from the coronavirus epidemic has now passed 1,600, with almost 150 new deaths and more than 2,000 new cases confirmed. in france, an 80—year—old chinese tourist has died, the first covid—19 fatality in europe. at least eight football fans from ecuador have died after their bus plunged into a ravine in peru. they were on their way home from celebrating their clubs qualifaction for the next stage of south america's biggest club tournament, the copa libertadores. a0 other supporters were injured. canada is leading a renewed call for iran to hand over the black boxes from the ukrainian airliner, brought down over tehran injanuary. all 176 people on board were killed. canadian authorities say they need the contents so the data can be analysed properly by facilities in france.

now on bbc news, it's time for click. this week: kitchen hacks go to pot. football scores, and the flippable foldable phone. flat or bended? last week, youtube revealed for the first time just how much cash it's making parent company google. that was $15,000,000,000 last year. announcing its results for the first time seems like a right of passage — last week, youtube revealed for the first time just how much cash it's making parent company google. that was $15,000,000,000 last year. announcing its results for the first time seems like a right of passage — it has grown up and is standing on its own to feed.

—— two feet. i visited their london office to find out how it has come of age. kevin, youtube used to be the place where video went viral, but now it seems a lot of that happens on facebook or tiktok. how do you think things have changed? the internet is bigger. it is much easier to make a beautiful video now than it was ten years ago. when you look at now what the most popular videos on youtube are, they are not viral hit videos, but coming from channels producing lots of content regularly and that have large audiences. i think youtube has moved from this unintentional kind of quick video thing which we all associate with the early years of youtube to this sort of new world in which you have creators who have businesses and build audiences. few could have predicted some of the most successful genres. tell me about asmr. it is short for autonomous

sensory meridian response. these are whispered videos where people whisper or do things quietly to make audiences react. what sort of things might they do? they might whisper, or cook, or rub things on the microphone. it is a very unusual form of entertainment. but it is not designed necessarily to make you laugh or do the things that we think about for traditional entertainment. it is designed to help you relax or calm down. another big trend is recipes. making something the old—fashioned way can be time—consuming and fiddly. so some of the videos online, particularly many have gone viral, make it look very simple. but is it always possible to do what you are watching? well, chris fox has been finding out. you've probably been seeing food hacks like these online before — top tricks for tasty treats —

but are they too good to be true? millions of videos like this have turned up on youtube and facebook, but do the all the tips and recipes work, or will theyjust waste your time and ingredients? here is a milk carton flan from the lifestyle channel blossom. this video's had 17 million views. you put the ingredients in the carton, microwave it, cool it, and out pops a perfect carton flan. now, i followed this video step—by—step. i've used the exact same quantities. now, the first problem came when i tried to put this in the microwave, because the milk carton was too tall, it wouldn't fit. and that got me thinking, well, how did they fit their milk carton full of ingredients in the microwave? and it looks like they didn't, because if you rewatch the video, you'll see that they actually just cut the bottom of the milk carton off. not to be deterred, i put the mixture into a gym shaker and followed the rest of the video, putting it in the microwave to boil

for ten minutes. and did i get a flan at the end of it? no, i did not. next up, gummy bear hacks: easy diy dessert recipes for the weekend, recipes from so yummy. 3.2 million views. in this video, melting gummy bears turns them into jelly. here's me copying what i saw in the video. it turns out gummy bears are actually very thick and gloopy when they are melted, not runny like liquid jelly. will my spoon go into the jelly just as effortlessly as in the so yummy video? well, no it will not. because, as you might expect, this gummy mixture at the bottom of the glass is rock solid. let's have one more. this is from 5—minute crafts. if you've run out of popcorn, why notjust shove an ear of corn in the microwave to make some popcorn? now, i don't need to tell you that if you put an ear of fresh corn

