using cameras in its body and in the user's belt. but sometimes it's good to look at where we've come from. the robots exhibition at london's science museum is a 500—year history of humanity's attempts to create robots that resemble us and our behaviours. there are more than 100 robots here, including some old friends that we've met before. and this amazing swan, made from silver, is all the more incredible because it was made over 200 years ago, in 1773. it's incredibly fragile inside. one of the issues is, how do you get a machine that old to work. so we've had two weeks of highly esteemed conservation colleagues piecing things back together. how does it work? what's inside? you've got a whole series of these silver rings, almost stacked one on top of the other. they are designed to move as it moves as well. the earliest robots worked in a clockwork fashion.

clocks are the earliest self—regulating devices, so they are robots, effectively. if you accept that these clockwork creations are indeed robots, then you can also argue that the earliest robots were clocks. it was these mechanical marvels that made the industrial revolution possible, mobilising hundreds of workers to be at the same place at the same time, enabling goods to be transported, trains to run accurately, and allowing industry to become an efficient machine. the industrial revolution was also the catalyst for massive social change across the world, bringing about the rise of the working class, and sparking ideas like capitalism and marxism. now, in the west, cuba found itself at the epicentre of this shift. it was the poster child for communism in the west, right in the back garden of the us, the heart of capitalism. richard taylor has been to cuba

to see how the island is now moving with the times. the iconic images are strikingly familiar. cuba today still feels in some ways otherworldly, stuck in a 50s time warp. life for most of its 11 million citizens is simple. they've been living in a state enforced digital wilderness. a decade ago, you needed a permitjust to buy a pc. today, if you are lucky enough to own a smartphone, chances are it's offline. there is no mobile data, so cuban apps are designed to work without a connection. until recently, even basic internet access could only be found at desktop computers inside state communication centres. long queues persist but now people are coming to buy internet scratchcards which can finally get them online elsewhere. in this havana park,

small gatherings of cubans are all enjoying the internet. but getting online is slow, unreliable and, perhaps unsurprisingly, censored. luis is a self—proclaimed hacktivist, and as a former government it administrator, he knows the system well. everything in cuba is restricted, filtered, as the rest of the world. basically, they censor everything that might threaten government power. it might be porn, gay, or political things. basically, most political things. but the biggest barrier for locals — the price. a single hour of full web access costs $2, three days‘ salary. they don't have the time to see what's the internet, really, because of the price of the internet. and they push them to do what they need to do, which is facebook, communicate

with theirfamilies and make a free phone call. the government says expanding the internet is a priority and central havana is now conducting trials of in—home net access for 2,000 properties. and it boasts of a growing number of public wifi hotspots, too, around 300 in total, and growing. still, not exactly blanket coverage for a country 700 miles wide. cuba blames its ageing communications network on the six—decade old trade embargo with the us. critics say that's a convenient excuse for a communist state that fears losing control over information. relations with america are now at best uncertain in the post—0bama era. in the aftermath of the president's historic visit here two years ago, prospects for american companies doing digital business on the island have improved. amongst them, google, company boss eric schmidt inking a deal in december that gives cubans fast access to content from services like youtube and gmail.

the thing is, when you are running an internet—based business, the last thing you want to do is traipse across town to find a connection. so some cubans who are fed up with the government strategy on access have come up with inventive solutions. the results are found on rooftops in towns and cities across the nation in the form of pole—mounted antennae which are pointed towards the local communications centre, giving them internet access and even wifi. the practice isn't exactly legal but as i discovered that minor detail does not deter cubans from getting their information fix. this is the paquete semanal, literally the weekly packet. it refers to a highly organised service in back streets and front rooms across the country, giving locals content downloaded often only hours earlier via satellite. there's pirated movies, news shows, documentaries, dramas, magazines and mobile apps. it's hugely popular with customers who can fill their usb drives with an entire terabyte, hundreds of hours, for the price

of a single hour online. and the rise of the paquete is the price the cuban regime itself is paying, a reaction to the state dogma of keeping its people restricted. cuban authorities should be less afraid of the free flow of information, because the need for information is a hunger. people need information and people will get information, no matter if you are going to provide it or not. there is a political need to understand differently what the internet means. progress is undoubtedly too slow for many cubans. but recent overtures do at least give some people here cause for hope. hello and welcome to the week in tech. it was the week that samsung's chinese factory supplying batteries for the ill—fated galaxy note 7 suffered a blaze. luckily no one was hurt. twitter announced its new anti—abuse

