this is bbc news, the headlines: 11 people have been killed and six injured in a shooting at a government building in the us state of virginia. police said the suspect, a long—term employee at virginia beach municipal center was killed by police after ‘firing indiscriminately‘ at workers inside the offices. the mexican foreign minister is on his way to washington for talks, after president trump threatened to impose tarifs —— tariffs on all mexican goods crossing the us border. president trump wants mexico to halt the flow of migrants into the us. mexico's president says his government won't be provoked. the british retail tycoon sir philip green says he strenuously denies four charges of misdemeanour assault in the us. sir philip's arcadia group owns chains including topshop. the charges which each carry sentences of up to 30 days inprisonment relate to allegations of inappropriate touching. welcome to bbc news, broadcasting to viewers now on bbc news it's time for click. in north america and around the globe. i'm reged ahmad.

our top stories: at least 11 people are killed in a shooting at a government building this week mud, mud, glorious mud. in the us state virginia. a new front in the trade war, as president trump announces smart matchboxes and what happens fresh taxes on all goods coming from mexico, in retaliation over when you get to see for the first time in years? undocumented migrants. british retail tycoon sir philip green has strenuously denied four counts of assault in the us, relating to allegations of inappropriate touching. football fans fork out a fortune as liverpool and tottenham prepare for the champions league final in madrid. the sun is finally out in the uk and festival season is upon us. and to celebrate the good weather we find ourselves at the world—famous hay festival. nestled in the border of ingle and wales this place has been

home to the event for over 30 years. i love the hay festival. you can come here and fill your brains with all sorts of new knowledge on all sorts of subjects delivered by all kinds of brilliant speakers. and when you have done that, come see us doing our live show. yes, once more click live hit the hay. we spoke about robots, talked in detail about how our brains develop and we built an artificial intelligence using matchboxes. please well maisy mcadam and willow. but possibly the most magical moment starred maisy and her dog willow. about six years ago at the age of 16, maisy was diagnosed with a brain tumour. 0ver the age of 16, maisy was diagnosed with a brain tumour. over the next few months her vision was reduced to a tiny blurry circle in just her right eye. so if you popped those onto maisy now... well, maisy had agreed to try on stage the latest

version of these give vision toggles. they use magnifiers and augmented reality to amplify the wearer ‘s remaining vision and highlight outlines. maisy, are they working? yes! i can see your microphone and i can see that you are smiling and i can see the buttons on your shirt. look at the audience. yes. they are waving! i can see there is a lady in the front with a red jacket and the guy next to her is wearing stripes. it is so amazing! ididn‘t to her is wearing stripes. it is so amazing! i didn't realise how many people were there and then i them on andi people were there and then i them on and i could see everybody in the audience. it was a scary feeling, actually. something maisy felt especially robbed of through this traumatic experience was her ability to read her favourite traumatic experience was her ability to read herfavourite books. we have a copy of harry potter and the philosophers stone here. do you

think you would be able to read us the first few sentences if i hold the first few sentences if i hold the microphone up westerner 0k. can you see it? yes. i'm sorry. 0k. mr and mrs dursley of numberfour privet drive were proud to say that they were perfectly normal, thank you very much. it made me really happy that i could have that back, that thing that was taken away from me, to have it back was lovely. i really do miss the sensation of purchasing a book, bringing it home and reading a book and to think in the future that this kind of technology may be mainstream and that ability will be back for me, it isa that ability will be back for me, it is a wonderfulfeeling. that ability will be back for me, it is a wonderful feeling. it has been an overwhelming experience but a really great one as well and i am really great one as well and i am

