be dry weather around, but also a lot of cloud. you could see some rain getting to northern ireland and scotland on tuesday. quite a benign picture into next week. it will stay mild for many. where the sunshine breaks through, it will feel very mild. the latest headlines from bbc news. i'm kasia madera. tens of thousands of civilians are trying to flee mosul as government

forces get closer to recapturing it from the so—called islamic state. 50,000 people have fled the city over the last fortnight alone. the iraqi army is now pushing deeper into the extremist stronghold in the city. the police have revealed a 23—year—old jailed for killing a boy and his aunt during a car chase in london last august had over 50 previous convictions. the family of the victims say they are disappointed with the 12 yearjail sentence he has been given. the singer ed sheerin has been speaking about his delight at racking up nine of the songs in this week's top ten charts. despite his success, he says it is time to rethink the way the charts are compiled. but is it from me. we will be back at two o'clock

but now here on bbc news it is time for click. this week, watch out, pollution. we will clean up the city with a bird? no, a plane? no. it is a flying fish drone. this week is the bbc‘s so i can breathe season, looking at ways to tackle air pollution around the world. we are out on the streets of london to test a new camera from a thermal imaging company. it has a sensitivity to a range of gases which are invisible to the human

night. the camera is supposed to be used by experts who know what they are looking for in numbers and colours that they see a bid is really supposed to be used in industrial locations as well where you are looking for gas leaks. but, i must say, even here i can see sprays coming from some of the exhaust pipes through this camera that i cannot see with my eyes. now, if you want to tackle air pollution problems across a city, you have to know where the pollution is coming from and at what time of day. that is something that mark has been investigating. poorer quality, as a result of pollution, poses a serious risk to public health. it is a huge problem. the global burden of disease data now suggests that a lack of clean air is the third leading cause of death in the world after high blood pressure and

smoking. but whether it triggers allergy or asthma, understanding the exact challenges that pollution causes, especially in a city, can be tricky. the levels of pollution in cities can vary a lot between individual streets. the more precise the information is, the better we can come up the information is, the better we can come up with strategies to improve things. we can identify areas with particular problems. action to gather that even more precise data about pollution is being taken on the other side of the atlantic, in chicago. because of the location of chicago in the midwest and the fact that it is a large city, it is something of a transport hub for road, rail and air travellers. all those different vehicles don't do any favours for the air quality in the city. here, a system is being installed which has

been dubbed a fitness track for a city. it is called the array of things when it is completed it will bea things when it is completed it will be a citywide network of sensors fitted to lampposts and polls. the rate will monitor a variety of things from local climate to traffic levels and the air quality of the city. eventually, all of the data the array gathers will be made available online for anybody to use. we have come just outside of chicago to the argonne national laboratory. it is part of the us department of energy and is the birthplace of the array of things. the donor is really into air quality, so they are really excited. here, the team behind the array continue to refine the centre

boxes and the technology they can tame, blazing with city officials and arranging the continual roll—out of the network across the city. this is the guts, if you like, of the array of things. which party you if the air quality sensor? this one is the air quality sensor? this one is the air quality sensor. it is an elegiac cell at tuned to a pacific type of chemical. this is a carbon monoxide one, this is the hydrogen. and it will record the total level of gas. installation of the array began towards the end of 2016. by the end of 2018, 500 nodes are planned for the network, spread across different parts of the city. charlie kaplan is the project lead. he took me on a whistlestop tour of some of the city's earlier census sites. so, charlie, this is the site of one of your first sensors, isn't it? this is one of the first six.

