opened fire on opposition supporters alleging fraud in monday's elections. three people were killed during protests in the capital, harare, after the electoral commission said the governing zanu—pf party had attained a two—thirds majority in parliament. the united states government's decision to impose sanctions on turkey's justice and interior ministers over the continued detention of an american pastor on terrorism charges has been strongly condemned by ankara. the foreign ministry said turkey would retaliate against what it called washington's hostile stance. police in sweden are searching for two men who stole some of the country's crown jewels from a cathedral near the capital, stockholm. witnesses the thieves jumped into a small speedboat and sped across a lake. two jewel—encrusted crowns and an orb dating from the 17th century were reportedly taken. now on bbc news it's time for click. this week, big green dome.

deep blue sea. and that yellow jersey. the eight planets of our solar system, all unique and instantly recognisable. and don't they look amazing from our viewing podium here in outer space? now what we really wanted show you is just how good visuals have become. not only does the graphics computer generate all of these lovely images but as the cameras move about, the objects in the background appear to stay in their correct positions.

now this is not easy. this technology originally came from the movies and now it has come to tv. so, here we are in the bbc‘s virtual studio, and the first thing you will notice is obviously that the graphics computer replaces anything that is green with the background. but, in order to draw all of the objects in the right place in 3—d space, the computer needs to know exactly where the cameras are so it can draw everything from the right angle, and that is why all the cameras have this set of reflective tracking balls on top of them. it also means that i can take my own set of tracking balls and turn this into a virtual hand—held camera that i can fly to the sea. so, there is mercury and venus, earth and mars, coming round jupiter, just duck under saturn, and there is uranus and neptune. and here's the thing, just as we are getting used to having this much fun in a tv

studio, at the top end of the movie industry, they're getting ready for something even more incredible. here is mark cieslak in los angeles. the next big leap in cinematic technology could be upon us. called intel studios, this is the first time a crew has been allowed to even catch a glimpse behind the scenes of this state—of—the—art equipment. this spase is designed to film in 360 degrees, a technique known as volumetric capture. diego has worked on the visual effects in movies like gravity and warhorse. now he is heading up this operation. so this is your volumetric space. it is indeed. it is pretty big. it is the largest one in the world. it is currently focused on large—scale volumetric capture, and it is a unique space that we have built, dedicated for filmmaking volumetric.

can we take a look inside your dome, please? wow, that's a lot of green. that is a lot of green. it is a lot of space and a lot of cameras. how many cameras have you got here? well, currently have we have more than 100 cameras. our goal is, how do you have enough sensors to capture the information from any angle? so you can see around, it is really a variation of angles and positions that we used to capture anything from any direction. in this space, a scene can be recorded once but is recorded on all of those cameras surrounding the actors, so every single angle is covered. the individual shots are pumped to the dedicated servers which then processes these into the cloud. this is a 3—d representation of the entire studio. the action can then be watched

from any angle the viewer desires. once decisions have been made about where to position the camera, the action is cleaned up and it is complete this particular scene was made several times. this was captured on the 15th attempt. you can create virtual sets and integrate performance around that, but the key thing is you can keep that live performance, you can keep the presence that the actors have, the interaction between them, and once you have digitised the information, once you have basically generated this volumetric, immersive data, it can really be walking in cyberspace and reshoot the entire thing again. the filming process, with its 100 plus cameras all filming at once, generates a massive amount of data, all of which is processed and stitched together on—site. in total, there are 10

petabytes of storage in here. that is the equivalent of 133 years of hi—def video. paramount pictures have penned a deal. because the dome separates the studio from the crew filming, directing is similar to filming in a modern news studio. so no suits, no motion captured things, it is here, and that would be the performance. this is my opportunity to try out this volumetric studio. i am used to working with cameras, but it is going to be difficult to work with over 100 of them. they will be able to capture from every single conceivable angle. i am going to attempt to get this ball into that hoop. let's try that again.

this time, the team had backgrounds and create a seamless shot from the 100 individual captures. and the crowd goes wild! creating the shot is not quick, though, this one took about 150 hours to make. as we look at filmmaking, we want to create that, that transition. how do you immerse into this world and into these experiences, but with the real actors, with the real performance? hello and welcome to the week in tech. it was the week that facebook censored new paintings from a flemish master, rubens. an underground lake of liquid water was discovered on mars. and here on earth, walmart announced a new delivery service