really grateful. this really was an emotional moment for all of us. but what about other types of vision impairment? we have been looking at a piece of technology aimed at people who are colourblind. but does it work? it looks so different! i'm not joking. it work? it looks so different! i'm notjoking. it looks it work? it looks so different! i'm not joking. it looks so different. that's the real world. that's how we see colour. this was the moment nine—year—old sebastien tried his new chroma glasses for the first time. designed to help improve the site of people with certain colour deficiencies, his video was similar to many others posted online. there are so many to many others posted online. there are so many different greens! some of these videos have millions of views on youtube. your bag! and a quick internet search sets up dozens of fundraising pages set up by families wanting to purchase a pair. this could be because the glasses

are not cheap. they start at $3119 this could be because the glasses are not cheap. they start at $319 us for adults and $269 for children. sebastien‘s father chris first heard about the glasses while watching a video and was keen for his child to try them out. i think you feel, as with all disabilities for children, powerless and keen to try and do anything you can to improve or correct even partially that disability. sebastien was born with a genetic colour deficiency called for anomalous dye, see. this gives people a de— sense —— decreased sensitive to red in particular. 8% of men and .5% of women worldwide have a degree of colour deficiency in their scientific i met sebastien and his father at the institute of ophthalmology at university college in london. what colour do you see this as? i think it is read but i

know it is pink. i find that fascinating. put your glasses on and tell me what it looks like. now i see it as definitely pink. if you ta ke see it as definitely pink. if you take the glasses off again, you have a few balloons here. what colour is this balloon. i see it as green but i know it is orange. and with the glasses on? now! i know it is orange. and with the glasses on? now i just see it as orange. the glasses are said to work using spectral notch filters that remove using spectral notch filters that re m ove pa rt using spectral notch filters that remove pa rt of using spectral notch filters that remove part of the colour spectrum. the professor is going to run through some traditional colour deficiency tests with sebastien. these aren't tests for colour deficiency. this test you can definitely see all the colours. what number do you see? a 12. definitely see all the colours. what number do you see? a12. it works by showing a number that is slightly different colour to the dots in the background. the glasses don't help

sebastien with this test. do you see any numbers here? no. and how about here? any numbers? no? don't worry. i think it's... a ten? here? any numbers? no? don't worry. i think it's. .. a ten? 0k. here? any numbers? no? don't worry. ithink it's... a ten? 0k. and here? any numbers? no? don't worry. i think it's... a ten? 0k. and does that change when you wear the glasses? i slightly think it's a 20? that is closer. it slightly improves your discrimination but you would still not pass a colour test. i'm sorry. there are better results with this test looks at different colours of wool. this one changes so much. it changes from a green to a very standard pink. and this one where sebastien said he saw a shape he could not see without the glasses. circle and a pink triangle. what do you see? i saw a blue circle but

when i put the glasses on i saw a triangle here. so before did you not see a triangle? no. what is going on? it changes the apparent colour of light. more than a placebo effect? 0h, of light. more than a placebo effect? oh, yes. it definitely changes the appearance of coloured lights. i spoke to the companies president who said that the glasses are only sold as an optical assistive device. it is important to understand that the glasses are not a cure for colourblindness. they should help the person to see colour in many situations but they don't necessarily provide normal colour vision. recent peer-reviewed university —— research concluded that the chroma glasses introduce a variation of perceived colour but do not improve results in diagnostic test for colour deficiency or give the wearers normal colour vision.

and kremer provided a sustainment regarding the study saying only its classes were used on to test with the subjects wearing glasses for a few minutes at a time. they said this would tend to minimise any results. for chris, the science behind the glasses is less important than the experience his kid gets while watching —— wearing them.“ than the experience his kid gets while watching -- wearing them. if i thought it was harmful then i would be more concerned. if it is a parlour trick, to be brutally honest, i don't really care. but others may expect more definitive results, especially considering the marketing hype and luxury pricetag. hello and welcome to the weekend text. it was the week that huawei founder said he would the first protest if china band apple. the chinese company is seeking to overturn its own us band. mark zuckerberg has been feeling the heat

