voters in 20 states are casting their ballots to decide who will rule this vast country

for the next five years. and this is no small decision — because in that time, india's population is set to overtake china's and its economy is likely to become bigger than the uk's. the size of this democratic exercise is like no other, but the issues that it brings up are all too familiar. social media, once again, is playing a part in swaying political opinions. and once again, misinformation, so—called "fake news" is attempting to cloud voters' judgement. and the problem is, last year, bbc—led research revealed that ordinary citizens in india are less concerned with the facts of a story, and they are more likely to share it if it bolsters

their national identity. the problem is now as acute on whatsapp as it is on facebook. and when messages come from family and friends, the receivers are more likely to believe it and to share it. india's election commission has been working with social media giants to try and stop the toxic overspill. david reid has been finding out if they've been successful. fake news foxes the best of us. in india, it has a particular potency. i got information from social media, like whatsapp, facebook, news channels... facebook, whatsapp, instagram. last year, more than 30 people died after false social media rumours triggered mob violence. this ngo stepped in to counter its effects. the explosion of mobile internet here has been a cultural earthquake. people easily believe fiery fake news and underestimate the effect of sharing it.

india is certainly a country, which comes under this whole thing like follow, share, forward, like. misinformation is catchy, misinformation is alarming, misinformation is like negative news, which is very attractive. we don't feel, you know, bad about forwarding it without realising how a forward can impact people. follow, share, forward, like. at election time, fiery rhetoric linked to identity does all of these things, and there are politicians here who are happy to ferment communal tensions. it's why the election commission has been so worried about fake news hijacking the democratic process, and is asking social media giants to clamp down. whatsapp introduced rationing, limiting to five the number of contacts users can

share content with. as for facebook, it is smarting from a series of fake news and data scandals. india's election is the big test. it pulled hundreds of fake accounts and announced a war room to crisis manage the election. we asked to see it, and were eventually told it was not in india, where the election is, but in san francisco, where facebook is. 0ur reporter who visited it said the war room had a "cobbled together" feel to it. the fact that we set up these operations centres, that we had the right capabilities in this room, where we have threat investigators, engineers, data scientists, meant that we had the appropriate expertise so we could respond rapidly when it mattered the most. back in india, facebook has recruited an army of independent fact checkers. the start—up news mobile employs a new breed ofjourno.

they are certified by the international fact checking network. theirjob — to review flagged stories, rate their accuracy and push out a corrective. this is a global epidemic and requires a global response. for every social media company globally, the fake news problem creates a crisis of credibility as well. so for them, it is incumbent upon them as well to work more deeply, especially with independent media companies. by all accounts, the fact checkers are doing a terrificjob. the problem is, there is just so much fake news for them to deal with. added to that, fact checking is real journalism — it takes time. for all the time that it takes, the false story is online, doing its damage. by the time a fact checker, you know, pushes out an article, fact checks something, it is already 24—48 hours

since the misinformation has been posted on the platform. and the misinformation by that time has more or less reached the intended audience. and facebook has no way of informing the people who have viewed the misinformation that, look, there is a fact checker responding to that. once a story is found to be fake, it does not then disappear. sure, it is contextualised by the fact checker‘s work and it's made less prominent, its viral wings are clipped, but it remains up there. there is, however, a category of misinformation that facebook does take down. in particular cases, where we see that misinformation violates our community standards and essentially co—ordinates harm — a good example of this just to anchor the conversation is misinformation that misleads people about the process of how to vote and logistics of when to vote, that aspect of misinformation is particularly dangerous and as a result, we remove that from our platform. for all the drawbacks to fact checking, it does seem to be educating people

to be more sceptical. did you just forward it? ijust received it on some random group. 84 million new voters have come of age since the last election, so is the social media generation rising up to the wiles of the fake newsers? so, i think first we need to check it all and then we have to decide that it is fake or true. my idea is if you are not informative about something, it is better not to spread rumours around that. fake news is imagined to have most impact in knife—edge constituencies where the vote is close. after the elections will be the reckoning, then we will see how well social media outlets have done at curving activists and their desire to trick unwitting voters. that was david reid in india. with me is will moy from full facts,