policy, which will introduce safe search, collapse potentially troubling replies and aims to prevent abusive accounts being reopened. and youtube is launching live video streaming from their mobile app but only for channels with over 10,000 subscribers. uber have employed a former nasa engineer and are working on a flying car. yes, a flying car, that they say could be ready in five years. although there are a few obstacles to overcome, like the authorities allowing them to actually fly. we've seen a few ideas of how to take quad copter drones out of the sky but here is something for heavier duty drones. project sidearm has been developed by the pentagon's research wing. it aims to safely grab unmanned aerial vehicles from airspace using a crane type setup. and finally, there's a new way of finding love, by sharing hate. new dating app hater matches users by the things that rile them,

with topics including bad pavement etiquette, rent costs, and even politicians. i'm sure that first date will be a laugh a minute. there are plenty of friendly faces at the robots exhibition at london's science museum. there are some which are different enough to look unthreatening and lovable. and there are some, well, some really quite unnerving. currently, the european commission is considering the ethical issues that robots raise, including whether they should have a kill switch, whether they should have rights, and whether they should be considered as electronic persons. and what about those ethical, or even life or death decisions? this is a representation of an experiment in which one robot

was programmed to save one of two smaller bots from falling down a hole. if one was in more danger than the other, their big brother would save it. however, if both smaller robots were equally in danger, big bro would often freeze with indecision. in that split second where the robot is going, "oh, no, "there is an equal chance of both dying, i don't know what to do", something kicks in, in the human brain. we are drawing on our attachment to the things that might need saving. we are drawing on maybe a set of moral beliefs or values. we are not entirely sure what is going on in there but we can do what feels right in that moment. so, for now, robot ethics raise more questions than they answer. but while robots are learning how to avoid causing real harm, some humans seem way ahead in causing virtual harm. in video games at least. sword fighting game for honour is an unusual medieval mash

up which pits knights, vikings and samurais against one another. this is bodiam castle. what better place to come and get hands—on with a video game all about swordplay than here? there's just one thing preventing that from happening, though. at six foot nine and weighing nearly 30 stone, icelandic strongman thor is this closest thing the game creators could find to a viking warrior. fans of game of thrones will be familiar with him as sir gregor, better known as the mountain. in order to play the game, it's going to be a case of mark versus the mountain in a series of challenges. the game allows players to assume the role of a range of different characters, from heavy hitting, muscle—bound warriors, to nimble lightweight assassin—type characters. but in the real world, how important is brute strength? well, if a warrior can't

even lift their weapon, how are they going to fight with it? so a test of strength against a guy who competes in the world's strongest man. sure, i can do that. all right. hold on. i've got to hold it here, yeah? right, get into position. fantastic. like this. hold it as long as possible. ok, i think i'm doing all right. straighten your arm. straight. oh, my word. that is really... straighten your arm. come on! hold it. it's gone. excuse me while i go and have a lie down. i think i've pulled something. oh, my word. you captured zone a. next up, combat. medieval warriors didn't have to worry about health and safety. we do, so plastic goggles are on. fortunately, my opponent

is made of straw. my task is to do as much damage to this dummy with this sword as i possibly can. en garde. that's not bad. no good. i'll show you how it's done. so the second round belongs to thor, but i think the tide may turn in round three. thor has bested me in a test of strength and in martial skills. however, this is my arena. welcome to my dojo. so we're going to have a one—on—one duel. his character is, of course, a viking. mine is a medieval knight. the match will be best of five. when it comes to getting hands—on with the game, there's not a chance that the big fella is going to beat me.

or is there? this is not filling me with confidence here. game face. game face on. here we go. this is a bit more like it. the thing about this game is you can'tjust button bash. you won't get very far at all. it's got a very fluid combat system. at the heart of it is matching the stance of your opponent and countering it. you have to think a little bit more tactically. how do you like the taste of them apples? bring it. flipping heck. he did me in about two hits. i've got the upper hand, i've got the upper hand! i actually won.