this one here does the air quality, not just the this one here does the air quality, notjust the general air quality but this one will tell us seven different gases and so that means we can say, well, this one is reading this gas particularly high and we know that that that is associated with a diesel truck. the new ones that we are putting in we have added an sensor that we are putting in we have added an sensorfor that we are putting in we have added an sensor for particles. what we can do with a particle sensor is we can look at the very fine particles that are measured by epa and other organisations. the smaller particles are the ones you cannot see but they are the ones you cannot see but they are quite dangerous. they will go straight into your bloodstream. the large ones are what triggers allergy. so if you are somebody with allergies related to asthma, you will be able to use the data from these nodes to look at poland across these nodes to look at poland across the city and you may decide to change your cycle route to school or work, a sum may be where the pollen concentration is around the city. chicago was not alone when it comes

to pollution monitoring. we have a system also in london which combines historical pollution data with current pollution measurements to provide an hourly update of pollution levels across the city. the rollout in chicago continues. the rollout in chicago continues. the array of things nodes have been installed in other us cities with one in seattle and another in denver and there is interest in the city —— system internationally as well. the data generated by the array of things will be used by researchers, scientists and healthcare professionals to get a better picture of the effects of poor air quality and pollution. when it comes to turning this information into action, that isjob of to turning this information into action, that is job of local government. these two employees works of the city of chicago and working out how the array of things can help city look at a range of

issues. we have pockets of increased rates of asthma among our children that doctors have known about for quite sometime but they do not have a lot of information on why they happen in certain areas of the city. the role of the array is to help us understand the issues with air quality in chicago in a detailed level because you cannot fix a problem if you cannot define it and understand it. we think about how heavy pollutant vehicles, say, if we installed hundreds of miles of biplanes, there is clear research showing that inhaling diesel fumes, especially by cyclists as they ride alongside traffic, can harm them. it helps us to picture and take a good look at where the bike avenues are and how that corresponds with the system. if you have a school or a vulnerable location close to an area that has increased air quality challengers, the data from the array of things will give us the ability

to define a policy that will address that. a good example here in chicago will be a quickly growing neighbourhood on the west side. it has evolved into one of our trendiest residential and entertainment district. but it has also been crisscrossed by any number of street level railroads. by looking at data and using data we will make decisions more confidently and we will know we'd better than many other cities have the ability to know that because of the data that we collect. here, the technology has a role to play in the fight against poor air quality. but the bigger pollution busting powers relate to local and national government. that was market in chicago. in london, i'm checking out a pollution monitoring device with a difference. i will give you a clue... this is the launch pad. with

this water tank, they can launch their prototype. they even have their prototype. they even have their own in tunnel. imperial couegein their own in tunnel. imperial college in london have a drone that can college in london have a drone that ca n fly college in london have a drone that can fly through the air, dive into the water and then leapt out again. splash! all the while, gathering data to give us a greater understanding of pollution levels above and below the surface. the plan is to release a swarm of them into an area of concern. this is our response to extreme environments or post disaster applications such as after floods toxic spills, or i'll spills, nuclearaccidents after floods toxic spills, or i'll spills, nuclear accidents or so numb is. they are different classes of applications and capital abilities that they had to do something. this low—cost tool brings an enormous value compared to many other methods

such as the human going there with a full protective suit. i was going to say, we have seen a lot of quite robots and we have seen a lot of flying robots. it never occurred to me that is quite difficult to get an underwater robot over great distances quickly and, so, you have combined the two. that is hard—core. so, yes, we willjust die of it in the water and then died out and fly it that way. in some applications it is not even accessible through the water, in floods or ice you may not get there. on the other side, and aerial beacon may not be able to get the information that local people need so combining the two makes sense. during a dive, the drone fills with water and then by releasing carbon dioxide from its on—board gas chamber it forces the water back out as a high—powered jet which thrusts the drone back upwards, propelling it into the air.