an independent fact—checking charity here in the uk. and, will, you have started working with facebook to fact check their articles recently, haven't you? that's right, they came to us last year, we spent a few months talking about how that would work, how we would maintain our independence. when we talk about democratic votes like the one going on in india right now, i can see a future where whoever loses the election will now be able to blame fake news as much as — maybe more than anything else. is that the future we are destined for, do you think? it is the past we have already lived in. people have always complained that the election was rigged and it wasn't fair for one reason or another, the newspapers are biased, whatever it might be. there has always been those complaints. what's true now that didn't used to be true is that a small group of people can control communications to millions of other people that their opponents can't see. so with targeted online advertising now, it is possible to advertise to millions of people,

but only a selected group of people — you can advertise just to men with one message orjust to women with another message, or in even more, sometimes quite sinister, targeted groups of people. that has to be made transparent or we really will have a problem with an election, where people can say this all happened surreptitiously, in the dark without scrutiny. and if election is not a shared experience, it ceases to be a truly democratic experience. in india, especially, there is a lot of sharing going on on whatsapp. now, that is not public, everything happens inside private, encrypted groups. how on earth can you fact check whatsapp groups and what they are sharing? we don't know yet, it's something that people in my line of work talk to each other about, and it is a concern. we were pleased that whatsapp made the move to reduce how easy it is to forward information on whatsapp, because that can make dangerous information go viral with too little scrutiny. but actually, it is going to come down to individual users of whatsapp

and every other messaging platform saying, "i don't want to share things with my friends that i think might not be true." because no—one actually wants to mislead their friends. but it seems to me human nature that we want to share sensational sounding information, and that has been true before social media as well. that is just not going to stop, is it? it is not going to stop, no. but equally, pub conversations for the last hundred years have not all been completely accurate, people have told nonsense at the market, nonsense at the pub, nonsense around the kitchen table for generations. it is not necessary to create a world in which nobody says anything that is inaccurate or sensationalised. what we need to do is spot where it is causing harm and then ask people to think twice. and say, actually, if you are sharing information about how to vote and you are not sure if it is right, that is the point where you need to stop and think before you share. do you think facebook and other social media platforms are doing enough at the moment

to counter misinformation? no, we don't. we think they have now started to take some serious and useful steps forward, but actually, they need to do more. they need to be changing the product so that it makes it easier for people to work out what they can and cannot trust. we need to see more research, more independent research into where problems are, what harms really arise from them. we need more data sharing. and with the programme that facebook came to us with recently, they started for the first time to give outsiders an insight into what is going on the platform, they started to integrate fact checking into the product. that is a decent first step, but it is not the last. thank you very much for your time, will. thank you very much. hello and welcome to the week in tech. this week, apple settled its chip royalty dispute with qualcomm, sending the chip—maker's stock rocketing up. twitter ceo jack dorsey said it is time to fundamentally rethink how his service is used, comparing himself to the captain of the titanic.

and after nearly five years of development, playstation announced plans for its next generation console. it will be backwards compatible with the ps4 and have 8k resolution. an investigation by the consumer magazine, which has found the amazon online store has been flooded with thousands of products with fake 5—star reviews, which looked at 1a popular tech which? looked at 1a popular tech items, including headphones and smart watches, finding unknown brands also appearing in the top of the search. amazon says it is using automated technology to weed out false reviews. uber launched a feature in saudi arabia that allows female drivers to block male passengers from hailing their cab. uber discovered that up to 75% of female drivers didn't want to pick up male passengers. women have only been allowed to drive in saudi arabia since last summer. alibaba's ceo jack ma has defended the culture of working long hours at tech companies, saying it is a blessing for workers to put in a 72—hour work week.

the so—called 9—9—6 work culture — working 9 till 9, 6 days a week — was highlighted by chinese tech workers online. and finally, in the latest sign of the impending robot takeover, boston dynamics showed off its robo dogs pulling a truck across a parking lot. the 30—kilogram robot dogs will go on sale later this year. at this london gallery, art created by a robot using artificial intelligence is on show. these images are a very modern take on the traditional chinese ink landscape paintings. they are created by using a combination of data from nasa, images collected by the chinese rover on the moon and a human who was taught the al to create brush strokes that look like this. ai genesis will never create the same image twice and its inventor, who calls the robot his soulmate, sees that as one of the joys. when you look at the picture do you feel pleased with it?