in partnership with google‘s waymo. it was also the week that a team of german engineering students set a new hyperlink speed record of a57 kilometres per hour. the team from munich beat the record set last year by 50%. heathrow and jfk airports trying out new scanners for carry on luggage which could put an end to the ban on liquids in carry on baggage. the technology can see inside the bag, so you do not have to take out your liquids or separately. blocked an technology is keeping record of cannabis sales in canada. the country's health minister wants to monitor sales while keeping users‘ data private. the drug will be legalised in canada in october next year. the popular game cards against humanity launched an unusual online dating site this week, where you can date and infiltrate members of the so—called islamic state. the american creator of the game says she wants the game

to dismantle racial stereotypes. finally, this looks like fun, but a new product from the company segway will be banned in the uk. they reach top speed of 12 kilometres per hour. under the uk highways act of 1835, they are classified as carriages and are to be banned from the pavement. no, aliens have not landed on earth. this is london's royal albert hall, which became a giant canvas for an amazing night show to start the bbc proms. powered by 20 laser projectors, it took the team about a week to set up outside the hall. called 1a to 18 now, it is set to music composed by anna meredith, inspired by the mitigation methods used in world war i. we found five movements,

one, two, three, four, five, and a rough movement. but nothing really musical, detail—wise, just shapes. creating the shapes to match was the work of 59 productions, who illustrated telegrams sent by soldiers and even code breaking. this is where the team practices the projections. they create these tiny 3d printed models of real—life buildings. instead of using ten or 20 projectors, here they usuallyjust two to create the images on the building. it is incredible. the process for us was to go to edinburgh, a laser scan of that square in that building to do an accurate 3—d model. we take that model, we use that for our animation. obviously the last stage of the project, we see things on a model because it gives you a sense of how content moves around corners and how things feel. 59 productions have previously created the light shows

with the guggenheim museum in new york, and the sydney opera house, but its next project is going to focus on the sound of minutes of silence in a dark room with no light at all. we like to try and do things that are quite different, i suppose, so sometimes it is huge scale and colour and the crowds, and sometimes it is intimate and small in museums. the next chance to see this is at the edinburgh festival on august three. that was jen at the royal albert hall. now, the tour de france is coming to an end this week. the monumental 3351 kilometre race is now 115 years old. fans love its epic proportions and its gruelling pace, but this year they may also be able to enjoy lots and lots of lovely data, because analytics and machine

learning are coming to one of the oldest sporting competitions in the world, and kat hawkins went to find out how. this year's tour de france is taking place against the same beautiful french mountains as always. but there is a big difference this year. technology is playing a big role. cycling is becoming increasingly data driven and for good reason. masses of data can be collected and in the sport of fine margins and superhuman endurance, those insights are the key to energy efficiency, strategy and gains. we look at many things, we look at obviously heart rate, power data and their maximum power, and their altitude and elevation gain. so we look at that and we see how the riders are building, and we leverage that data to try and build them to be stronger and better in stage races.

but how is the data collected and transmitted ? that is where these little devices come in. it may not look like much, but this small clip—on device is on the back of every bike taking place in the tour this year and it has actually been revolutionary. they send real—time location data to a nearby vehicle. it then beams up to a following helicopter. it is then sent to the data truck for real—time analytics. and this is where the magic happens. from bike to motorbike to helicopter to here, this is where all the data for the tour de france is being stored. the data truck is where data is analysed, enriched, and visualised for broadcasters and teams. there is even enough data for machine—learning algorithms to get to work. the depths of data analytics produced from simply a gps device is staggering. contextual data such as 3—d maps, weather, gradient, and rider information is also added to bring the data to life. during the race, riders wear earpieces and following closely

behind them is the data car, where the team analyst is assessing the data and feeding them live information. what happens in here? it is quite an important place, isn't it? if you imagine you have a comms office, at nasa, the details come in, to the moon, when all the details come in and they can be from all directions, and we send out one message to the riders. hundreds of datasets are analysed, from competitor tactics to live course condition. so we analyse all of the climbs, the gradients of the climbs, the road surfaces, the width of the roads. any road furniture. anything coming around a blind corner and there is a pedestrian crossing, all of these things we try to identify. the tour de france, with restrictions and sponsorship deals, we do not get any heart rate and power data, but we do get location, which is absolutely crucial because we can make decisions much, much quicker. ok, so we are in the race. this is happening, this is live.