in europe. facebook, whatsapp and instagram were outed as the most in investigating —— investigated companies. 11 out of 19 of its probes were targeted at the trio. in better news, british scam for them is conned out of money online are 110w is conned out of money online are now more likely to get the cash back. eight banks including ba rclays, back. eight banks including barclays, and lloyds have promised a better protection for customers which should mean more refunds. this is not just for which should mean more refunds. this is notjust for collecting pokemon. it could help you catch up on your sleep as well. bluetooth tracker let's player zone in game rewards. there are fears a game is being used for grooming. its creator sayyid has strict filters in place to stop inappropriate behaviour and blame any misuse on third party apps not affiliated with the company did again finally, the world ‘s first raspberry picking robot is set to work on a british farm. it may be

slow now but fieldwork robotics says its spot should soon be able to pick 25,000 berries a day, nearly double what a human can pick. not bad given how delicate these tiny fruit are. fingers crossed that things do not go pear—shaped. 0ur our phone cameras have been getting better and better over the years with all of the big players co nsta ntly with all of the big players constantly trying to outdo each other. but now, some of the chinese phone manufacturers seem to be leading the way with features like five times it will soon i'm putting some of the latest devices to the test, with a spot of help. this man has spent 20 years as a leading street photographer, working in london and new york. so he knows a thing or two about cameras. hello.

good to meet you. nice to meet you as well. firstly, the one plus seven pro—. the statistics are impressive plus a few nice touches. no punchbowl, no not so when i press the sulphur camera it needs to come from somewhere. look at that! it comes out the top. if your phone thinks it is being dropped, this happens, it goes back in. anyway, easy to be distracted by that. what we actually want to do is test three different photos lengths to start with and you are the person to do that. this is a 1-to-1 ratio where we get exactly what we see. we zoom into the city and we lose a little sharpness, a little loss of a pittance. we zoom out it makes a respectable photograph. and if we go into ten times soon is quite shaky so into ten times soon is quite shaky so you really need to almost stop breathing. the phone has a three times optical zoom and beyond that it is starting to do it digitally so

i suppose we expect some loss in quality after that three times? as $0011 quality after that three times? as 50011 as quality after that three times? as soon as you move from optical to digital zoom you enlarge the information you already have so you lose sharp sand detailed. and the ten times zoom... it could be sharper but we managed to get all of the windows and all the cranes. really quite good detail therefore a ten times zoom on a smart phone. next up, the or reno 5g. so much more detailed. it looks a little over sharpened, i think there is some processing going on. but good detail in the windows. i think it has done a slightly betterjob. and the ten times? you can see individual church towers and trees, cranes, every single window in every single building. and from the controversial huawei come they are offering, the p 30 pro. the volume buttons are on the wrong side for taking pictures. so when you hold it horizontally there is no click here.

is it for left—handed people? much better for them. is it for left—handed people? much betterfor them. i don't think is it for left—handed people? much better for them. i don't think the image looks quite as nice as the previous phone but we still have good detail in the sky and the shadows and that is something i look for. this is the ten times zoom. it looks more natural. i think it is probably the nicest of the three that we have seen. but it also has a 50 times zoom. amazing. is it humanly possible to be still enough? ican humanly possible to be still enough? i can see a single tower block on the screen so i will try... it is difficult to use. you almost need a tripod which defeats the purpose of a mobile telephone. i'm not sure the image is usable. we also tested them in portrait mode. we also it is not to contrasty. on the oppo, it is not to contrasty. on the oppo, it looks very cold and blue. i don't

think the camera has judged the light so well. and the huawei? this one is a little over processed and oversatu rated. one is a little over processed and oversaturated. see how dark your phases they are. as a nonprofessional, i actually quite like that look. they look like they have been edited a bit. yeah. i think a natural picture like this has good skin tone and so on. the more contrast one would be look better on instagram or social media, whether this one would make a better print. the screens on the oppo and huawei were easier to see in the sun than that on the 0neplus, but all the phones also feature modes for dealing with low light. nick was pretty impressed by what a smart phone camera can now achieve, but what was his overall verdict?” phone camera can now achieve, but what was his overall verdict? i was incredibly impressed by the 0ppo, as a professional photographer i thought it had a nice blend of good tonality, it wasn't to much contrast tonality, it wasn't to much contrast to much processing, it had good detail and sharpness. i think the

