drivers strike for the second time this week over pay and conditions. members of the aslef union are walking out for 2h hours on the majority of lines in england, leaving only 40% of services running. now on bbc news, click. this week, alasdair goes for a virtual spin. any last—minute advice? drive fast! alasdair laughs inspired. and if that turns your stomach, lara has something to settle things down. do i seem...healthy? do i seem to have a healthy gut

based on what you're looking at there? and nick's flipping burgers with a new friend. has anyone got ketchup? for as long as i've been playing computer games, i've been playing computer games about racing cars... and i've been terrible at them all. butjust like you get elite racing car drivers, you also get elite racing car video game drivers. and ahead of this year's formula 1 e—sports season, alasdair keane has been to see how some of the leading teams are getting in on the virtual action. for many people, gaming is a bit of fun, a chance to catch up with friends and even an escape from reality. but when it comes to e—sports, the line between the online world and the real world are becoming increasingly blurred. this is a showroom to motor history. mclaren have been racing for 60 years...

..over that time collecting wins and trophies. but recently their success has come in the gaming arena. the pressure is immense. mentally, that's the hardest part. the results in f1 e—sports can change in a literal flash of an eye. their e—sports team are the current holders of both the constructors�* championship and individual driver titles. there's not one moment when you're competing in f1 e—sports where the pressure isn't bearing down on you, and that's something that you need to learn to sort of adjust to and you also learn about yourself — like,

how do you react to the pressure? how does your body respond? how does your mind respond? and through trial and error you'll find what works for you. but it is huge. f1 e—sports is literally the virtual formula 1. it is the closest thing you'll find in the esports world to, you know, the real—life f1 with all the f1 teams involved. so we have obviously ourselves at mclaren competing against all the other f1 teams but just in a virtual capacity on the f1 game. myjourney began back in go—karts. i had a go on a go—kart for the first time when i was seven and ultimately my goal as a kid was to be an f1 driver inspired by quite literally watching lewis hamilton in the mclaren winning the championships. his arrival in formula 1 back in '07, yeah, that's really what lit that spark. but then, wasn't able to continue that post—2015 due to just how much money motorsport is. that's just the harsh reality of it, and it is for many racing families out there.

just got to get comfortable. any last—minute advice? drive fast! alasdair laughs well, may the best driver win. it won't be me! video game sound: engines revving and we're off. wait, am i winning this? i'm giving you a temporary ego boost. no! we're going to need to restart! just kidding, keep going. 0k, by this point, i'm sure he could have lapped me several

times but lucas does have some tools up his sleeve. so in f1 e—sports, all ten f1 teams have an equal performance. so it's really up to us as drivers and also us as the teams to maximise what parameters are available. a way we utilise that is through using splunk and that gives us so many channels of information with throttle and brake tracers and the race tracers as well. it has infinite amount of information, so many data points, every single lap of so many different cars. a lot that we can analyse and go through. and ultimately that helps us form our strategies both before and during a race. this information is built into the game and is available to anyone — even at home. so if you take the f1 game, go into the in—game settings, go into telemetry, and it'll give you lots of options on where you can go and put that out. and there are lots of data providers — splunk being one of them — that you can send the data to and you can start to go and play with that data and hone into what you want.

so when you're starting playing racing games, most people get braking wrong. you brake like you would normally at the traffic lights, you slowly increase pressure. whereas actually what you're wanting to do is put the brakes on really hard and then start to trail that off. and you can actually look at that curve of the brake pressure and how you're doing. you know, step one of learning how to drive an f1 car. people like me are never going to be at the front of the grid, but i like to know what i'm doing right and doing wrong and data is a great way of starting to help to understand that. lucas may be mclaren�*s e—sports champion but f1 driver lando norris is also no stranger tojumping on the race. the f1 video game is the closest . thing you can do to real—life racing without getting behind the wheel of a kart or a car. _ and so there's a lot of, i think, . similarities between that real—life racing experience and what happens in a sim racing rig~ _