and in the wings unfold and it comes out of the water and it beautifully becomes this flying birdlike thing. it is quite graceful. that was a very romantic description. now you know what sort of guy i am and what i get excited about. there is a beautiful part of it which makes it elegant. and elegance in nature that makes it effective as well. having the folding wings might be beautiful but for us it allows us to reduce the drag that it would experience of the drag that it would experience of the dives in the water and allows it to dive more deeply, as well is protecting the wings an impact. hello and welcome to the week in tech. a week which saw airbus revealed plans for a hybrid car that flies. whenjaguar revealed plans for a hybrid car that flies. when jaguar land revealed plans for a hybrid car that flies. whenjaguar land rover revealed a search and rescue vehicle thatis revealed a search and rescue vehicle that is home to a heatseeking drain. and when high polluter showed off a 500 metre long test tunnel from

which it hopes to fire passengers at around 600 miles an hour. that would bea around 600 miles an hour. that would be a two second journey. time to scream. testing begins soon. it was also the week in which the revelation was televised. according to wikileaks, does the cia can listen in on targets using samsung tvs . listen in on targets using samsung tvs. even when users think they have switched off. a range of other surveillance methods were exposed including a spy department dedicated to hacking the products of apple. wikileaks say that the cia is out of control. apple and google say they have plug the holes and samsung said it takes privacy seriously and will be listening closely to the concerns of its customer. facebook was left red—faced when the bbc pointed out its platform was being used by convicted paedophiles to share sexualised images of children. and because the bbc shared the images with facebook to help clean up its platform, facebook reported the bbc to the police, accusing the

corporation of distributing images of child exploitation. want to buy a cheap house? this one took only 2a hour was to print and cost $10,000. artificial intelligence ahead of us, it is no surprise that tech giants are investing big time in data sensors. super brains to make intelligent decisions in the cloud. but is this the best tactic? here's dave lee. and video is taking a different approach. —— nvidia. it wants to do all that computation on this. nvidia is best known for creating chips to handle high—end graphics, at increasingly the company is looking to apply that computer power to data and ai. this week it introduced jetson t x two, the latest in their line of what are essentially supercomputers on a chip. so, the

jetson tx2 is really for artificial intelligence at the age, devices like robots, drones, portable medical devices, which need a lot of intelligence, but they are really small and they have small power. so jetson is going to give them the level of performance they need to do artificial intelligence in that small size. so a drone that has artificial intelligence on board is going to help find people that are missing in the wilderness, say, and find them and deliver them first aid and supplies. experimenting with the new gear, people said it has many practical applications. there are many reasons why you might want to keep your computer power on a local device like this. for starters, it is much more secure, because your data is not being sent to and from the cloud constantly. that means some decisions are made quicker, which, if you are riding in a soft driving car, you will probably appreciate. —— self driving. driving car, you will probably appreciate. -- self driving. there are many microcomputers on the market and most of them strive to be

as cheap as possible. not nvidia's. the jetson tx2 will cost at least $400. it is that time of year again. i've arrived at london's wearable technology show. 0nly arrived at london's wearable technology show. only some of the highlights don't seem to actually be wearable. well, i've always thought that one of the most natural uses for augmented reality would be to provide such now have in a car. —— satnav. that is one of the functions this device provides. it has this section on the dashboard, when images reflected onto this small piece of glass, and then we also have this dial on the steering wheel which allows you to run through various functions. things like being able to change or music, or answering phone calls without overt in your eyes away from that route straight ahead. the only thing is that you are actually changing the length of focus, so even though i'm

looking in the same direction, looking in the same direction, looking at the screen does take my attention away from the road a little. probably for less time than a separate satnav screen over there, though. smart rings, vibrating coats, sportswear tracking your every m ove . coats, sportswear tracking your every move. it has all been thought of. the market for wearables reached an all—time high in 2016, with 102.4 million devices shipped. but the focus has shifted away from smart devices connecting to multiple apps to simpler ones connecting to just one, and that seems to be a trend reflected here. if you are travelling somewhere on foot and you need to find your way, then some satnav in your shoes would of course be ideal. this device has been around a little while, which can attach to the laces of a pair of trainers. but now it also slips inside and insole, so if it is time