do you question how it has come out? how do you feel when you first see it? i feel amazed. wow, that is my expression. oh, wow. if i draw myself like this, i will be punished by my ink painting master because that is not the way that a trained traditional ink painting. what's wrong with it? they will not draw that that way. that is not a traditional technique of chinese ink painting. but the new art ink paintings, what we want to do is put some new things in traditional paintings, to renew it. you have certainly done that. who is the better painter, you or the robot? i would say it is a collaboration between us. and sometimes it is embarrassing because do i say look at my paintings... or look at our paintings?

but if the creation of an image comes down to data, numbers, algorithms, is it maybe missing something? each piece of art that is created normally has a person's emotions, persons thought and vision put into it. but when you are leaving the al to do a lot of that, is it still art? firstly, what is emotions? emotion is our response to the environment. like on a rainy day you will feel blue. on a sunny day you may feel the future is so bright. if i put data to stimulate gemini's work, to stimulate it, to create extra stimulation, less surrounding, for example i put in humidity and temperature, every time it comes out different. i would say there is emotion and relations at this moment but no—one can say that ai will not have emotion or imagination in the future. and the idea does seem to be gaining ground.

a piece of ai art was, for the first time, sold at auction last month at london's sotheby‘s. artist mario klingemann‘s memories of passersby1 was created using what is known as generative adversarial networks, or gans. these break down the data from traditional oil portraits, rebuilding it into a series of unique images. what you see there, i built myself. but like a painter does not build the brushes themselves or, let's say, they go in the store to purchase paint or canvas, i am working with materials that are standing on the shoulders of a generation of researchers. but the intention here was deliberately neither to achieve perfection nor photorealism.

selling now for £32,000. it was actually the code that was bought here with a couple of screens and a wooden unit thrown in to enjoy it on. so maybe the future of appreciation of art is one of appreciation of technology as well. that was lara. now let's talk phones. and as a gee—ee—ee—ee—eek, i have been waiting a long time to be able to do this. the idea of a flexible display has been around for years and on click we have watched this story, ahem, unfold. but these things have been an awfully long time coming. we have had to wait for 0led technology that allows for flexible electronics to get to a point where it is cheap and reliable enough to survive being bent, flexed and mistreated in the real world.

and this year, finally, several companies have been able to, ahem, roll them out. the highest profile flexible phone has to be samsung's galaxy fold which becomes available at the beginning of next month. whispering: for £1,800. now the front screen is smaller and narrower than you might be used to but this device is really all about a 7.3 inch tablet screen hiding inside. you can just about see that crease down the centre, although it is less obvious when the screen is bright. 0n opening or closing, any apps running on one screen will switch immediately to the other in an adjusted size. that bigger screen does allow

for three apps to be open at once which you can reposition or pop out into floating windows. now this is the first time that journalists have been allowed to touch the thing and i came down here today expecting it to weigh a ton but it does not. it is heavier than the s10+ but it is lighter than an ipad mini, so it depends on your perspective, really. now, about the screen. it doesn't fold completely flat, which has caused some to worry that a stray coin in the pocket would sneak into the gap and cause all sorts of screen damage. and despite samsung's claims that it can take up to 200,000 folds, some reviewers have already experienced unexplained faults with the screen. samsung says it is looking into it but it's not exactly the best start for what is supposed to be a whole new type of device.