into the microwave it will not come out as popcorn but willjust be hot corn. but i was willing to be proved wrong, so i tried it out in the name of science. when it comes out, it is warmer than before! i'm not the only one who has been intrigued by this — ann reardon is a food scientist and runs a cookery channel on youtube, and she's been investigating, too. it's the fake news of the cooking work — it's faked baking. the reason why it works is that it's more clickable, and clickbait content is currently working on the youtube algorithm. and apparently working on facebook, too. ann's been trying a lot of these recipes on her youtube channel, too. there's one on so yummy where they make cake icing out of strawberry ice cream. now, ann tried it, and it didn't work. i've also tried it, and it doesn't work. having a food science degree, i know what properties different things have and whether that will work or not. it's not possible to whip up ice cream, because the fat content

is not high enough. even if you get the most luxurious ice cream you will get, it will not whip and make frosting. that's an example of the faked ones, but there are now some which are going to dangerous territory as well. one on 5—minute crafts they have one when they put a strawberry in bleach to make it white. if a child was to watch that and do it, they could consume a lot of bleach, which is obviously not good for them. there is another video where molten caramel is put over a spinning whisk to make a sort of birds nest decoration to put on top of a dessert. molten caramel is hot — like, it's hotter than boiling water. so we made a box and put plastic wrap in front of it. the hot caramel melted right through it. while we're here, those melted caramel cake decorations they show, that's not the best way to make those, either. it takes a long time to melt one sweet, and usually theyjust burn and stick to the pan. the professional — and just as easy — way, according to ann, is to put your sweets in a blender, put a thin layer of that on greaseproof paper and put it in the oven forjust a few minutes.

that's an easy way to make caramel cake decorations that you can try at home. that was chris, and chris is here now. you didn't manage to bring me lunch, though, did you? i should have saved you some of my sweaty egg flan! i'm not sure it looked that appetising! what did the companies have to say? 5—minute crafts, which made the popcorn video that didn't pop, they didn't reply to my email. and first media, which runs the so yummy and blossom channel, well, they invited me to their studios in la to prove that the recipes work, but they said i couldn't film them doing it. they told me they only put recipes in the videos that do work, although i suspect not as shown in the video because we tried it and they didn't work, and the food scientist, ann, she said some of the recipes, there's no way they would work, even if you followed the instructions and used the most luxurious ingredients. so why are people so busy sharing these videos? i think they are obviously very visual, they are nicely produced. companies would say that the purpose of this is entertainment, they give you cooking ideas and inspiration. and, crucially, most of the people who watch these videos aren't actually going to actually try these

recipes, theyjust like the visuals. clearly. and this is what happened when i asked kevin at youtube about this. you seem to love these videos and share them a lot, but they're clearly not actually trying to make the food. i think for a lot of life hack videos, or kitchen hack videos, it's not about trying to take that fact or hack and use it in your life, it's just oddly satisfying to see it play out in front of you. it's just another form of entertainment. does it not matter? is truth that thing of past? truth is not a thing of the past, but i think that there is some contexts in which pure accuracy, perhaps, is not always paramount. keeping up with the pace of technological change can be difficult at the best of times — particularly for parents, who want to be able to keep track of what their children are doing, how much screen time they're having, whether all the content is appropriate.

and never has this been more true than when it comes to videogames. so mark cieslak has been looking at this very problem with a spot of help from one of the best—known faces in football. father—of—three and ex—manchester united and england footballer rio ferdinand is fronting a campaign to encourage parents to learn about the parental controls they can use in their children's videogames. i was someone who's been fairly involved in gaming throughout my adult life, and my children play, and we thought we've had a good balance in our house. you get in, you do your school work, you do your chores about the house, you have a balance between the gaming and being outside. but having an understanding of what your children are actually doing, that's always so invaluable to me