and so, as we blur those lines further and further, _ that's an exciting sort of area to play in as we look - at driver development, - young engineering programmes |and really building up the next gen| of talent that comes into the sport. what is the dream? i'm never satisfied. it's got to be more. so, yeah, that's sort of the mind—set i've adopted. and, yeah, the dream isjust to keep pursuing better, keep trying to be better. if lucas is still trying to get better then i've got a long way to go. 0h...sorry... there we go. ..crashing into you. i'm just going to cut that corner. nobody saw. take a short cut, cheeky. nobody saw. it's fine. 0k. you're miles ahead of me now. taking it home now. yes. well done. all good. winner. good fun. how much did you beat me by?

i don't really know. i wasn't really paying much attention. that was good fun. a nice little cheeky drive, you know. good. well, i don't think i'll change careerjust yet. ok, let's talk about health now. developing new medicines and drugs is a vital part of science but it's also hugely expensive, complicated and labour—intensive. however, one company spun out of glasgow university is trying to speed up the process with something they're calling a chemputer. my name is lee cronin. i'm the regius professor of chemistry at university of glasgow, and also the ceo of chemify. chemistry is literally the act of designing a molecule that you might want, and to do that, it's very technical. you have to work out all the moves you need to make. in computation in the last 100 years, you've gone from people using mechanical typewriters or mechanical calculators to, you know, a computer that literally you can fit in the palm of your hand. meanwhile, the chemist is still working by hand in the fume hood. you can mix together some chemicals

and make a wonderful molecule, but wouldn't it be easier if you could automate the mixing and the checking so that you can make more molecules more quickly, more elegantly, more reliably? why this is important is it means we can start to make molecules we could never, ever make before because they're just too dangerous to make. if we can change the sequence of the molecule, we can then make new types of medicine. we should be able to make many more drugs and tailor them for individuals. i designed chemputation to be like the chemical equivalent of a computer. it has a programme, a robot and a checker. this is literally a virtual reality map of the robot. so you can see in here all these different icons. theyjust represent the different objects in here. so you've got pumps, valves, reactors and stirrer. so this down here is the reactor and the stirrer and all the pumps

and the valves and they're all connected together by these white lines which represents this tubing. and so we connect it all up in virtual reality so we can check it. and we could even do a simulation before we actually do the chemistry for real. to control the chemputer, we actually use like an internet router and the input chemicals are taken up. you can see these pumps and valves are moving. we take this blue solution and we put it into this separator here where you can see the orange solution and we then basically take a video of that using an infrared spectrometer which looks at colour changes and can tell us if the molecules have been chemputed — gone from the starting molecules to the end molecules that we need. and we keep checking until the chemical reaction is finished perfectly and we've made the molecule we want.

initially, i think that the experts were a little bit sceptical that you could capture the genius of the chemist in the robot — and they're right. you don't capture the genius of the chemist. what i realised we could do with chemputation is take out the labourious, repetitive parts and allow the genius part to be done by the human mind. going back, you know, to the time of alchemy, go even further back, chemists didn't write things down, right? it wasjust magic. now, coming forward tojust100 years ago, chemistry was going through almost its industrial revolution. we've developed new materials, new drugs, new fertilisers. but all that discovery process has been manual. this is not like a kind of, "ai is going to replace the chemist." when chemists began to see that they no longer needed to spend maybe 50 hours in the laboratory every week reproducing things, that they could use the automation

to get there faster, they became more and more excited, and now it's exploding. and i think, in the same way the computer games industryjust exploded as a result of the development of personal computers in the '80s and '90s in the uk, i'm hoping exactly the same thing will happen in the uk now, that the number of chemical programmers willjust expand vastly and we'll go into a new era of drug discovery and materials discovery and new technologies. time for a look at tech news now. ai experts are warning that the technology could lead to human extinction. reducing al's existential risk should be treated as seriously as pandemics and nuclear war. as seriously as pandemics and nuclearwar. not as seriously as pandemics and nuclear war. not all experts agree. this is not something that is actually realised in society. i

