two men have been arrested after 4 police officers were injured in north london last night. two male officers were stabbed, and two female officers were hurt after responding to reports of fighting in islington. one of the officers is still being treated for stab wounds in hospital. a search is continuing for a kayaker who went missing during a race off the dorset coast. 60—year—old alistair collier from worcester was last seen around midday yesterday near the start of the course. 15 competitors were taking part in the event from knoll beach to swanage. coastguards said organisers raised the alarm when he did not complete the race. further south, after yesterday's

cold, wet and windy weather, barely 8 degrees for some of us whether rain persisted, it will be warmer. despite the frost first thing, temperatures will recover to between 12 and 16 celsius this afternoon, which is considerably higher than yesterday, even where we have got rain. rain hangs around across scotla nd rain. rain hangs around across scotland and northern ireland for the next few days. elsewhere it will start to feel much warmer with morning mist and fog however. hello. this is bbc news. the headlines: victory for president trump as brett kavanaugh is sworn onto the supreme court after weeks of debate over sexual abuse allegations. republicans believe in the rule of law, not the role of the mob. ahead of the snp party conference,

nicola sturgeon says the party would vote for a second eu referendum if it's proposed in parliament. a second customer is believed to have died from an allergic reaction to a product bought from pret a manger, the chain says. it says the customer died in 2017. click. this week we are feeling the love while the robots do the work. and i'd better start packing for the moon. you want to go? is that really right? if we want to take a quick

snap these days, we tend to use one of these. but if you're serious about those photos, then this is still the camera of choice - the dslr. of course, it's notjust the camera itself that's bigger. the sensor used to capture the image is also larger, providing the professional standard known as full frame, which is the equivalent in size to the old 35mm film. the mobile phone had clearly ta ken its toll on the compact camera, but the dslr had remained largely untouched until the last couple of years, when a new system, called mirrorless, started to gain traction and respect. digital single lens reflex cameras use a mirror system to bounce

the light coming through the lens up to the viewfinder, so you can see what you're shooting. but that has a few drawbacks. when you do take the shot, the whole mirror system has to flip away to reveal the sensor — that's noisy and can cause vibration. so enter mirrorless. now the light hits the sensor directly, which also handles autofocus and exposure. and, in doing so, it's also able to offer other features, like face or eye detection. the newer full frame mirrorless cameras house larger sensors, capturing more light for a better picture. to do all of this, the viewfinder is no longer optical. it's a tiny electronic screen with a live feed from the sensor, which initially put

off some professionals. but is this the moment that the dslr has finally met its match? dan simmons has been to the world's biggest photo expo, photokina, in germany, to find out. photography isn't about cameras. it's about taking great pictures. but the introduction from heavyweights nikon and canon in the mirrorless full frame market is turning the heads of pros as well as enthusiasts. i am an extreme sports photographer and i had the chance for about two months to test the new eosr. this is canon's new system. on sale from tuesday, it will work with existing eos lenses and offers several big advantages over dslr. this new camera enables me to shoot scenarios that i couldn't shoot before. for instance, if i get really close to an athlete,

he is in his zen mode where he prepares for a stunt, and it's quite critical. if i disturb him too much, he might lose his stunt and i might lose my picture. but eosr, i can put into silent mode and then it is really completely silent. it's like there is no noise at all. the only way you can understand that there is a picture being taken is a little flash around the viewfinder. i was sceptical about electronic viewfinder. i was scared about how to work with that. but when the light drops it is a whole new ball game. it is like putting on nightvision goggles because you actually see more with this camera then you can see with your eyesight. you can shoot images and you can create compositions that i could never have done before. canon fans have been waiting for this new system waiting for this new system for some time now. they watched sony introduce the world's first mirrorless model back in 2013. so why has it taken canon so long to catch up? well, you know, we come from a digital slr big leadership. we have to ensure that we offer

people what they want. they wanted this full frame mirrorless camera two years ago, that's when they wanted it. i don't know when they wanted it, but we believe this is the right time. sony have been out for five years with a camera similar this. it was a growing market. are you saying it wasn't worth putting it out earlier? it was maybe worth it, maybe not. were you ready to put it out earlier? we are ready today, clearly. but were you ready before? this is canon. if we come up with something, it must be the best. the best in mirrorless is understandably a bone of contention. so before i tell you why it might not be, let me tell you four good reasons why that might be the best. canon claim the fastest autofocus,