huawei did look a little bit digital, some of the colours were a little unnatural, and i think the 0neplus was my least favourite. 0k, more flowers now. and these suitable tulips were generated by a computer programme. the realism is uncanny, and that is because the algorithm that generated them was trained on 10,000 pictures of real tulips. and radler, the artist behind this work, then hand annotated each picture. —— hannah ridler. for each one i annotated what type it was, what type of job it was, whether it was about or whether it was dead, and i use that information to use a machine learning to drain the algorithm to produce these pieces. i had read about tulipmania which was this. in dutch history in the 16 30s when

price of a tulip went at one point for the same price as an amsterdam townhouse, and it was the first known speculative bubble. and i was interested in kind of comparing this moment in history when speculation thatis moment in history when speculation that is going on now around crypto currencies. so in this piece the tulips are jittering and flickering, thatis tulips are jittering and flickering, that is because the way the tulips have been created by the algorithm is controlled by the price of bitcoin. as the tulips change, that is because the price of bitcoin is changing. as beautiful as these tulips are, every so often the realism falls away, and you start to see the artifice. part of the reason i display my dataset as a separate work is to really kind of emphasise the humanity and humanness that sits behind these processes. here the machine learned what a tulip looks like at each stage of its life cycle. the machine learning is used in lots of different ways. it already helps stop is to care for

their patients, bankers to care for their patients, bankers to care for their clients' money, and is used by our voice assistance to care for our needs. alexa, living room, evening, on. kind of. but even though machine learning applications are becoming more infused into our daily lives, most of us know very little about how it all actually works. until now. because at click live at hay, we showed how a machine can learn to play nods and crosses. it is a machine called menace and it is made of matchboxes. there are 301! different combinations of noughts and crosses that you can have in a game of noughts and crosses. 0ver here are 301! different matchboxes, each one corresponding to one of those combinations. so when the game gets to a certain state, you look through the matchboxes here and find

the one that matches that permutation of noughts and crosses, give it a shake, and pull out a bead at random. now i have pulled out a pink bead, which means that menace plays its next move there. at the start of the day the boxes contained the same number of beads of each colour. every time menace one it was rewarded with more of the right colour beads. when it made a mistake those beads were taken away. to start with menace's moves were entirely random, causing it to lose most of the time. but as the day progressed those bead colours started to shift to match the best moves that menace could make in any one position. after about 70 games, menace could force a draw almost every time, which in knots and crosses is pretty much the best you can hope for. i drew against matchboxes, yay! this random trial

and error method with so—called reinforcement learning is exactly how machines learn. it is usually done at incredible speed, playing millions and millions of iterations. now machine learning, so says abacus, may solve one of the world's most pressing problems, like climate change to curing deadly diseases. but some think it may bring about the end of the world. it certainly seems the end of the world is something that the games industry has been obsessed with for a while. mark has been playing yet another title set after the apocalypse. rage two is a first person shooting and driving game set in the exploitable post— apocalyptic open world, a landscape populated with mutants, cyborgs and bad boys and girls out for blood. sound familiar? loads of games this year have a similar set up, and in an effort to find a new

way to talk about a title like this, iam going way to talk about a title like this, i am going to have to take radical steps. we scoured the globe in search of a location which could match the desolation of a post— apocalyptic landscape, and our search brought us here, suffolk. in the rain. in rage two, the player assumes the role of arranger, one of the last remaining symbols of order ina the last remaining symbols of order in a world devastated by a giant asteroid strike. it is also not entirely serious, looking at playing like a schiatti day glow version of the end of the world. it is silly and a bit gross. the closest thing we could find to tearing across the wasteland is banger racing. here we have specially adapted vehicles with steady safety cages fitted, which is handy. —— sturdy. rage two is a

