Fifty Shades of Spray Click

This week, wall climbing graffiti bots. All aboard the holodeck. And

just watch out for the rodents. Oh, there is a mouth! -- mouse!

Data is all around us. We generate around 2.5 billion GB of it every

day. Think of it as, well, there is no other word for it, really.

Enormous. And we are finding lots of new ways of gathering even more of

it. Machines are now able to look at videos and interpret what is in the

image, and with the number of CCTV cameras around the town, imagine how

much more data we can collect. But the real intelligence is not in

capturing the data. It is in analysing it. And this is where

artificial intelligence might make a real difference, making connections

that we humans never would. Big data has accelerated our understanding of

medical science in unimaginable ways. It is now influencing how

hospitals treat patients, police forces manage crime, and city

officials run our towns. And it is inevitable, in the next 50 years,

that AI will play an even bigger role in our society, and influence

how we go about living. I recently met DJ Patil, President Barack

Obama's chief data scientist, who was in charge of shaping how big

data is used by the government to make big policy decisions, while

ensuring the AIA created by the tech companies treat everyone fairly and

make good decisions. That is where we have to start focusing more about

energy, is asking the question of how do we actually make sure that

these algorithms are going to work the way we want? People talk about

self driving cars. It is a self driving car going to see someone

with my skin tone, or someone with a darker skin tone? A person with a

wheelchair? Is that a person in the dataset? How do start saying... You

are suggesting whether a self driving car would recognise you as

something it should avoid. Yes, Boyd, because we have different skin

colour. Are people with your skin colour the only ones in the data

set, am I ignored? Is that an accident? But what about somebody

with a handicap? What about a kid on a tricycle? It is not sufficient to

say oops about the algorithm. We have to figure out a more robust

process as these things are becoming more integrated into our society.

And if we have learned anything from this week's Facebook story, it is

that tech companies are not the most transparent lunch. Facebook has been

around for more than a decade, and only now, by chance, have we got a

glimpse of how its moderators decide what we see on its platform. So how

do we make sure the AI built by the same tech companies are using our

data responsibly? So the first, it comes down to how are you trained?

In our training these days, we often have found that technologists are no

longer trained in humanities. One of the most critical components of

humanities is the notion of ethics, so what we have called for is that

every data scientist, every economist, anybody who works with

data, must have ethics integrated throughout their entire curriculum.

So you can start to have the conversation and dialogue about what

are the ethical implications of the choices you make second part of this

is how about security of the data? How do you make sure that you are

actually building the algorithms with security, the datasets with the

purity so people can't just break in. That has to no longer be elected

or something outside. That has to be part of the core training. Once you

have this component of our training, I think you are going to have a new

set of people who have the vocabulary to talk about it. But

that doesn't take into account the speed at which it is happening on

taking place today. So what we do then? Number one, transparency.

President Obama signed an executive order that said by default all data

the Federal Government on the US Federal Government, publishers, must

be open and machine-readable. And what that allows people to do is be

able to access the data, preparing, use it, and innovate with it --

compare it. And that is the problem, how do we strike the balance? We

need to know that a AI system is not biased as loan from a dataset which

includes all of us, and its decisions are fair, but we also

don't want to stifle its process will make progress, because when it

is used in the right way it really can change things for the better.

What we have found in one of the problems around a local jail system

is that there is a huge number of people who are just cycling in and

out of the system. I mean, the numbers are extraordinary. More than

11 million people through 3100 jails, they stay there on average 23

days. 95% never go to long-term prison. It turns out there are a lot

of mental health issues, a lot of drug addiction. So what happens to

those people? Where is the data going? It stays in silos. The

healthcare system has a silo, criminal justice. So what happens if

you just talk and share that information? Is said do you see

Sally and data set and say we saw Sally all the time? Well, why are we

sending her to jail, let's send her to the right intervention. So doing

that, how much can you save? What is the real impact? It costs 1.5

million to train of Ron on the right intervention and share the data, and

everything. The first year alone they saved more than $10 million,

but more importantly they were able to close a full jail. And later on

they close second jail because they are giving people the right care.

It was the week that Volvo announced it's working on an AI rubbish truck

that will follow collectors from house to house.

IKEA said they will release smart light bulbs that can be controlled

by voice and sync up with home devices like Alexa

And Google fancied another "go" at Go success.

The AI system AlphaGo took on the world's number

one Go player Ke Jie, and won the series.

AlphaGo learned to play by studying old matches and playing thousands

The hope now is it will be used in medicine and science in the future.