what are we saying to our riders? so we say, "come on, serge, you've got 250 more metres." round the next corner here, it's a hairpin. you won't see it but it flattens off. you will have drinks in 400 metres, so you will get to cool down, take your drinks and we've only got 10k to the finish. good luck. i can see instantly that the psychological impact of that is huge, but how do the cyclists themselves feel about data in their sport? having everything measured and tracked can have its downside. of course a lot of teams are trying to keep it a secret. when you're racing to win the tour de france you don't really want to give your competitors that advantage. people say it's turning into f1, it's just robots talking to robots. what do you say to those people? it's more than that, you know? a robot doesn't have to put the effort in. biometric data isn't actually transmitted live,

but that isn't because of technical limitations. the data ownership between the rider, the teams, the race owners is still quite complex. so at the moment, the data we have permission to collect and publish is positioning data which tells us stories about speed, gradient and position. it is possible to take biometric data and we have actually piloted that at the tour of california a couple of years ago and also in a stadium environment. but for the teams, it's very sensitive because biometric data also gives great competitive insight into how hard that rider is working to perform the way they are doing. as well as sponsoring their own team, dimension data is the technology company behind all the data collected for the tour de france. their technology has managed to overcome problems unique to this epic race. they've been studying this tracking system for 15 years, 20 years. the big thing we have to deal with is we are in the middle of nowhere, in the middle

of the mountain, the weather condition can be terrific sometimes. so this is the main thing, to be able, logistically speaking, to track every day and give information in real—time. that is the most complicated thing. from data centre to road race, there is 20 kilometres to go, 20 kilometre wind speeds. the final‘s coming up. that was cat hawkins, reporting from the tour de france. now, i can guarantee you none of those riders had a bike frame anything like this. not only is this incredibly light, just 600 grams, but it's loaded with technology. and it's being developed here in rural england, just by the duckpond. yep, just past the hartney whitney village green in a converted cow barn, an ex—rolls—royce aerodynamicist has designed this

revolutionary new frame. stuart abbott has embedded sensors inside it which sends live data into the cloud to be analysed by cycling teams or casual cyclists alike. an accelerometer in the rear chain stay here. also, temperature, pressure and humidity. the frame is made in a mould like this from many layers of this carbon composite. but on one layer of the composite, they print the circuitry for the sensors and the conductive pathways which sends the data around the frame. all of this is made from graphene. we have connected the sensors using graphene—printed circuitry. i know the temperature, the humidity, the air pressure, the amount of watts you're pushing. i know how much you're deforming the frame, i know the headwind, the tailwind. and by pulling all of that together, i can say you should stop. and in the future you want

to exploit other properties of graphene to do something pretty incredible to this frame? yeah, we want to actually be able to change the shape of the frame dynamically, based upon the environmental conditions that are there at the time. so while you are riding, your bike could change shape? while you're riding... it won't be as much as 0ptimus prime or that kind of thing, but while you're riding, you may well have positioned intelligent materials over the frame that cause it to change shape to improve the aerodynamic efficiency. i tell you, the idea of pedalling hard in this heatwave, not for me. but of course, for many, working for hours on end in the baking sun isjust par for the course, and that includes the australian wildlife services. now, at the moment, they're working to protect a very special part of the great barrier reef. nick kwek has been to meet the rangers who are really working up a sweat.

raine island, the great barrier reef. nesting ground to the world's largest collection of green turtles. each year, 60,000 of these endangered creatures migrate here to give birth. but their population is in decline. so the wildlife services at the great barrier reef foundation have upped their game. it's about intervening. we're actually actively going in and doing things at raine island, we're moving sand around with machines, rescuing turtles, we're putting up fences. we are using and embracing technology and that is a big mind shift from how parks have been managed in the past. raine island is unique in that it has a torres strait islander traditional owner group and an aboriginal mainland traditional group. forjimmy and peter, their connection with raine island stretches far into their ancestral past. it is best for us to get involved using the technology, so we can help the parks and wildlife rangers. turtles need, you know,

good conditions. the whole world needs that, you know? to look after this place that we call home, you know? to get to raine island, it's quite a mission. it takes our boat, which does 18 knots, about 2k hours straight from cairns. very remote island. 16 of us go over, we sleep on the boat during the day generally, and do all our turtle work at night, 12—hour shifts at least. the island is so remote the team can only visit a few times per year. we satellite tag turtles. it's got very good gps data. we can look at how often the turtle comes up, how long she spends on the beach at night, whether she comes back up the next night. so we know whether she nested successfully so we can track over the whole season how many attempts she made too lay, and how many times she laid successfully, which is really important information for us.