think what is lacking is the speculation about it versus the reality of it. speculation about it versus the reality of it— speculation about it versus the reali of it. ., , reality of it. elizabeth holmes has beuun her reality of it. elizabeth holmes has begun her 11 _ reality of it. elizabeth holmes has begun her 11 year _ reality of it. elizabeth holmes has begun her 11 year sentence - reality of it. elizabeth holmes has begun her 11 year sentence in - reality of it. elizabeth holmes has begun her 11 year sentence in a i reality of it. elizabeth holmes has| begun her11 year sentence in a us begun her 11 year sentence in a us federal prison. she was convicted last year on four counts of fraud linked to her field last year on four counts of fraud linked to herfield blood last year on four counts of fraud linked to her field blood testing tech start—up. uk and french researchers have developed a smart bandage that sterilises wounds with uv light and could be used instead of drugs like antibiotics to prevent the growth of resistant bacteria. the wirelessly powered eco friendly smart bandage could help patients with non—healing wounds to avoid infections. and nvidia briefly joined tech giants like amazon in becoming a $1 trillion company. the stock has more than doubled in the last 12 months as demand for its graphic processors grows thanks to them being used for powering ai

systems. in the uk, an estimated 13 million people suffer from irritable bowel syndrome plus many more from food intolerances and other often debilitating gut issues. breath testing can be used as part of the diagnosis and usually takes place in a clinic. so this is the room where we make the kits to go out to patients today. 18 months ago, though, omed health made it possible to do these tests by post. from the comfort of their own home, they can do the breath test. but now it's set to take understanding our gut health to another level. of the chemicals that are on our breath, we know there's hydrogen and methane present, and these are very important chemicals because they originate from the microbiome. so we're familiar with the microbiome, the good bugs and the bad bugs that we have within our body. and when we eat certain foods, these two key gases, hydrogen and methane, can signal the presence of bad bugs

in the wrong place within the body. so it's really important to be able to look at the levels of these chemicals. so what sort of issues produce what chemical? for example, ibs versus lactose intolerance. what is it that causes what? we know there is intolerance to certain carbohydrates. this could be things like lactose, fructose, and these can be things that you eat in the food. what we also know is that you can have conditions such as small intestinal bacterial overgrowth. so this is essentially bad bugs in the wrong place within the body. and if they're too high then it can lead to a host of these digestive health problems — bloating, constipation and the like. but to really be able to keep track of the effect that different foods have on you, you could do with being able to monitor your reactions anywhere, any time. and this is the prototype of a pocket—sized device that hopes to be able to do just that. yeah. so what we're trying to do is make it very easy for people.

they can do the test in their home. and how would you use it? how many times a day would you breathe in to the device? then you'd track everything you eat as well, i take it? yeah. so we'd be looking at the concentration of these gases after you've had some food but we think it's very important to monitor the food that you're eating, but also some of the other symptoms and lifestyle factors as well. we know things like ibs are very complex. we know there's interaction between the gut and the brain. so it's important to record all of these factors together along with the breath testing so the clinicians and the doctors can look at that entire dataset and say, ok, this is what we think is going on. and that means speedy diagnosis of what might be wrong. but of course, with a lot of this, it's important to actually constantly monitor it and see your reaction all the time to different things and that's what your new device should be able to do. that's right. so rather than having a single snapshot of, this is what was wrong on monday, our device allows you to breathe into it any time, any place, to tell you what's happening right now. what's happening with your microbiome? is some of the foods that you've

been eating or some of these sugars present in the food causing you problems today? ok. so we've got a working prototype here. we do indeed. so the final device is going to look like this. this is the final package. it looks like a computer mouse. yeah! inside it is where the magic happens. so we've got two sensors that are looking for the specific acids that's come from the microbiome — hydrogen and methane. and what we have here is a working prototype that, if you blow into it, you're going to get an immediate sensor response on the screen here. ok. i feel completely fine at the moment. so what do i do, just breathe? just blow into it. ok. keep going. that's good. and what you see happening on the screen — as the hydrogen and methane gas from your breath encounters the sensors, the resistance of the sensor changes and that resistance change is then telling us what the concentration is going to be.