at one hundredth of a second. more autofocus points than any other system — more than 5000, if you need them. and the ability to autofocus in darker situations than any other camera in the world — minus 6 ev if you're interested. for the hard—core, they have a new zoom that is f2 throughout the range. but is the eosr the best? nikon hasn't updated its famous camera lens f—mount system since it was introduced in 1959 — until last week, when it too went mirrorless. the new full frame z6 and z7 models are slimmer and lighter. an adapter allows them to work with existing nikon lenses, and they sport a visible wider z—mount, allowing more light to hit the sensor. the idea is to create

lenses which are as sharp and perform at wider aperture. the new z—mount from nikon is more than 1000 times faster than the traditional f—mount. that is the speed the camera talks to the lens, and then the lens can then respond. exactly. to be honest, we are actually not using the speed yet, but that is looking forward. i don't know what we're talking about — in five years to ten years — when you might have different applications. why could that be useful? basically everything has to be connected to artificial intelligence, augmented reality applications, whatever. i don't yet know what the future holds. i would be a rich man if i did. is there any reason why we should keep dslrs in the future? definitely. dslr are still the ones that have, let's say, the longest battery life. sometimes you actually need the sturdiness and the weight. the mirrorless cameras will come there eventually. back in march, i first saw the camera, first handled it, and then, along the way,

you're getting it before the rest of the world knows. it is all very exciting. rob whitworth specialises in what he calls flow motion films. while on location, he had to keep nikon's camera a secret with his granny‘s specially knitted cosies. so what does he think? for a lot of the filming, it's in a gimble, or there is no way to operate the focus, so you are relying on autofocus. the example in the video was shooting our talent using a 105 millimetre lens at f1.4, so a tiny depth of field. and it nailed it — reliably and from multiple takes. that is very exciting. this is the first time that i would rely on this feature with nikon cameras. japan has upset many pro—shooters when it comes to memory slots. both the canon and nikon offer one memory card slot,

which does not allow pros to backup on the move. i asked nikon's head of marketing what the deal was, and he said they recognised the problem and were looking to add a second slot in future models. in fairly low light conditions, i took out the z7 and sony's equivalent, the a73, and they both did a decentjob. that's no surprise, as sony invented the full frame mirrorless six years ago. sony cost less than the canon and nikon, and many say it outperforms the dslrs — especially in video. now, all these cameras shoot in ak but sony has had the time to perfect that. and they provide two memory slots. they have developed eye recognition for reliable autofocus, and now animal recognition. but even as the clear market leader in full frame mirrorless cameras, i found out there's a lot more to come from sony. elsewhere, panasonic announced

its full frame mirrorless system, on sale early next year. its lumix brand will partner up with leica and sigma to offer a complete system. eventually it is likely mirrorless will kill off dslr. but remember it is probably what what you shoot that makes the biggest difference. it may not be the nicest lens or have superfast autofocus, but it is mirrorless. hello and welcome to the week in tech.

it was the week that elon musk was forced to step down as the chairman of tesla. kim kardashian was named as the most dangerous celebrity to search for online. and the irish data protection commission launched a formal investigation into facebook‘s recent data breach, which affected over 15 million accounts worldwide. it was also the week that microsoft showed off new surface products. and amazon said it would raise wages in the uk and usa. it will affect tens of thousands of employees in the uk, and follows criticism of the company's low wages and complaints over their warehouse working conditions. and japan's advanced industrial science and technology institute has developed a robot that could make diy a thing of the past. staying injapan, researchers at the university of tokyo created the world's strongest indoor magnetic field, promptly blowing up their own lab. none of the team emerged

as magnetically powered superheroes after the incident, though. finally, they may be famous for their wholesome image, but even disney can't resist the occasional bit of graffiti. disney research and eth zurich have partnered in the creation of a graffiti drone, or, as they call it, the paintcopter. it uses a spraypaint gun and cameras to detect what it is looking at, and researchers hope it could replace scaffolders and ladders on large—scale painting projects. but it may need more practice first. in a warehouse in silicon valley, what might be the future of farming — a farm that is indoors, autonomous and apparently incredibly productive compared to traditional methods. the man behind it believes he is working on technology that is essential if farming families like his are to thrive for generations to come.