to understand what i can actually do in terms of actually controlling what type of games that they're on. do you think parents have to take more responsibility as far as videogames and their children are concerned? you have to take a key interest, like you take a key interest in your child's school life, take an interest in their game life because it's an integral part of their life nowadays like it or not. the get smart about play campaign is the work of the uk games industry trade body. it provides online guides about parental controls on consoles and computers, controls which can limit play time and prevent children spending real—world money on virtual items. well, we know that more than half of parents in the uk in particular have concerns about the amount of time their children and people in their care are spending playing games and on screens in general. this is part of an overall society digital literacy agenda. you know, so, really understanding boundaries, understanding how to protect yourself, understanding how to protect your privacy, it's part of a wider thing in society that i think we need to really pay attention to. research suggests that up to 99% of children in the uk aged between eight and 15 play video games regularly. compare this to research carried out by the nspcc which found only i9% of parents with children between aged of five and 15 actually

use parental controls on devices which connect to the internet. but some parents think that the games industry should bear a greater response ability. are they trying to empower parents, or are they passing the buck? they have a purpose and a responsibility to actually protect the mental well—being of our children. that is part of their role as i see it. every company that is producing content for our children has to take on that responsibility. features in games like loot boxes, randomised in—game virtual items which can be bought with real—world cash, have been compared to gambling, and have led to increased scrutiny of the industry. so does it need to clean up its act? we are businesses at the end of the day, and these parental controls and family are important, because you can turn of in—game spending.

that's why the conversation is really important, so it is a shared responsibility. while learning about parental controls improves digital literacy, perhaps some parents who play video games with their children might enjoy the experience as well. hello and welcome to the week in tech. it was a week that google started its appeal against a £2 billion fine by the european commission. it's alleged the company abused its power by of favouring its own shopping comparison service over others. the world's largest mobile show, mobile world congress, has been cancelled over coronavirus concerns. the decision comes after high—profile companies, including nokia, lg,

and vodafone pulled out of the event. and speaking of the coronavirus, in times square in new york, a robot has been providing information to curious passers—by about the virus. us and german intelligence services were outed for spying on governments through the control of a swiss encryption firm. from the cold war era up to the 20005, crypto ag supplied encoding devices which harvested secrets from countries including iran, india and pakistan. the first human clinical controls of a blood—drawing robot have started this week. researchers at rutgers university found that it performed as well or better than human clinicians. and, finally, some people are heavy—handed, i know i am, but now there's a robotic hand they can do the heavy lifting as well as have a delicate touch. it is capable of handling various objects and tools, like an egg, and playing the piano. it is expected these hands will be used in industrial sites, as well as everyday life. this week saw samsung's unpacked event.

yes, it's a phone launch time again. here i have the samsung galaxy z flip. now, whether you find this appealing or not, i have to say that on click, we've been to a fair few phone launches and it's quite refreshing to find one that doesn'tjust look like a rectangle. this is samsung's second foldable phone and is a more compact offering than the first, even though its ultra—thin foldable glass opens up to a 6.7—inch screen. and on the front here you have a display where it can give you all your notifications, when you get phone calls or text messages, they'll pop up there and there's a camera so you can take selfies without even opening the device. but once you do open it, well, some apps are optimised to be able to provide you with a viewing zone and an interaction zone. it wasn't long ago that the motorola razr was announced and one of the criticisms that that's

received is that the line in the middle where the phone actually folds is a bit too prominent. now, how much that crease would bother me if this was my regular phone, i don't know. i can see a line there but it is a folding phone, so i don't really know what you'd expect. oh, and it would set you back £1,300, by the way. here i have the samsung galaxy s20 ultra. now, samsung say the main reason people upgrade their phones is to get a better camera and that's definitely the focus here. in fact, it has up to 100 times zoom. if you take a look behind me, there are two small figurines up there. i'm going to try taking a photograph of them using this device, zooming in and see how clear it's going to be. the camera has 10—times optical zoom and beyond that moves into digital zoom. now, once you're in the realms of using the 100 times, the camera engages ai