More bad news for Uber this week, as it admitted it underpaid drivers

in New York for more than two and a half years.

Tens of thousands of drivers will now be paid about $900 each,

which will mean Uber paying out tens of millions of dollars.

And only one month into the release of Samsung's new Galaxy S8

smartphone virus scanner, and it's already been hacked.

German hackers fooled the scanner with only a paper printer

and a contact lens to make the fake eye.

And is RoboCop from the '80s becoming a reality?

Well, not quite, but Dubai police want these robots to make up 25%

They launched the unit on Wednesday, which can forward video

feeds to the police, settle fines, has facial

recognition, and can speak nine languages.

Graffiti art has been one of the hottest art movements over

Like many graffiti artists, Graeme - or Xenz, the name he goes by -

In this case, the streets of Bristol.

And he has since grown into the artist that we see on the roof

Today, he's taking a break to do this for us.

But he's more known these days for these amazing natural scenes

which are exhibited and sold all over the world,

and which incorporate all of the graffiti techniques that

Yeah, over time you really understand what the can

You know, you come to rely on these tools, like the nozzle

Like the way that I use the edge there to keep one edge

sharp and one edge faded, then this, you know,

So there's a lot of disciplines that go through painting that

No, we don't have that kind of patience.

So could we pull off something similar to this by combining

technology with someone who has no creative talent whatsoever?

To find out, we sent Nick Kwek to Estonia...

Tartu, Estonia's second-largest city.

Like most cities, graffiti and street art provoke

It's also home to one of the biggest spray-painted pieces

But Albert's been painted dot by dot, and I've been promised I too

can achieve artistic genius with the right tools.

Believe it or not, these pictures have all been

They've been pieced together splodge by splodge

My daughter wanted a unicorn on her wall, but I couldn't draw.

So that pushed me towards creating this device.

To make these magical masterpieces you need the right kit -

a smartphone with the appropriate app installed, an external battery

pack to keep it fully juiced, a tripod to hold it steady,

some paint, and of course the SprayPrinter.

First you select an image and align it against

So the image is projected like a giant virtual sticker.

The phone's camera exposes for the LED on the device,

and when it illuminates it sends the can's location to the app.

The phone then tells the printer its coordinates

and the printer decides when to spray and when not to.

Once you get the knack of it, it's actually surprisingly simple to use.

You just have to make sure you go from left to right, or right to

left, very smoothly, in a straight line.

For all its geeky brilliance, it's a real labour of love.

Even the most simple of designs takes several

Depending on how complex the picture,

and the size, the amount of

layers, the different colours you want to paint with,

you know, that determines how long doing one of

You need to move your hand relatively

steady, so if you start moving your hand very

Not sure I could really stand your for

With the next model, you should be able to

move your hand relatively freely as you would with

rest, the team have already started developing robotic

versions to do the spraying for them, meaning larger more complex

I developed this extra accessory for the SprayPrinter to

atomise the process, because for high scale

images the hand-held method takes too much time and

too, hopefully speeding things up a bit.

But does the printer help artistic expression, or

gives like guidelines of how to paint.

It's like sort of a colouring book, but

you can go over the lines, but the paint

will still only land in the

I think for people like myself, we call them

LAUGHTER And I think this device gives them

It started off only a few small dots.

You actually have to stand back a few feet to get the

full view, to get the right perspective on it.

So what would you like to see spray-painted next?

Well, the guys have been holding a competition

and this winning submission, just announced, will soon be painted on

a local giant abandoned power station

chimney for all to see, but painting on this

curved structure has posed new

problems, which Mihkel is determined to solve.

I thought it would be a good idea to use a vacuum

Rover, so this is just a four wheeled platform that drives across

It attaches to the wall using vacuum.

Yeah, and in true Blue Peter fashion, here's one I made

Well, that was Nick Kwek with the SprayPrinter.

It helps us to get these large images

up easier but no, I think I'm quite comfortable

It definitely has its advantages, for

Well, in the meantime, this is beautiful.

Thanks so much for doing this for us.

We're going to stay on and art tip now.

Here at Photo London art takes many forms.

But the thing I've seen that I've grappled with the

most is the idea of a virtual reality gallery.

Is this really a way to fully experience art?

So what's going on in here, and in here?