i grew up in texas and oklahoma. we had a few thousand acres over there. even there, we have the issue of my grandad cannot get enough help. and none of his daughters took it up, so, luckily i guess i am. it is also the cleanest farm you've ever seen. in fact, it's more like a food lab, which is why i need to look like this before i can go in. now i've got my best look on, let's check out the farm. the first thing i can see is this enormous great machine. tell me about this. this is angus, this is our 1000—pound mobile robot. angus. angus can autonomously navigate our farm. angus patrols the floor. he is omnidirectional and self driving and knows where he's going thanks to these markers up on the ceiling. he brings the modules which are filled with water over to the second robot in the room. the arm is used to harvest,

which in this farm means moving the produce from one container to the next to help it have more room to grow. there are lots of technical challenges to overcome here. the arm must pick up each plant but do so delicately, and not damage the other plants in the process. once the harvesting is complete, angus moves it into the light. so just give me a sense of what different food this can grow. these are some of the baby plants. we have some butterhead, red romaine, some really tiny baby red bean sorrel. this is the only iron 0x farm so far and it doubles as the company's offices. their business is relying on the fact that not only is their farm supposedly more efficient, but the food itself is more consistent,

and of course it needs to taste great. genovese basil, what i recommend is tearing it in half first, and smelling it. oh yeah. yeah, right? that is really nice. very, very good. that was dave. now watching this now, you have absolutely no idea what i'm going to say or do next, let alone the ability to control it. but nick wek has been to see some technology that could change that. i've been invited to york's inaugural mediale arts festival to see an interactive film called "what is love?" and i hope to find the answer.

wish me luck. here, the audience is invited to not only view but shape the narrative of a love story. they affect what happens as the video itself changes to complement the viewer's individual responses. how am i feeling today? every so often, floating icons are projected in space in front of the screen, subtly encouraging onlookers to reach out and virtually guide the mood of the production. well, that's the idea anyway. took me a while because we had to interact and do stuff, and i didn't understand. i was trying to interact but we couldn't make it work, so we just went along with the flow. it was great, it was different. a leapmotion sensor tracks hand movements and depending on where and when you intervene, different pre—recorded scenes play out. the installation uses a storytelling medium known as 0bject based media. and this is billed as the first public airing

of the tailor—made tech. basically 0bject based media gives people options. if you like to mix it up and change the camera angle, you can play director. if the character or presenter is simply rabbiting on too much and you want to skip to the next part, then you can simply... or if you have started watching something after the watershed, it can automatically show you stuff a little more adult friendly. a new piece of editing software had to be created to produce the experience. we spent about a year developing some underlying technology. these three groups are all different dialogue choices, and based on the decision that the viewer makes, it'll go down one of these paths and then it will select from these possibilities. as a director it's very interesting because it is a far more exciting challenge to put a story together like this.

because you allow the user to interact and change it depending on what they want out of that piece. and then they will get out of it what they have put into it. that's exactly what broadcasters are working on. netflix is set to broadcast a choose—your—own—dystopian—future episode of black mirror later this year among other interactive experiments. bbc r&d, who helped develop the york installation, have been working on similar projects for a couple of years now. this is our origami frog make—along. if you want to see a different view, maybe you need to see it top—down to get the fold right, you can switch to top down and there's an even closer—up view of his hands. matt and his team have concocted personalised tutorials, weather updates and even some dummy news packages. 0bm for news is quite interesting. we have got that in—depth analytics in the content that you might expect from multi—player video games. we know where people are losing track or failing or repeating stuff.