do i seem healthy? do i seem to have a healthy gut based on what you're looking at there? it's also important to go by symptoms as well. so what the levels of the gas are matter, but whether or not you're having symptoms also matters a lot. it's those two things doctors need to interpret together. there are other devices in this space. how does yours vary from those? i think the two key things you need to be absolutely sure of are accuracy and measurement. so these gases are at very low concentrations so they're quite difficult to detect. so you need to make sure you're detecting them very accurately. secondly, we think it's very important to have doctors as part of the process as well. so how you can give the doctor more information to come up with a personalised plan for the patient. is there a risk that once people can take this into their own hands they're not going to want to see the doctor as well, theyjust think it's easier to just track it themselves? what you're trying to do is put more control in the hands of patients. ultimately, it's your health. you have a keen interest in your own health.

i think it's doing it responsibly. so, how can we make sure we put in features that are going to lead people to make the right decisions and in particular making the right decisions alongside clinician support? yes, it's very easy for people to want to dramaticallyjust cut out whole food groups. yeah. and we think that's wrong. so we want to make sure that you're making the right decisions and that's a combination of technology and humans that will help. so, as with much of the innovation that we see, it's not about removing the doctor or expert, it's about using technology to augment what's humanly possible. and more data and tracking along with still keeping some human care in the loop can certainly do that. i think that's really useful because it has taken me this many years to work out that i am slightly intolerant to certain foods and i think they've always made me feel a bit rubbish but i kind of normalised it my whole life.

mm, not good. meanwhile, nick kwek�*s been more concerned about stopping his stomach rumbling! and he's had to go to california for it this time. he's only gone and seen a flipping burger robot! from rotating woks to artificially intelligent pizza toppers to sophisticated salad servers. more and more of our meals are being made by machines. and just east of hollywood, i've come to meet a rising star of the robot chef scene. welcome to our innovation centre. we can run robots simultaneously around the clock, testing them like crazy. 0h, there's one there! yeah. flippy, the burger—flipping robot, has expanded its repertoire beyond the grill and is now focused on frying. the only thing the worker needs to do is to tell the robot what to cook and then to take the finished goods, put them in a paper bag and serve them to the customer. it will reduce food waste. it'll cook food more economically and more precisely than humans. and big brands have bought the sales pitch.

flippy has been installed in major fast food joints like chipotle, jack in the box and wimpy. white castle, they've had one of these the longest. we just crossed a half a million baskets. half a million baskets! it's a lot of potatoes! indeed. the set—up uses cameras and machine learning to identify what food is what, and a robotic arm then goes about its business. an associate team member can put one of these speciality items in the system and flippy will automatically recognise it without having to push any buttons or understand what the food type is. like all chefs, it gets better the more it cooks. as we collect more data about what food is cooking, how it's cooking, how it's cooking in relation to other items, flippy is getting smarter. the bot can manage up to ten baskets of different food cooking at once — which took some training. so they do a bunch of different testing of the robotic arm, but specifically on the gripper — the hand at the end — to make sure that it can properly pick stuff up. that's a bit of a challenge when you're in a hot, greasy kitchen.

we have some protection layers over our robot so that _ you don't get hot oil, you don't get greasel on it, it lasts longer. so that's definitely to consider. but i guess it's a well—oiled machine! abhishek laughs i couldn't help myself! we have two support cameras on the sides that our supportl team uses to monitor these units remotely. and we're looking for collisions. so, sometimes baskets hit the fryers and the robot might stop moving - so when there's an alarm, - the green light goes off and we get an alert saying that - there's been a collision. it's notjust burgers and chips they're making here, either — they've also created a drink—dispensing robot to quench people's thirst. they've called it sippy and are cooking up more contraptions. i'm printing some parts for a prototype that i'm working on right now. we can make some really fast iterations, work really quickly with all these machines. because of covid and other events over the last few years, robots are seemingly more welcome in the kitchen.