Well, in the 1800s when people saw photography for the first time they

were absolutely wowed by it, but of course now

So what's happening is some of those initial images are being

brought back to life in virtual reality.

original original photographic images were shown has been recreated

Well, initially I wasn't sure that looking at these images in

virtual reality seemed like something that actually makes

sense, but apparently you can pick up the

images by holding your hand over it like that,

and then you can hold the image in your hand...

You can really see the texture of it as well.

This genuinely feels like I'm standing in

In fact, it actually feels quite hazardous

because you can see smoke coming off it and that is proper serious heat.

But whilst the juxtaposition between the origins of photography

and a new visual medium are deliberate, making sure it

provides a meaningful experience for those with a yearning for art

Nothing fills me with a greater melancholy than going

into an exhibition and seeing somebody with a virtual reality

headset on, and having to queue and wait for your turn on it -

So what I've tried to do in this installation is to make that part

of the actual experience, so when you're not in the room

you can look at people with their headsets

Watching the goings-on of people wandering around is quite strange

and surreal to look at, so hopefully it's still interesting

as an artwork even when you're not in the headset.

So I can hear some sound coming from over here.

That's because of the binaural sound that's built in,

and there seems to be something happening outside...

I believe this is the Chartists' revolt.

This is a lot of people objecting to photography.

This wasn't the only VR at the show, though.

One family of art collectors wanted to virtually take

You can have your art museum in your pocket.

I can have 200 metre museum just in my laptop.

That could be sharing a collection internationally, a trip to a

virtual art gallery for those who are housebound, or

introducing a new audience to art who might be more

The real-life version of this statue is

I will head towards it and have a closer look.

I can actually see the size of it by those

And in fact the size of that piece of art behind

it, the scale of all of this, is absolutely massive.

It would require such a large building to actually

Amidst the physical art were the latest

imaging, entire film is superimposed on

single images, and this Paris park scene.

So behind this photograph we are looking at here is actually a

massive plate of LED lights, all spread out with an inch between

them, so each time you can see a person crossing the screen it's

actually a combination of these lights being dimmed in that pattern,

and what the human eye fills an in between to make it

One thing that seemed clear by the end of the day,

though, was that VR can feel a natural part of an art show, and

that I'm never going to be an art expert.

One of the brilliant things about working

ambitions at one point or another, which is why

this week Mark Cieslak became the captain of a starship!

He took some of the rest of the Click family

with him, to boldly go where no Mark has gone before.

These are the virtual voyages of the BBC Click

Our mission: To wear VR headsets and discover strange, new

technology, and boldly go where no TV reporter has gone before.

Virtual reality game Star Trek Bridge Crew

brings together up to four players, each

taking a different role on the

The beauty of going where no one has gone before

is that starship travel involves an awful lot of sitting down.

Sitting down is great for virtual reality

because the headsets have got these cables.

If you're moving around it easy to get caught up with them.

And where better to be sitting in the

Captain's chair of a Federation starship?

Headsets on, it's time for the Click team to become a starship

The early missions are all about orientating us with the bridge

As helmsman, you are the ship's navigator.

The headset shows us what the bridge looks like, but the

PlayStation motion controllers allow us to interact with the various

controls we have to master in order to fly the ship.

We don't have time for sight seeing, though, as we receive

a distress signal from a stricken vessel.

My vessel has lost all power and our life-support systems are

Can you transport the survivors to here?

CHUCKLES That wasn't in the training.

LAUGHTER We're homing in at an alarming rate,

There are no options within transporter.

It's at this moment that the action takes

a turn which will appeal to Star Trek superfans.

OK, guys, this is the Kobayashi Maru scenario.

This is an impossible to win situation.

Bring us about so we can actually see that

Line up the phasers, and torpedoes away.

Yeah, everybody, we just violated a peace treaty.

It's pretty warm work being in virtual reality.

It feels like it's social VR at its best, really.

If you don't have it you're not going to complete the mission.

I thought we actually had our lives on the

That ably demonstrates the power of teamwork.

It's really, really important that everybody plays their role on the

bridge, because if you don't then chaos ensues.

We had a couple of sticky moments there, but I think we

managed to pull it back and keep it together as a crew.

And the result was a successful mission.

Or like us on Facebook, too, where you can see

Now, while you're watching this we are doing a live show at the Hay

And next week on the programme you can see a

little bit of what we're getting up to.

And if you're coming, I hope you enjoy the

With a bank holiday weekend now upon us,

we are set to see a change in the hot, dry weather,

that has been with us for the past few days.

Here was the scene on Friday in Moray.

One of our Weather Watchers captured this.