modern museum center with. the russian cultural heritage foundation. researchers are looking for answers in more than $5000000.00 objects to each object relates to the history of. those who know about secret things terms like this. cultural heritage foundation the lives treasure the documentary. critical g.w. . get into tomorrow today the science show on d w. today we get colorful how to callous affect people do they influence our consumer behavior. and greenish great was that really what dinosaurs looked like you may be empress

surprise. also which is that a french biotech company that's using bacteria to make environmentally friendly dies. in the 17th century the physicist isaac newton was one of the 1st to experiment with color and light. he discovered that white light is a mixture of rays of different color which he separated with a prism. that helped explain how raindrops refract some like to form a rainbow. color and light inspire us move us may even manipulate us. busy busy what effect do colors have on us the internet certainly has no shortage of popular science tips on the subject read is said to have a stimulating influence lou instills a feeling of trust and glean has a relax. in fact. what can the impact of colors be scientifically proven. and

what are colors exactly the human eye is able to distinguish between millions of colors although none of them are such tangible in objective terms the colors are just different wavelength a tiny section of electromagnetic radiation ranging from x. rays and ultraviolet light to radio waves wavelengths between 40780 nanometers are visible to the human eye in this range we can see radiation in the form of color. wavelengths combined result in white lights so how do we perceive individual colors. when white light strikes an object a part of it is absorbed while the rest is reflected so not all wavelengths reach our eyes. our brain receives and interprets the reflected light leaving us to perceive a tomato for example as red. so colors are

a question of the mind rather than matter is that also why they can emotionally influence us to make it vella is a product designer she has over 20 years experience of analyzing colors and their impact in. the 30 different colors everywhere that have particular meanings including a little meaning so it's important to take a sensitive approach to the issue. and you also have to be careful when it comes to choosing color schemes what effect different colors have. men's shower gels with a red design for example are intended to evoke the traditional symbolism of power and strength in the west and make users feel important this hairspray comes in a yellow canister due to associations with the famous german brand of glue the message being it's long lasting and green now adorns all manner of products have as natural cure and pristine. so this color coded marketing actually work.

you almost need if you ask a girl which hand shape or she would buy a dark blue one. or a pink one she'll always choose a pink one. it's a clear example of products having an identical performance and the color manipulating as it leads to a feeling of belonging. but that effect varies according to our respective culture how colors influence us is partially determined by our upbringing the effect of red and green however appear to lie to some extent in evolution a concept that psychologist heiko hatched investigated in an experiment. by using the same why we asked one group of people to sample it in a room with red lighting and another group with green lighting that made a huge difference. provide to pick to go. the test group with the green lighting

found the wine more acidic and not so appealing. while the group viewing the wine under red light found it mellow and better tasting and were even willing to spend a year or more on a bottle of wine. a red color in our food is associated with brightness and enhances our impression of sweetness. the fact that red light can trigger a similar fact was however a new finding. can the same color also affect our mental focus. put that to the test to. test persons were randomly placed in rooms with different colors and asked to complete the same math and language exercises and brainteasers but the results were all similar in this case read made no discernible difference so what caused the effect with wine. type was assigned to us it seems to be something that

isn't part conveyed through our emotions relatively short term and of course was to give vocal suddenly everything is bathed in red which creates a particular mood that we in turn project on to the weinstein. protect. but if i get students to complete a test sitting for a whole hour in a reading room their perception adapts relatively quickly. so that they no longer notice the color around them. so the impact of colors on us depends on the situation. colors have a short term effect on our emotions but after a while the brain adapts to its surroundings and blanks out the colors and it all happens without us noticing a flying. colors often have different meanings in different societies in europe black is often associated with

death and mourning. in china and india white symbolizes the pallor of the day. we asked you whether any color has special meaning in your culture. she can marry pose a right that the cover of people in one during believe that read drives away evil spirits. says and watch them on a blue or green stand for life and hope he says no one would go into a pharmacy with a black or red frontage. and according to power people in peru bring in the new year with yellow including yellow underwear that's a cute tradition thanks for all your asses. 80 percent of people who spend time in the intensive care unit after surgery experienced central nervous system complications that manifest as delirium. this

can result in long damage to the brain. certain medications and high dosages can help but a hospital in bogota destroying an alternative. color plays a big role in the health industry pills for instance come in a variety of colors white is mainly for pain killers. red or orange is used for stimulants. and we all know what that little blue pill is for. but what about the color you see 1st thing in the morning maybe red. blue. or green. could that influence your well being it's a question being researched at helios university hospital the tile in germany.

head of intensive care gabriela verb and color expert axel buthe a convince the color of hospital rooms could have an immense impact on patient's health. and on one try it out in hospitals not make them excessively colorful but carefully restructure them using our knowledge of how colors of factors like in this room why . no more sterile white hospital corridors wards and workstations. conducted a study to see what impact it had in the intensive care unit. over a period of 24 months they tried out different shades the walls were painted in pastel and earth tones and the lighting was changed they asked patients before and after the revamp how they felt about their treatments. nurse tilman kearney saw the impact on his seriously ill patients 1st hand. this is i 35.