to turn left, well, your left foot will vibrate. time to turn right, and your right foot well. last year we featured a different type of vibrating in seoul. this is a prototype which is aimed at the elderly orfirm to prototype which is aimed at the elderly or firm to help them maintain balance. this year, the same company has a different product, a device for people suffering from parkinson's. it will shine this laser light in front of each foot to help them put each but steadily in front of the other. within parkinson's there is a symptom called freezing of gate, which is fairly common. —— gait. it makes an individual feel as which is fairly common. —— gait. it makes an individualfeel as if which is fairly common. —— gait. it makes an individual feel as if they are glued to the floor at any moment during walking. as you can imagine, if your feet are suddenly not following you, you become quite prone to falling. researchers found you can use visual triggers and sensory cues to enable a person to continue walking and taken another step. and another insole on display. this seems to be a theme this year.

this seems to be a theme this year. this time it is a personal safety alarm. if you want to activate it you type your feet together twice and you'll selected emergency contacts will be told there is an issue. —— your selected. to switch it off, you type your feet together three times. some products on show we re three times. some products on show were more finished than others, but overall it was a good glimpse at how some of the latest wearable tech is looking right now. that was lara. now, if you are a parent, like me, it has probably crossed your mind that your kids might be using technology a bit too much. how long are they spending on their phones? how much are they texting? but the popularity of texting? but the popularity of texting amongst young people isn't all bad. sumeet dowson has been exploring how one organisation is using it to deal with serious issues for young people. every monday morning, this woman spends four hours texting with people in need. she is a volunteer

counsellor for crisis text line, a free support service in the united states. councillors and textures remain anonymous for privacy reasons. ' ' remain anonymous for privacy reasons. -- texters. we have a lot of middle schoolers who are concerned about what is going on and they reach out to us during the day. they might be concerned about sitting alone at lunch, for example. we have texters texting in because they are in a domestic violence situation. most texters are young, under the age of 25. people tell us everything. they spill their guts. typically by the third message. nobody overhears you, you don't have to wait, even to be in a quiet place a quiet moment. the millions of m essa 9 es a quiet moment. the millions of messages exchanged on crisis text lines make up a data sets teeming with mental health insights. it reveals when texters struggle with eating disorders and where they have suicidal thoughts. the data was also used to build an algorithm. the

model essentially performs triage by analysing each word in the message. soa analysing each word in the message. so a person who is thinking about arming themselves would have a higher priority in the queue than somebody who is out after a breakup. —— harming. somebody who is out after a breakup. -- harming. we quickly learned there we re -- harming. we quickly learned there were other things that were even more high—risk, that we didn't think of or didn't know. things like #kms, which means "kill myself". conversations which reference things like either broken, tylenol, and bill, draino, all the like either broken, tylenol, and bill, draino, allthe household drugs that are within reach. the data is another mice and texters can t data is another mice and texters can opt out of data sharing. to promote mental health research some data is shared with researchers. scientists at sta nford shared with researchers. scientists at stanford use natural language processing to study about 3 million text messages. they uncovered five phasesin text messages. they uncovered five phases in the conversations. the introduction, problem setting, exploration, problem—solving and the

wrapup. the best councillors were really quick to get through this problem exploration phase. they were really good at getting to the heart of the issue to understand that, and they were quicker to move on in the conversation, which means that they then had more time to spend in this problem—solving phase. then had more time to spend in this problem-solving phase. at the end of the chat, texters can rate their experience and the council. the researchers found that effective councillors avoided canned responses and able to shift the texter‘s outlook. we built an algorithm set that could measure different kinds of perspective change from talking, using lots of negative words, to talking about more positive words, to talk about how much you focus on the past versus the present and future, and how much you focus on versus other people. the next step is to create training tools for councillors, like real—time feedback on the conversation, and exploring the potential of a conversational agent. a robot. while data science