to clean up the image as well. ok, it's definitely zoomed in, but the image is very shaky, so i think you'd really struggle to do this holding onto the phone if on a tripod it still looks like this, but you can see more, you can get a clearer image of what you're looking at. the question is — how much use is that photo? you certainly wouldn't want something that looked like that put on your mantelpiece, would you? this shot has been taken using the a8mp camera and the ai has helped create a clear shot. let's compare that to this image, which was taken using the 108mp camera, and then after the photo was taken, the picture was zoomed in on. so, that one is sort of clearer in a way. this one looks more like a work of art. over the past few years, rwanda's become a hub for technology in sub—saharan africa. jane copestake has been to look at a unique project hoping to bring

electricity to the whole country and possibly avert disaster. lake kivu in rwanda is one of east africa's great lakes. the beautiful landscape is attracting tourists for kayaking and fishing with hopes of generating a lot of revenue for the country, but something even more valuable is hidden deep within this lake. we're going 14km offshore to see the kiquatt project. it's where they're extracting methane gas from below the surface of the lake. it's the only project like it in the world. this barge took seven years to construct and lies on the lake's border with the democratic republic of the congo. the engineers here work 2a hours a day in 12—hour shifts, monitoring the conditions of the lake. kivu is highly saturated with gases, including methane and carbon dioxide from millions of years of decomposition and volcanic activity. these gases are kept under pressure at significant depths.

the lake is 480m deep. however, any disturbance to the lake from seismic activity or a lava flow could result in the gases leaking out. kivu is one of only three known lakes in the world where the specific conditions for this catastrophic event could occur. they are known as the killer lakes. in1986, a similarlake, lake nyos in cameroon, suffered a carbon dioxide leak. the resulting gas cloud killed over 1,700 people in nearby villages and all other living creatures in its path. if the gases in lake kivu escaped, it could have even more deadly consequences — it's over 1,700 times bigger than lake nyos and over 2 million people live around it. in lake kivu, there's a lot of concentration here, which, of course, is far much more

than what we have in lake nyos, so this is why it's very, very important to embark on such projects to reduce the content of the gas on the lakebed. there are 300 billion cubic metres of carbon dioxide and 60 billion cubic metres of methane in the lake. safely extracting the methane will help generate electricity for rwanda, something it desperately needs. this project is contributing about 30% to the need of the country. 30% — that's impressive. so, that 30% wasn't there before you started? which was not there before, exactly. large pipes below the barge bring in the gas—saturated water. this water is forced into a separator. at a certain depth, the gas starts to separate from the water. the phenomena there is one we would liken to opening a bottle of champagne. when you're allowing the water to be siphoned upwards, then it's also boosted by the lake pressure itself

and it's pushing the water upwards. water with a mixture of carbon dioxide, methane and hydrogen sulphide is sent to the barge‘s wash towers and cleaned. the carbon dioxide and hydrogen sulphide are removed. the de—gassed water is returned to the lake, and methane is delivered by a suspended pipeline to the shore—based power plant for electrical generation. this is the definition of innovation, building the project right from the design stage up until construction and now into operation. currently, 51% of rwandans have access to electricity. by 2024, the government hopes that will rise to 100%. the kiquatt project plans to deploy three additional barges here to help the country reach this ambitious target. now, over the past few weeks, we've been showing you some of the films nominated in the oscars best visual effects category, but we have

saved the best for last, and this week, we have sam mendes‘ epic first world war drama 1917 in store for you. this was the one that took the oscar, and if you haven't seen it yet, what is pretty remarkable is the way that the film is supposed to look like one continuous shot. general erinmore: your orders are to deliver a message calling off tomorrow morning's attack. if you fail, it will be a massacre. what sam's always wanted to do is to have the idea of the audience being sort of, a part of the story. instead of being in a window to the world of something, it gives the idea that the audience is travelling, going along with the story as an extra character, should we say. that, in itself, brings some

