take pictures from directly overhead. every 90 centimeters. it takes a high definition picture. the resulting photo jigsaw is then transformed by a computer into a 3 d model. even though the camera only takes overhead pictures of the buildings, they're still precise enough for scientists to gauge the pitch of the corrugated sheet roofs down to the last millimeter. it isn't void is could cite russell. this building shows what we can do stuff. if you had to map this roof accurately for a construction inspection, so you can take these measurements and monitor over the long term, how the building changes in how a deformed ng of upside. but we'll both be far enough to chicago to be fulfilled, to say that probably doesn't matter as far as this room goes, live alone. but when you're looking at the rail tracks for large cranes and or, and also for trains. and then you want to be certain they don't warm on shore deform with time. estes's finished for fall and that they don't ship with their position. dusty does. and if they do that, you notice it in time vol. would i cited a farm vinci's mission,

isn't later in the brown flying research institute, adina gets a new transmitter. it'll improve data transmission to the ground station. this kind of technology has progressed in leaps and bounds in recent years. don't uncommon, inefficient. uber had some minds us as captain maria and madeline. decent money or food bombing, morgan sticker on dumb dead, good food on her look as a sculptor of percept, few muscle and from border muscle and on fruit soil on of other specialist on the looker muscle. enough gland skies, human relative, couldn't. they can look on mr. script on a white other island woman to might be in this one for suitable kit summit. one off to spoon an increasing number of farmers. now scan their meadows with airborne infrared cameras before they caught hey, because when farms feel threatened, they ducked down and remained still. the airborne infrared camera picks up their body heat and the drone pilot can direct rescuers to the panic creatures. you know,

do you smoke? no missing from school nothings on hospice. fresh little thousands of fonts are sliced and ripped to bloodied shreds every year by combine harvesters. when it will take it over there were wide spread deployment of drones could save many young animals from a hideous fate. and this drone can shoot london's imperial college wants to use it to attach monitoring probes to trees. they'll collect data on the health of plants and remote forrest areas. drones are rapidly changing the things of research. they're cheap and versatile and brown, find technical university scientists are constantly updating their systems, giving these flying robots almost limitless potential. if i look,

let is read, why are they brought to my view? now it's your turn. do you have a question from the field of science? get in touch, send us a video text or voice message. if we answer it on the show, we'll send you a little surprise as a thank you. come on, just dance this week, terry buckhead from the us has asked us about clouds. why don't clouds fall out of the sky? there's water vapor everywhere in the air. that's water in its gas form. consequently, it's invisible to us. but when warm air, which is which in water vapor rises, it cools. and then the water it holds condenses out in the form of tiny water droplets, a kind of water dust. clouds began to form the water droplets or so tiny that warm air can lift them upwards. we can see this principle at work in everyday life by

watching a cup containing a very hot drink. as long as the droplets don't become bigger and heavier, the cloud will stay aloft. even though a cloud can weigh an enormous amount, the weight of a cloud can be determined using satellite technology. they're on board radar instruments can penetrate clouds to ascertain how much water each of them contains . a passing summer cloud can weigh several 100 times if conditions like temperature change and it develops into a thundercloud. it can grow to weigh millions of times because it's liquid water content increases as more condenses into droplets. the tiny droplets get swept around in the air currents colliding with others to grow in size. they also provide a surface for further condensation. whilst the small droplets continue to float, the larger ones begin to lose height. on their way down,

they collide with other droplets and a crete. correspondingly faster the droplets eventually reach a point where they are so heavy they fall to earth as precipitation. bottom line clouds do fall out of the sky, but only after their droplets are big enough to fall as snow hail or as rain drops . oh, what should be done with looted aunt from colonial era's debate that has intensified in recent years. but priceless artworks are not always sacred to oh wow . oh, sometimes there are people seeking to destroy them as 2001 in afghanistan in the valley of balmy on with the extreme as taliban group. so to decimate buddhist culture. but in japan stolen damaged or even destroyed artifacts can