fairly dark game so this seems like a dark way to review it. this is my chariot. definitely doesn't come with parking sensors. as the bangers lined up ready to race it gives me time to reflect on the driving aspect of the game. to get from mission division and explore the wasteland the is initially equipped with a phoenix operator which offers a good mix of weapons and versatility. my stripped out supermini is problem —— positively pedestrian in comparison. there are different vehicles scattered across the giant game up, and open world thatis the giant game up, and open world that is perhaps a little too open, as often lots of travelling with very little going on. thankfully the midfield track i have to drive around here is a lot smaller than the exploitable world of the game. as the name suggests, rage two is not a super chill, relaxing video game. it is all about racing off—road vehicles across a post— apocalyptic wasteland, and shooting

stuff. with a wide variety of weird exotic weapons. when running around first person those weird weapons are the core part of the title, allowing players to match enemies in increasingly over—the—top and not safe for tv ways. because i don't have a wind screen or windows, all of this mud when someone drives past you end up in your mouth. cheers for that. driving in conditions like this can only end one way. 0h! ultimately, rage two is a bit like hurtling around this muddy track at breakneck speed. great fun when you are doing it, but not an experience that stimulates the grey matter all that stimulates the grey matter all that much. that was marked, and it

may not be the end of the world as we know it but it is the end of the show from hay. thank you for coming on for the ride and if you need us during the week we live on all the usual places, facebook, youtube and twitter. thanks for watching, we will see you soon. hello. well, saturday is almost certainly going to bring the warmest weather we will have seen so far this year, with temperatures expected to reach the high 20s, but not everywhere. in fact, just across a small part of south—eastern britain. the warm currents of air are coming in from the south, from portugal and spain. the warmth is spreading across france, germany,

into eastern parts of europe as well. large swathes of europe will be under the influence of this high pressure. we're actually quite close to the low pressure as well, so there is rain in the forecast. it isn't looking sunny all through the weekend. in fact, starting off quite cloudy across some western areas first thing in the morning on saturday, but it is relatively mild. temperatures around 10—13 across the southern half of the uk, maybe just about single figures in the north. temperatures around 10—13 across the southern half of the uk, maybe just about single figures in the north. saturday, between the high pressure and the low pressure out in the atlantic, there is this weak front here which will bring some light rain to one or two places during the course of saturday. we think increasing amounts of cloud across wales, merseyside, maybe northern england, a few spots of rain here for a time, and a fair bit of cloud, at least at times, in northern ireland and western scotland. here we have the yellow colours with much fresher air — well, i say fresh, but it will still be quite muggy. 26 at least in london, it will probably reach 28 in one or two other spots. saturday evening, if you have any plans outdoors, it's looking dry across much of england and wales. scotland, too, before this rain here arrives on sunday. so the high pressure on sunday slips

away towards the east, and instead we get this low pressure diving in off the atlantic. that is when the change will start happening, sunday morning across western parts of the uk. the clouds roll in, the rain—bearing clouds. the winds will increase as well. in some areas the rain could be quite heavy and there might even be some cracks of thunder. through the day we will gradually see those clouds pushing through on the south—westerly wind, that wind will also squeeze the heat towards east anglia and the south—east. still very warm from lincolnshire into east anglia and london, but elsewhere, temperatures will be closer to 18 or 20. that really sets the trend for next week. low pressure is very much in charge of the weather. 0ne slips away to the north, another weather front swings in from the south—west as well, so there'll be some spells of rain. it's not going to turn chilly. temperatures will probably still reach about 20 degrees in the south of the country.

further north, maybe only around 1a. that's it. 00:28:05,660 --> 4294966103:13:29,430 goodbye.