and obviously with that object—based approach you could go back and tweak it. but of course if we over—personalise we could be in danger of the filter bubble effect, of only showing people opinions they already agree with. and also if you flip that idea, maybe we can introduce counterexamples to people. i don't know if it is the opposite of personalisation, but introducing things to their media that provide an opposite point of view to try and make sure we don'tjust reinforce everyone‘s views. but is 0bm ready for prime time, and are audiences up for it? dr smith foresees an 0bm future where artificial intelligence might know what we want and help guide our viewing. if you imagine it kind of like google maps where instead of taking the fastest route from a to b, you get the most interesting route from a to b. and that is where i think the logical form of the artificial

intelligence will take, but the director will be providing the map. we will soon see if that map is worth the expedition. that was nick. and apologies, you can't choose who you do or don't watch quite so easily right now, or what they are wearing. this is the zozo suit and generally you would be wearing it in the privacy of your own home. the aim is that it helps create 3d measurements of you so you can order custom—made clothes online. around 400 unique markers are tracked by the phone's app. the company behind the suit, zoonown, although you may never have heard of it, is the biggest online fashion retailer in japan. a business which turned its founder, yusaku maezawa, from a drummer in a band into a billionaire. but he may be feeling a little distracted right now, as he has bought the first tickets

for elon musk‘s 2023 spacex mission to the moon. he doesn't want to travel into space alone though. i met up with the avid art collector at the louis vuitton foundation in paris where his $110 million basquiat painting is currently on show. ever since i was a kid, i have loved the moon very much. after hearing about spacex, at what point did you start to think, "yes, i actually want to go and do this"? yusaku wants to bring artists along with him, at his expense,

to see how their experience inspires their work. maybe it will be a musician, a painter, a dancer, a film director, i don't know yet. so right now there are still a lot of things in question, a lot needs to be developed. how likely do you think it is that this is going to go ahead? do you trust elon musk?

you know him. do you like him? are you friends? would you like him to come? he is crazy, like me. is he crazy enough to want to go to the moon? i am very honoured to do that. what do you hope that you may come back thinking, feeling, or having learned? how much does a ticket to the moon cost? i cannot say about that.

but huge. hundreds of millions? you're not allowed to say. thank you very much. and safe journey. thank you. you want to go? really? i'm i wasn't expecting an invite! that's it for this week's show. you can keep track of what we are up to on facebook and twitter at @bbcclick, and of course we will be back next week. hello.

despite the chilly start, we enjoyed a beautiful sunrise in many parts of the uk this morning. since then, the clouds been piling in across scotland and northern ireland. a very different complexion to the weather today with this weather front bringing rain and strong winds. that has cleared away from the south yesterday, so more sunshine across england and wales. this is how the rainfall looked earlier in the day. a broad band of rain with lots of cloud and strengthening winds. not much rain east of the grampians or the eastern side of northern ireland. but greyer than yesterday and windier. winds gusting to a0 or 50 mph quite widely. perhaps higher in the extremes around the coast and over the hills. further south, a much brighter day compared with yesterday. sunshine, fairweather cloud building.

towards the end of the day, perhaps some rain and cloud coming into cumbria and lancashire. in contrast to yesterday when it was barely 8 degrees through southern parts of england, it's 1a to 16 today. even fairly warm with the rain further north. the rain hangs around. this weather front gets stuck across the northern half of the country. a met office yellow warning, a low—level warning. for the next two or three days we could have as much as 200 millimetres of rain falling over the hills. more likely 100 to 150 but that's a lot of rain. that will feed into the river system. a wet spell of weather but mild because it's driven by south—westerly winds. once we clear the morning mist and fog in the south, it looks like warm and pleasant weather will be enjoyed by many parts of england and wales. 0vernight, because we keep the south—westerly flow, there is a wind around, but it shouldn't get that chilly. a little bit of ground frost

in rural areas but temperatures will vary little from day to night. further south with the wind more mist and fog. at this time of year the fog tends to linger through the rush hour. because of this mild south—westerly wind, more moisture hence the mist and fog risk. but temperatures by day are set to rise above where they should be. it will feel much warmer for most, even with the rain. been good afternoon. president trump has welcomed what he's called an "historic" decision by the us senate — to confirm his nominee brett kavanaugh, to the supreme court. justice kavanaugh has faced a series of allegations of sexual abuse, which he'd strongly denied. his lifetime appointment, approved by 50 votes to a8, is set to take america's highest court down a more conservative path. from washington, barbara plett—usher reports. # i'm proud to be american...# it's been a great week for donald trump. the economy's looking good, the supreme court, even better.

i stand before you today on the heels