now, then, i wonder if you've ever seen a shooting star. if you're lucky, you might see a few of them in your lifetime but what if you could control where and when they happen? that would be pretty spectacular, wouldn't it? kate russell has been to japan to meet the scientists who are trying to take control of the night sky. three, two, one, go. it's not often you can get this close to a shooting star. 0oh, that one is green. this simulation of a meteor being burned up in earth's atmosphere is part of an ambitious plan to create cosmic grade fireworks that can be seen from up to 200 kilometres away. since we last visited the company back in 2016, they have been perfecting

the technology to make it compact enough to allow it to be sent into space. hitching a ride on a rocket is not cheap, so every gram counts. many shooting stars ordinarily... basically... than the natural shooting stars. this is completely burned out in the upper atmosphere. so it becomes very bright and lasts longer. it will take a year before the satellite descends to an orbit where they have been cleared by the world's space agencies to eject the pellets. so the particles sit inside this cylinder and they get rotated one at a time into this chamber here. down inside here in

the central chamber. then we put pressure behind them right here and we release them and they get shot out of here. ah, 0k. so puff, puff? yep, one at a time. because the release velocity is the number one critical factor in ensuring accuracy of the particles, there is no system on earth currently accurate enough. the company is being secretive about the date for the first shooting star display. but it doesn't take a genius to work out that the timing sets things up nicely for the 2020 0lympics. in future, they hope to offer multicoloured displays as well. so this is one of the materials that will be tested today, just mounted on the tip of the stick. we're not quite sure how it will burn, what colour it will be, or the brightness but that is the point of these tests.

it promises to look spectacular. but there is real science at stake here as well. right now, meteor science is not well known. it is a wide field of research and especially scientists they don't know the mass, the brightness, the composition of meteors and we don't know if it led to the spread of life on earth. because we have such an accurate system, we can tell people, scientists and our own crews, exactly where to point cameras so that they can record and get data. it is not so surprising to connect fireworks to scientific breakthroughs. around 2,000 years ago, alchemists seeking a recipe for eternal life accidentally created firecrackers. this led to our first fundamental understanding of the forces of nature. so this could mark the beginning of a new chapter of scientific study. it's also going to look very pretty. brilliant.

that was kate injapan and that is it from us for this week. you can follow us on social media throughout the week. we are on youtube, instagram, facebook and twitter. thank you for watching and we will see you soon. good afternoon. it'sjust good afternoon. it's just a long easter weekend that keeps on giving. now temperature is just shy of 25 celsius for the west of heathrow, the warmest easter monday on record. we've also got sunshine in the highlands of scotland. a little more hazy to the south because of high cloud across the channel and that will continue to move steadily north

and west overnight tonight but this weather front that brought the cloud into scotland is staying well away today and so we continue to see a good deal of dry, settled, sunny weather. temperatures peaking at 25, maybe higher in the next hour or two. 0vernight, that high cloud might make it thick enough for isolated showers close to the channel islands through southwest england as well. more of a breeze starting to develop which will prevent temperatures from falling quite as low as the nights just passed. we'll see lows of 10 celsius. tomorrow, we start with plenty of sunshine, still the risk ofa plenty of sunshine, still the risk of a few isolated showers to the southwest and avail of high cloud building across the country. —— a veil. if you're heading back to work, it may be good news as it will not be as warm but still 12 to 20

celsius into scotland, 22 further south, but from wednesday onwards, the change looks likely. we see this area of low pressure starting to push on from the atlantic and it will bring some rain, some of it heavy across southwest england and wales, up to the midlands and to the north of england. we have thundery downpours, too. it stays warm and sunny downpours, too. it stays warm and sunny across much downpours, too. it stays warm and sunny across much of scotland, it will recover behind it but noticeably cooler, 13 to 15 celsius across the southwest by the end of the afternoon and it looks as though that cooler air will continue to wind out for the end of the week. as we see the wind direction coming in off the atlantic, dragging cooler, more moist air and there is the threat of showers by the end of the week with temperatures really falling away sharply next weekend, a maximum of 12 or 13 celsius, just slightly below the average for the time of year. with a couple of hours to go, get out there and enjoy the

afternoon if you can.

this is bbc news. i'm lu kwesa i'm lukwesa burak. the headlines at 3pm: police in sri lanka arrest 2a people as the government blames a local islamist extremist group for a series of co—ordinated bomb attacks. it's feared a mother and her child are among the eight british nationals now thought to be among the 290 people killed. police say more than a thousand people have been arrested after seven days of climate change protests. dozens of firefighters are trying to control a moorland fire in marsden in west yorkshire. gun salutes have taken place to mark her majesty the queen's 93rd birthday. and the travel show heads to madrid where a transport revolution is under way.