really difficult challenges. 91% of that film has a visual effect in it, from digital doubles or environment extensions, atmospherics. we put in houses or trees or bushes or canals, and it works at this angle, but then the camera carries on and two minutes later, we're looking at the reverse angle, something like that, and aesthetically it doesn't work, so we had a lot of logistical sort of issues to work out. what we talked about really was feeling. it's a strange word to use because obviously with visual effects... to help quantify it is we break it down into shots and this gets digitally stitched together, but actually it's more about a feeling of a sequence or a beat. go, go, go! no man's land is a really interesting sequence, because obviously that sort of sets the tone for the journey. this was all shot in england. one of our primary ideas or principles was to make sure that it looked like the north of france. mpc created cg horses,

we did environment extensions, fake barbed wire, added a huge amount of craters. sam had this vision for the end scene. 3, 2, 1, go, go! our work is really to tidy up and emphasise what had already gone on, because a lot of it was all in camera once again, we were only adding a little bit to the story but we weren't dramatically changing anything from battle apart from adding a few more dangerous, sort of, explosions that were closer to our heroes, and obviously the 500 extras who were on the set at that point. we were really adding a little bit more danger and making sure that from a cinematic point of view, it was visually a beautiful scene for them. colonel mackenzie: there is only one way this ends.

well, that's it for this week's show. you can keep track of the team throughout the week on instagram, facebook, youtube and twitter — @bbcclick. thanks for watching. hello. storm dennis continues to batter britain. looking back at saturday, well, it was windy everywhere, wasn't it, but the strongest gust of wind was at aberdaron in the llyn peninsula, 91mph gusts recorded here. we've all seen lots of rain as well, but the rain has been causing problems, particularly across parts of northern england, wales, the west midlands and south—west england.

now, there are lots of flood warnings in force and the number of flood warnings continues to rise hour by hour. and with more heavy rain in the forecast, that's clearly not a good thing. now, looking at the satellite picture, this is storm dennis. the centre actually near iceland. but it's this trailing weather front stretching for a couple of thousand miles out into the atlantic that's causing problems, because the winds are blowing parallel to the front rather than across it, and that means the front gets stuck and what that means is we've got a lot more heavy rain to come as we head into the first part of sunday. now, some of the heaviest falls of rain will be across wales, the west midlands and south—west england. if anything, the rain much heavier than we saw on saturday, for example, and there will be some heavy falls as well in northern england at times. given that we already have a number of flood warnings out in force, things could get really quite nasty for a time here as we head into the first part of sunday morning. cooler air across the north—west with blustery showers. now, looking at the weather picture through the rest of sunday, our weather front tracks its way towards the south—east. now, there is a risk that this

front could be slower to clear southern and eastern areas of england. in other words, there could still be quite a bit of rain left over even into the afternoon here, but it's going to be a windy day everywhere. gusts of wind again inland 50—60mph. 70 around some of our coasts, and those winds still strong enough to bring down an odd tree or two. so there is the risk of transport disruption whether from the flooding rain or from those very powerful gusts of wind. showers continue to feed in across the north and western. as we go on into sunday night, if anything, the winds are going to get stronger for a time across the far north of england and scotland as the centre of dennis passes close to the north of scotland. so the winds picking up could cause some problems here for transport as we head into monday morning for scotland. as we head through the rest of monday, it's a day broadly speaking of sunny spells and showers. the winds staying strong, taking a while before they ease gradually in the afternoon, and will continue to make it feel

quite chilly across these northern areas. beyond that, it stays unsettled through the rest of the week ahead. rain or showers in the forecast for most days and it will stay quite windy. but for most of us, it will also stay on the mild side. temperatures up to 1a degrees for london next weekend. that's your weather.

this is bbc world news. i'm simon pusey. our top stories: china says deaths from the coronavirus epidemic have now passed 1,600 — and in france, an 80—year—old chinese tourist becomes the first european, covid—19 fatality. at least eight people are killed as a bus carrying football fans from ecuador plunges into a ravine in peru. canada leads renewed calls for iran to hand over the black boxes from the ukrainian airliner brought down over tehran in january. the popular british tv presenter caroline flack, has been found dead at her london home. her family say she took her own life. troops are deployed in the north of england, as storm dennis hits the uk and northern europe.