now be given a 2nd chance at life. putting on the final touches hit a toll she. now mickey is using a paint made of lapis lazuli. similar to that used on the original, the 7th century mural was inside the balmy on caves and afghanistan destroyed by the taliban in 2001. this is a replica one. i had to go a couple day at all. i've got a funnel, a meta pick you got on this, kiddo mo hawkeye function. what purple tanya, they're doing on a brinko, they will know suitable to let me sorta go on all had you go to was did want to go of my son. calvin started with about to get on using records from the destroyed unesco world heritage site. japanese experts have created a stunning reproduction in japan. conservation is being taken to the next level at the heart of the capitals museum district and c of leading art institutions. tokyo

university of the arts is bringing together scientists and artists to rescue cultural heritage. in the lab, there are making stunningly realistic copies using high end technologies. this is one of the lamps masterpieces, a facsimile of a buddha statue, which is located in hor, uti temple, and nora. the actual national treasure has survived, but no unscathed elements were missing in the original, such as the hairs color or a circle of carved arrows around the figure's head. the laboratory has set itself the challenge of recreating the statue to look like it did back in the 7th century over. okay, so chris, i stayed up in with some decent with the old woman. she liked of them. so you know, for the, the general seals where the city sketch stuff. so most of the did the local and

me local. no, you will not see the deepening thoughts got up in gale faced up to see some looking kit got out and cut that don't use it. he said he would owns and all he said with the multi okay fo promoted it. i see sophia and another, you'll need to say stuckey look a bit to say it lets say seat oh could on with even though it started off as a computerized model. now artists are well on their way to recreating the form, as well as the texture of the artwork. here, a thin upper layer of clay is being carved by hand on this reproduction of a buddhist sculpture from the mogul cave. near done hong and china's far northwest leader still go went bowl, need you to put the yes they will unless you need to fight in the key deal,

we sort of will still go with us the to most people thought up all the muffet huckabee political to win give a little late to be on this day. the more they will love. stay the thing. it's got on one gamble, but when left more the full year, the political case tighten up, the artist and scientist must saki mosacco, leads the project which uses modern technology to super clone cultural heritage and take audiences back in time. oh wow. i love this clone is shining gold. well, same as when it was built, it should, there are more with it. then of course, this can be seen in book a record will going forward to know when you can, but i think it's very rare to find an actual reproduction like this similar to, for your call. the children don't lose hope because i've not been in this good all the missing parts. i have been replenished,

who actually was bit quoting model was not a problem with them. but i know what to do is this is one way to go beyond imitation by reproducing the wood carving 1st and filling in the missing parts. i've done the whole cups of the choice of stuff, the, the photograph to move these very special replicas are already displayed and certain exhibitions all over japan. but the method could have been global potential . the experts say it could resolve the thorny issue of looted art for some more credits or properties. how's the rent the abroad? and the collect, leaving the museums, so ordered, you know, keep country house, nothing in the cave. food park lawn coach property can give you the offer to choose, or is, you know, or cross cultural property. could art clone soon be feeling the world's museums. first, a major cultural difference will have to be branched. the japanese people link authenticity with craftsmanship rather than original substance. they're used to

rebuilding their cultural heritage because of natural disasters and their use of non permanent materials. the west seems to have a different understanding of authenticity. so more stories from the wonderful world of science and tech, find us on the web at d, w dot com slash science and on twitter, that's all from tomorrow to day. for now, we hope you'll join us again next week for another fascinating addition of our science show. until then, but by with ah, with

who she fantastic. mm. beautiful. and christine in the so called try a remote island off the horn of africa. an unusual part of human,

untouched by the civil war, discovered by just a few tourists. the forgotten paradise. a 30 minutes on d, w. o. o. to go b o l v a n. as we take on the world. we're all about the stories that matter to whatever table. nice men following dfw on fire made for mines on the green.

do you feel worried about the planet we to i'm neil. host of the on the grievance of ghost and to me it's clear we need to change the solutions or out the join me predict, dive into the green transformation for me to do with people and trucks injured one, trying to flee the city center more and more refugees are being turned away, order families on the reason for the credit on it is with people seeing extreme dreams. getting 200 people from the juicy around the world. more than 300000000 people are seeking refuge as to why?

because no one should have to flee. make up your own mind. d. w. made for mines. ah, ah, [000:00:00;00] ah . this is dw news. why? from berlin? as german leaders consider tightening corona virus rules. the country's public health agency urges radical steps. robert coffee institute calls for immediate and