tina's team also do a visual count, including a good old bucket of paint and a clicker. we paint them, they go back out to sea, the next few days we do what's called a painted turtle count. it is a manual process that takes ages from the back of the boat. the last two seasons we have trialled using a drone. it takes 15 minutes or so to do. beautiful shots as well. the snapshots captured from the drone makes counting much faster and more reliable. the eye in the sky is helping monitor rare seabirds more effectively as well. anything that helps us monitor raine island when we are not there is great. we use remote cameras for that now. they've installed a broadband network to beam the pictures back to base. so i can sit in my computer in the office and log on to raine island and see how many

turtles are coming in of a night. 90% of the northern great barrier reef‘s green turtles nest at raine. if that population collapses, that's most of the turtles in the northern great barrier reef, and torres strait, around to the gulf, vanuatu, the solomon islands. so our turtles are not just our turtles at raine, they migrate all around the northern region. so the whole population collapsing would have massive impacts on those committees. and these native communities are doing what they can to help. today they're getting their boating licence, training from the parks and wildlife service. we have for us to be out here because of our history we have with raine island, trading wise, our ancestors used to go all over. we have that connection now today to raine island. we have that history, and songs. they use the ipads, we have a turtle database and all the turtle monitoring is done on.

they also get involved with helping out with the drone work and the surveying. it would be good to learn a lot more, eh? because we're living in a modern world, we've got to keep up. not too many old people left. we're the next ones in line, so we've got to learn as much as we can so we can pass it down to our kids and their kids can pass it down to their kids. indigenous and non—indigenous, we all have to work together. i am truly privileged to have this job and get to go to raine island, which is an incredibly unique place. and, yeah, it does bring a bit of a tear to your eye when you see your first turtle laying her first clutch of eggs in front of you, or a turtle that you rescued. it gives you a nice, fuzzy feeling. how brilliant is that? that was nick kwek in australia. that's it from us for this week.

don't forget, you can follow us on twitter and on facebook as well, where you'll find loads of extra tech news and behind—the—scenes photos throughout the week. thanks for watching, and we'll see you soon. hello there. temperatures over the last few days have been topping out around the middle—20s celsius. warm enough, you might think. but for some over the next few days, we'll have values up into the 30s. increasingly warm and humid through the day ahead. some sunshine, but also a fair amount of cloud in places, because, as you can see from the earlier satellite picture, we've got this pipeline of cloud just ploughing its way in across the british isles. and western areas particularly, where you're exposed to that moist south—westerly flow, seeing a lot of cloud to start off thursday. some rather misty, murky conditions for some coasts and hills.

bit drizzly in places, the odd shower here and there. but for north—east scotland, and certainly for a good part of england and the south—east of wales, we start the day with some sunshine, and these areas will keep sunshine through the day. and, in some other spots, the cloud will tend to break up. the most favoured spots for sunny skies, though, in shelter to the north—east of high ground. so the north—east of scotland doing quite nicely for sunshine. 2a degrees there in aberdeen, but with some extra cloud in glasgow more like 21, and we could well see some showery rain just drifting across northern ireland. some extra cloud into coastal parts of england and wales, certainly in the west. but further east, more in the way of sunshine, and those temperatures in london up to 29, maybe somewhere in the south—east getting up to 30 degrees. now, as we go through thursday night, still quite a humid feel. still a lot of cloud as well ploughing its way in from the south—west. some outbreaks of showery rain starting to develop across parts of northern england and southern scotland as the night wears on,

temperatures not dropping far at all, 15 to 18 degrees in many places. so starting friday on a muggy note for most places. what we have is this cold frontjust trying to drift its way southwards. not a lot of progress, though, and along the front, a little bit of rain. but what the front mainly does is it divides northern areas, where there'll be some relatively cool air, from southern areas, where we'll be tapping into this increasingly hot air from the near continent. so quite a split in temperatures emerging as we go through friday. here's our frontal system only very slowly moving southwards. rain particularly across northern england, much of it light and patchy, the odd heavy burst. to the north, across scotland and northern ireland, a mixture of sunshine and showers, and temperatures around the low 20s. down towards the south—east, lots of sunshine, and temperatures up to 32 or 33 degrees. and we keep that split in fortunes as we go through the weekend. low 20s likely in northern and western areas, with a fair amount of cloud. bit of rain at times, but not all the time. further south and east holding onto lots of sunshine. 30 degrees on saturday, maybe a little bit cooler on sunday, but not by much.

welcome to bbc news, broadcasting to viewers in north america and around the globe. our top stories: deadly gunfire from soldiers in zimbabwe, as opposition supporters protest, claiming monday's elections were rigged. it's changed dramatically, the atmosphere, in the last 2a hours — really volatile now. we've had tear gas fired, shots fired. i think we've got to go. the us sanctions two government ministers in turkey over the imprisonment of an american pastor on terrorism charges. cocaine production is surging again in colombia. we are there as police raid a drugs lab in thejungle. and a spectacular robbery in sweden. and in paris, a new booking system