i will see you, sir, in valhalla. thank you, thor, that was a very challenging game indeed. we are in the middle of nowhere and if i could ask you for one favour, that would be great. can i get a lift back to london? sure, why not? come on, jump on. i had thought of a slightly different sort of lift, but there you go. ever wondered what cats get up to when no one's there? meet roxy and zara, who seemed

agreeable to taking part in some gadget testing. sorry. if you've ever wanted to watch, talk to or even play with your cats when you're not with them, then this could help. once the device is connected to your home wifi, you can login anywhere you can get your phone online. there's a laser game to play, snacks at the tap of an icon, and a function to proudly make and share videos and cat snaps. this rather unusual looking setup works in quite a similar way. there's a camera so you can see the cats remotely. also the ability to give them food wherever you are. plus this toy, which is apparently something that cats might like to play with.

zara and roxy were possibly slightly intimidated by the jolting of the feathery thing, and the app was extremely temperamental, making setup a rather tedious experience. but when it came to the cat reactions, maybe us being there was a distraction for them, so there's a chance the devices could have fared better if they were home alone. i think the food dispenser, if they'd been hungry, might have attracted more interest. they found the whole thing a little bit unsettling. this smart collar has been around a little while now and is available for cats and dogs. it allows owners to keep an eye on temperature, pulse, breathing rate, heart rate variability and even the positions a pet is in, so could be particularly beneficial if there are health concerns or an injury to keep an eye on. don't worry, it's ok.

i know my friend's cats are not willing to wear any sort of collar and i have to say this one is pretty large. look how much bigger than a cat i am, and my activity tracker is only this size, so i can see it could be a little bit intimidating. meanwhile, there seems to be a game of cat and mouse going on here, the latter played by a remote control rodent. although it actually consists of the cat being chased by the mouse, which probably says it all about my day's filming. that was lara, and this is maria, the first blockbuster robot from the ground—breaking 1927 film metropolis. the visual effects in that movie were absolutely stunning, given that it is actually 90 years old. next, we are going to continue our look at some of the visual effects behind the latest blockbuster movies.

we have adam valdes, bafta and oscar nominee, to tell us more about the visual effects he used to bring back to life thejungle book. a lot of people have asked me, "why would you do a movie "in the jungle and notjust go to the jungle, or some jungle, "some set that plays for a jungle"? and i think the real answer is, you can't find the place in reality that we've made, you know. we made something special. every time you see the world in jungle book, someone has fabricated plants, trees, the dead twigs and leaves on the floor, all of it. and it's only really when this around around him makes him feel surrounds him makes him feel present within it that the magic trick comes off, that you believe that this is just a photograph,

that we went somewhere and shot it. so we take a shot like mowgli saying goodbye to his mother and we say, john really wants some sort of physical contact. it needs to be an intimate moment, their eyes need to be locked onto each other. we can't have a feeling that he's acting to a tennis ball, a stick or some marker. we really need to feel the scene emotionally. you can locate the positions of his hands, the puppet for the mother wolf. and we can track it really carefully in three dimensions with our computer software. that way we make sure the contact is correct, and then we simulate the fur on the mother's neck. and we actually replace the better part of his hand with the digital double of his hand, so that the cg hand and the cg fur of the mother wolf are actually in the computer together, and when we put our lighting on that and create the final images, they really look connected.

the magic trick is blending the hand into his arm. it's easy to focus on the fact that we pulled off two main things, these talking animals that people felt emotions from and this complete 3d world we had to create, and that those two things are really major accomplishments. starting off, i did not know if either of them were going to work. the very first time i combined photography of mowgli with a digital background, the background was grey, not even photorealistic. but it was just seeing an image come together where we had planned a shot, filmed it, brought it home, put it together with the digital world. the kid was walking along this curvy branch. and he looked like he was there. and i thought to myself, "0k, maybe this is going to work". you know, "maybe he's

really going to look like he's in this world". the render power required to generate a movie like this, i think it was 240 million renderer hours, or something like that. which means if it was one computer it would have taken 3,000 years, some number like that. these individual frames that you see can be 40, 50, 60 hours on a computerjust rendering one frame. the difference between a video game and our imagery is that the video game uses hardware on your computer to generate in real—time an image. and they are amazing, what they are doing. to go from there, however, to complete fool your brain, fool your eye realism, requires quite a lot more computation, because you're simulating the behaviour of materials and light. and that has come so far in the last five years. i think we'll see more and more imagery where we really start to not be able to tell the difference