before the pandemic, it was, that's going to take a job, because there was no... there was a preconceived notion that all these jobs were filled and everyone was happy and thumbs up. let's go — and then, you and i and other people went to restaurants and they said, sorry, dining's closed, not enough staff. restaurant's closed, not enough staff. all of a sudden it was, well, robots are fine. is there a danger here that you're going to replace humans and the human workforce in a quite big way? it allows the people who were doing that job to focus on things that drive more revenue and are more guest—focused. so we kind of say, let people do the people jobs. but what about the back—of—house staff who are best suited to repetitive work? there's been other simple tasks that have been replaced by technology — phone operators, switching a cable from here to here. we've done it so many times so why would the fry robot be the one that cripples the whole world to where, "0h, we don't know what to do with people any more"? i think the first place where robotics and automation ai are going is where there's a lot of "help wanted" posters.

the system is not as cheap as...chips. it's leased to restaurants at a starting cost of $3,000 per month. but it will be a while yet before it replaces gordon ramsay. until then... has anyone got ketchup? i tell you, nick not only loves his food but he also knows so much about it. i mean, he's a fantastic cook and so passionate about it when he talks about it. yes. although i did see him eating a two—day—old takeaway in the canteen. no—one's perfect! thanks for watching. we'll see you soon. bye. hello there. good afternoon. well, the weather is very unlikely to ruin your outdoor plans this

weekend because, for the vast majority of us, it's dry and fine. there's a lot of blue sky and sunshine around, such as here in denbighshire in wales, the highest temperatures for wales and the south west of england, and even some sunshine across east anglia where it's been quite cloudy for much of the week. cloudy and cold. this is in norfolk and the outlook, well, high pressure just set to continue. so there's a lot more sunshine to come to. now, this is the satellite picture from earlier on today. you can see just how much blue sky we've got. the cloud towards northern areas of scotland likely to persist. some breaks in the cloud emerging across shetland and i think we'll see some of that cloud towards the channel islands break up too, some convective cloud may be developing over the high ground of scotland and we do still have that rather brisk onshore breeze towards parts of east anglia and coastal areas of kent, gusts of around 30 miles an hour. temperatures will peak in the low 20s in celsius for the vast majority of us, again cooler towards eastern coast. and don't forget that the sunshine is strong at this time of year. the uv levels will be high.

the pollen levels today also high. now, overnight tonight, it will feel a bit milder than it did last night. not quite so chilly. some areas of mist developing, lots of clear skies. again, more cloud just moving in from the north sea. this is how we'll start off sunday morning. now that cloud towards eastern coastal areas, east anglia and lincolnshire should gradually burn back towards the coast once more. it's always going to feel cooler, of course, towards those eastern coast again with the onshore breeze, a lot of sunshine around, perhaps just one or two light showers breaking out across northern ireland and south west of scotland, where we'll still see highs of around 23 degrees celsius. and it's much of a muchness on monday. rinse and repeat again. some more clouds moving in from the north sea through the night and into monday morning. then it should gradually burn back towards the coast again. temperatures will peak in the low 20s in celsius yet again, possibly a bit more cloud across eastern areas of scotland. now, as we head through next week, high pressure still dominates, it's still dry and settled, but the area of high pressure just gradually migrates further eastwards, drawing in a southeasterly wind, some warmer feeling air for the far south east of england,

possibly one or two showers for the southwest, but they won't last. here's the outlook for our capital cities. the sunshine set to continue, temperatures rising, especially in london.

live from london. this is bbc news. india's prime minister nahendra modi has visited the site of a major train crash in the country's eastern 0disha state. more than 260 people are known to have died and a thousand injured in the worst rail disaster since independence. turkish president recep erdogan has been sworn in for a third time following a run off vote criticised by opposition groups. police arrest 19 people in connection with plans to disrupt the epsom derby which gets under way injust over an hour. and it's about an hour to go before kick off as rivals manchester city

and manchester united go head—to—head in the fa