other colors have had a real effect on our patients you could say that the patients suffer less from delirium in. their orientation remains better and in general they feel better. delirium is a common problem in hospitals particularly amongst the most critically ill color helped relax the patients they were less likely to suffer from disorientation and anxiety dr vrba was skeptical at 1st but the evidence wasn't purely anecdotal she saw clear results in the medication used to treat delirium. which most astonishing for me was the use of medication which was extremely influenced in all 3 stations on average it was reduced by almost 30 percent.

using color in hospitals is not completely new. and close to berlin is now abandoned but once it used to house tuberculosis patients it's originally opened in 1000 know 2 and was renovated in the 1920 s. using more color. guide all on food police the change was meant to serve patients. on water i'm for the in i'd walk i was they wanted to avoid the impression of a sterile hospital which was at that time still very calm and they wanted to create an atmosphere of comfort and wellbeing for their patients and order to assist the healing process. begin. for color expert axel due to it's no surprise that different hues could have such a strong effect on our health. we perceive colors and that

makes something happen in our bodies colors can directly influence our breathing even our blood sugar levels you may be familiar with that when you see a delicious a color and feel like eating even though you're not hungry like when there's a pretty picture of a dessert on the menu that. was then a blood sugar goes down on we feel hungry and eat something a lot we don't need it. it's paul. x. and gabriella burka are continuing to work on the impact of color in the hospital's intensive care unit after looking at color and lights they want to consider other factors as well such as noise and smells. they see a lot of potential for improving patients' lives. because. if our blood is red white latin even if they. do you have a size question that you've always wanted and said we're happy to help out

a little ass as a video text ovoid smell if we answer it on the show. we'll send you a little surprise as a thank you card just ask. to find as i do w dot com slash science or drop us a line at d w underscore site tech on facebook d w dot science for this week's question comes from morocco is black a color. well there are plenty of black things cars. cabs the famous little black dress classic shoes even boss a fly. the paint palette ranges from black to white pigment all of these are colors prior to. surprise physically speaking black isn't really a color and neither is white nor gray. an object is considered to have color if it reflects light of a certain wavelength. a yellow banana reflects the yellow part of the light

spectrum it absorbs all the other colors so only yellow light reaches the receptor is in the eye. the effect of the color is the work of the brain. a black object absorbs all the frequencies of the visible spectrum in the most extreme case reflecting nothing. why things reflect all the spectral colors that's clear to see using a prism if we frets the line from the white object into it spectral components all the colors of the rainbow. so is it wrong to say that this hat has the color black no not really wrong because we perceive black as a color like any other. so the agreement is to call black and a christmas a color just like weiss and grey. by the way researchers all over the world are

hunting for the darkest possibilities. so far the record is held by fans have black this material made of carbon nanotubes reflects just 0.035 percent of visible light and optic coated with it looks completely flunked. it's been called the closest thing to a black hole that we'll ever see up close. in the animal world by contrast things are colorful no matter where you look on the ground . underwater. this is good on some of the best chimes of color. but what was the case with their ancestors the dinosaurs. measured 25 meters in length and weighed in at 20 tons the plant eating dinosaur diplodocus.

the 150000000 year old skeleton of the sinking back museum in frankfurt comes back to life with the help of 3 d. goggles. the dinosaur resembles today's lizards its greenish gray code has dark come of large stripes. animations of the to run of source rex typically have a similar coloration. so why these particular colors. there's the that it's represented this way because that's the way it's been done for decades and that's what viewers expect and we can't rule out that some dinosaurs may have been yellow with red dots and that may not be the most likely assumption but we can't scientifically disprove it. this is minish.

so the primordial predator may have been dark green or brown. or maybe red. or multicolored. but whatever the color they probably served a purpose animal of pigmentation acts as a signal for the camouflage a deterrent or for courtship displays and that was true in the age of dinosaurs too . but the university of bristol jacobi winter has succeeded in reconstructing color patterns and feathered dinosaurs. here the poly intelligence is examining electron microscope images of fossilized skin samples from a 130000000 year old to talk of source. even after such a long time some tiny structures of skin pigments have been preserved they're known

as milan assumes. they or. a 1000th of a millimeter we can see that they are sort of quite short and sort of egg shaped or rounded in shape and that's very typical of. that give that to brown color and when we look at living mammals or for example living poets we will see that when they have these reddish brown colors in the annals and they would have this type of shape. today's birds are descendants of the dinosaurs they have variously shaped manana sums which correspond to dark reddish or bright colors are also found in a number of well preserved dinosaur fossils a sensational discovery. one that enables precise color reconstructions for a species of tricks on kyon is microraptor or citic a source which have been extinct for more than 100000000 years. back in frankfurt

the museum boasts one of the world's most spectacular dinosaur fossils it's a city to source species that get old maya i studied with the vinta. in misrata so for me it was kind of like traveling through time back into the past he will usually have single bones or skeletons of dinosaurs and here we practically have an entire cadaver with all the skin structures of the original animals here that's very unusual. this is probably the best preserved dinosaur fossil that we know in terms of the preservation of its skin the 2nd is that it's not only a nearly complete skeleton but a nearly complete skin covering a kind of black shadow of the skin. if one here in the front as a kind of keratin covering over a bone spur that's very clear and in fact the most bizarre thing about this fossil is the long bristles on the top of the tail that haven't been seen in any other