between something that's computer—generated and real. and that can be a little spooky in one sense, but it's pretty fascinating for creative people. that was adam valdes on the magic behind the jungle book. and that's it from robots at the london science museum. i'll put a load of photos up on twitter for you to browse through at bbc click. thanks for watching and, yeah... we'll be back. 0n. president trump says he may rewrite the executive order that attempted to ban people from seven mainly muslim countries from travelling to america. the president's initial executive order

was overturned by the courts on the grounds it was considered unconstitutional, but donald trump did say he had not ruled out an appeal to the supreme court over that original director. 0ur correspondent has sent this report. after a federal appeals court backed a stay of his executive order, donald trump vowed he would see his opponents in court. speaking on air force one, en route to his weekend retreat in florida, the president revealed he was actively weighing other alternatives. we'll win that battle, but we also have a lot of other options, including just filing a brand—new order on monday. i like to surprise you. we need speed for reasons of security, so it could very well be that we do that. unveiled at the end of a frantic first week in office, in this morning showed he is still not happy with the judges. 0ur not happy with the judges. our legal system is broken, he wrote. 77% of refugees allowed into

the us since the travel reprieved hailfrom the the us since the travel reprieved hail from the seven suspect countries. so dangerous! the original executive order was signed at the end of his frantic first week. it immediately brought chaos to airport terminals and sparked protests across the country. this is what democracy looks like! it suspended america's refugee programme and bound travellers from seven majority muslim nations. exactly how the white house might rewrite the order is not clear. perhaps that is something donald trump is considering this weekend as he hosts the japanese prime minister in florida. lawyers would almost certainly have to address the claimed the ban is unconstitutional in its current form, essentially because it discriminates by blocking entry to the us on the grounds of religion. as he went for a round of golf, the president reasserted that

tough immigration controls are crucial to protect america, but for now, people are free to travel. european union countries could struggle to maintain a united front during brexit negotiations, according to the president of the european commission, jean—claude juncker, who has told a german radio station that the challenge of britain dealing with each country individually will put pressure on the bloc. 0ur political corresponding chris mason is here to explain. what has he said? yes, he has done an interview with this radio station that is to be broadcasted tomorrow. reuters has reported what he said during the last hour. the focus on the forthcoming brexit negotiations will be what the british government will be what the british government will be able to achieve or not, and what are the hopes and fears for the forthcoming negotiation. this interview offers an insight into the hopes and fears on the other side of the channel. here is a key quote from jean—claude juncker. the other countries don't know it yet, he

says, but the brits know very well how they can tackle this. they could promise country capital avis, country b and 20 c something else, and the aim would be a united european front. that will be the big challenge for the remaining countries. they are part of this bloc that requires a certain amount of compromise are working together, but they have their own individual demands and desires as well. another reminder of the unprecedented scale of the challenge coming from the uk and the u, as we are nowjust weeks away from the brexit process beginning. —— the uk and eu. indeed, thank you. at least six people have been killed, and 20 more injured in a car bomb attack the capital of afg hanistan‘s helmand province. afg hanistan‘s helmand province. a car loaded with its close its was driven into a group of soldiers outside a bank. they have been —— they had been queueing to collect their salaries. the taliban have taken this possibility for the attack, having previously targeted the same bank. campaigners have delivered a

petition with around 50,000 signatures to downing street calling for theresa may to reopen a scheme to a cce pt for theresa may to reopen a scheme to accept lone child refugees. the campaign has been led by former refugee lord dubs. the government this week scrapped its plans to re—home thousands of unaccompanied children from syria and other war zones after the arrival of just 150 youngsters. another 240 pilot whale have been stranded in a room at bay in new zealand and what conservationists say is the country's biggest beaching for 100 years. the pod is thought to include some of the wales we re thought to include some of the wales were rescued from the same area yesterday. 300 wales have died in recent days. you may find of these scenes disturbing. doing whatever they can to help before it is too late. these volu nteers before it is too late. these volunteers have been working for many hours to keep the wales cool as they lie stranded. some say is singing also helps achieve them

calm. but what they really need is high tide. very quickly, this tide has come in, and we are to our knees. some people are up to their waists in water, and we are getting a bit of floating happening, and we're helping to assist the whales with the breathing until the water is deep enough for them to swim. this is one of the worst whales strandings in new zealand's history. 400 whales came