and tech gets these self—professed data nerds that the crisis text line very excited, it will not use chat box. —— bots. every messages read and reply to buy a human. we couldn't let you go without mentioning this mind controlled robot that responds really well to a certain thought. in collaboration with boston university, mit's computer science and artificial intelligence laboratory has published a system which allows human uses to correct a robot's m ista kes human uses to correct a robot's mistakes by thought alone. it uses the signal we produce when we detect a mistake. it is called the error potential. the user wears an eeg cap and watch as the robot sought paint and watch as the robot sought paint and wire into two bins. if they see the robot making a wrong choice, they simply think, that's wrong! the cap picks up that thought and the robot will correct its mistakes. we are robot will correct its mistakes. we

a re interested robot will correct its mistakes. we are interested in exploring the possibility of combining the potential —— error potential with other types of signals, which might be easily reliable. even though these are baby steps there are tremendous applications that could happen in the home, on the factory line, or in the floors, so this technology can help support people in their daily activities, whether they are at work, at play, or in transportation. pretty interesting stuff, although admittedly, i think thatis stuff, although admittedly, i think that is still in the far future. so how about i tell you about something in the more immediate future? next week, click is going to india. we will be travelling across the country to meet the people working ha rd to country to meet the people working hard to change lives, save lives, and maybe one day try out a new life. i can't wait. it is going to

be brilliant. join us on twitter throughout the week for more techies and behind—the—scenes photos and we will see you next week in india. —— tech news. saturday looks like a better day for most places. england and wales will be close to this area of high pressure on the continent, with this weather front pushing into scotland and northern ireland during the course of saturday. so we start saturday on a damp note across scotland. some rain around, most of its moderate. it should clear away and become more confined to southern parts of scotland and just clear into eastern parts of northern ireland. this rain will arrive

across northern england and north—western wales in the afternoon. ahead of it, it stays dry on saturday morning, for many. there will be able to cloud around, some mist and murk, maybe some brightness in the southern counties of england. through the day conditions improve across the south and south—east. the sunshine appears and it will feel quite warm. this weather front slowly sink south—east into north—western parts of england, into northern and western wales as well. some sunshine developing for northern ireland and scotland, where we get the sunshine in the south—east, though, we could see 60 or 17 celsius. —— 16 or 17. it will feel very springlike. for the rugby union match game in rome and london, it should be fine and dry weather, both places quite mild, temperatures in the midteens celsius. this is where things start to change, saturday night, certainly into the early hours on sunday. they weather front moving in from the west, that peps up front moving in from the west, that peps up the rain from england and wales. a heady bursts likely across

central and southern parts. light and patchy further north and west. again, it will be another mild night. sunday is looking different, quite a night. sunday is looking different, quitea damp night. sunday is looking different, quite a damp and soggy day for much of england and northern wales. potentially heavy rain is well pushing through the south—east. it will stay dampier all day. further west guys will brighten up. —— damp here. a touch cooler, with temperatures around ten or 11 degrees, maybe 13 celsius in the south—east. that wet weather clears away on sunday night, and a bit rich of high pressure builds in from monday into tuesday. this weather front promises to bring maybe a bit of thick cloud and light rain to the north and west of the uk later on tuesday. main message, i think, north and west of the uk later on tuesday. main message, ithink, to start the next week, is that on a mild scene, there should be lots of dry weather, variable cloud, where you get the sunshine it will feel very mild. hello and welcome to bbc news.

broadcasting to our viewers in north america and around the globe.. fears are growing for the tens of thousands of civilians trapped in iraq's second city of mosul as government forces try to recapture it from so—called islamic state. 0ur correspondent speaks to some of those who have managed to escape. translation: we got our freedom, but it cost us a lots. i lost my house and my children were injured. the pentagon promises a full intervention into military personnel who shed nude photograph of female collea g u es who shed nude photograph of female colleagues on social media. volkswagen pleads guilty in american court to charges related to its diesel emission scandal. prosecutors say that the fraud went to the