dinosaur kinds and. the incredibly lucky find has enabled the researchers to reconstruct the animal's color patterns. using the data gathered in frankfurt. winter and his colleagues created a life sized 3 d. model of this attack a source. then examined it and open on forests like environments. based on the patterns of light and dark the researchers believe the little herbert for lived in the woods it's counter shading dark on the back and lighter on the naif is a form of come of the lodged that protects animals from predators in forest have a chance. it was a very small dinosaur compared to many of the other forms that were there and therefore it probably was quite low on the food chain which meant that it did not want to be very conspicuous in its environment and that's why we have these types

of patterns we were able to look at the. and we could show that they were sort of a typical sort of reddish brown color which fits very well with the type of forest litter the soil and leaves that we would have in a forest and then we can see you know the color shading which would be really important for making it look almost flat for the predators that would have been around back then. may have enabled the diminutive dinosaur to walk safely through the forest on 2 legs. dinosaur pigmentation tells us a lot about life on earth 100000000 years ago. although we still don't know exactly what to rex looked like one of its relatives found in china might even have had floppy feathers cute but no less dangerous. it's possible to find reasonably priced paints these days but that wasn't always so

ultra marine blue made from the gemstone lapis lazuli was very expensive. in ancient rome purple had to be extracted from snails laboriously only emperor nero was allowed to wear the color. when it became possible to manufacture paints and dice and vertically they became available to everyone but that doesn't mean they're sustainable a french stars have is now planning to change things. this may look like modern art but it's actually a natural process at work believe it or not these blue color trails are made by bacteria. we've known for decades that mike. organisms can produce pigments because what we're doing today p. leaders expanding their production to an industrial scale with a view to replacing the production of patrol chemical dyes worldwide long gone.

70 blatche and beyond. say they're the 1st to study this extraordinary natural process they're the founders of the french start up believe based in to lose they see these microorganisms that's great allies that could be used to color all our clothes without any chemicals for years they worked to identify the microorganisms best able to produce color. these microorganisms contain 2 talks of enzymes firstly enzymes that comprised down sugar molecules for example and secondly enzymes that can reassemble those molecular fragments to make colorful dye more cubes. in 2015 they finally developed a low carbon method to obtain pigment for dying textiles it's a method that's been used for centuries in the food industry you know we allow these microorganisms to ferment to bit mike fermenting beer. but instead of consuming sugar to make alcohol the microorganisms are consuming sugar to make dies

. because of that. it takes a week and warm temperatures for the blue pigment to appear the substance is then tried to obtain a biodegradable powder. suitable for dyeing different types of fabric depending on the formulas we apply we can produce colors ranging from burgundy to light blue. believe has set its focus on india and china the biggest textile produces the company dreams of transforming the whole production chain making it more sustainable could believe help to lose return to its heyday when the city. it was the capital of blue. doing there in a sense the french city blossomed thanks to the pastel blue business the soft blue dye was derived from a local plant but the flourishing industry slowly declined from the early 19th

century. nowadays to loose has abandoned the industrial scale production of the natural pigment but there are still signs throughout the city that hark back to the glory days of the business. so far the startup has produced several kilos of dye powder with the help of the bacteria but they will need to improve the process if they're to compete with petro chemical dyes to reduce costs they're planning to use agricultural waste as a substitute for sugar. one of. the big advantages that we can take all of the leftovers like stange leaves other parts of the crop and use them as a source of carbon so we can kill 2 birds with one stone. 520-2170 palash and his team expect to be producing several tons of dipole to

a year we might then be able to find clothes died with that pigment but they would need more time more money and more production capacity to become a serious alternative to the petro chemicals industry. next week we're heading to indonesia to visit a school where rats hands are prepared for life in the jungle that and much more next time on tamara today see that.

sometime in the 26 to you my great granddaughter. but not the word like in your life story in around half a century. it's really frightening. half past the book why aren't people more concerned.

little yellow boots in 75 minutes long double to. obstruct. to take one step further up the face to consummate. the business side of love really tough to search the come up fight for the truth sell the big time to overcome boundaries. and connect the world. it's time for putting w d w s coming up ahead. minds. how's if you don't know. where i come from the goal is that to get to cisco it's just reckless chinese food that's measure of where i am it's always reminds me of home after

decades of living in germany china's food is one of the things i miss the most but that taking a step back i see things i need to look different to me not. many of ford's 1st as american nations that exist to add the part of the wall which haven't been a tremendous headache in china pattern you i'm not a chinese people wondering if they're going to take it but if you have the right to learn all that is this is their job just under through my how i see it and that's why i have nothing my job because i tried to do it exactly it is a great day my name of the name too and i want to added that for you. 2

this is coming to you live from berlin hong kong's leader pushes ahead with legislation that's fueled the territory's biggest protest in decades kerry love says the proposed extradition wall is necessary to uphold just it's the critics say beijing really wants to target political opponents in the city protests against the wall turned.