Survival realizable complex team. And flying Robots In Disguise sent out to scare unsuspecting. First before we even see the light of day our biological clock has already started ticking. We grow older and birthdays pass by year after year but how and why do we age scientists are trying to understand more about the process so they can slow it down or even make it stop. Us michelle might want drives me the most use finding out why we age the item. On and. On desperate to find out how it works. And how we can intervene. Through treatments and medications to slow the aging process. Biostatistician steve harvey of the University Of California In Los Angeles for years hes been researching a method to test the biological age of humans. One of the biggest hurdles weve had in Aids Research is that we had no way to measure aging. People used to say there were pills that kept you young but we couldnt verify it because we couldnt measure the process. New testament. For time researches attempted to read the biological age of humans by studying the region at the end of a chromosome called the telomere. But that method proved unsuccessful. There was a margin of error of plus or minus fifteen years. While
years there are many factors that contribute towards our lifespan some of which are simply out of our control. In the lottery of life good genes are a top draw a gift from your parents. People who survive well into old age are more likely to have children who also have long lives. The reason is in your genetic makeup. British researchers have discovered genes in seven regions of the brain that are directly linked to life expectancy. One of these genes for example plays an Important Role in the immune system. Them. On camera such extend our longevity. While lifestyle and environmental factors obviously play a big part thirty suggests that twenty to thirty percent of the variation in lifespan is genetic. A persons gender
also plays a vital role when it comes to life expectancy. Women live longer than men globally an average of four years. Where the two genders live near identical lives however that difference is not so pronounced. Nuns and monks live under similar conditions. Here to the women outlive the men. But by an average of only two and a half years. Our genes could be a factor here. Women have two identical x. Chromosomes men have one x. And one y. Chromosome if the x. Chromosome is damaged they cannot be corrected by the other as is the case in women so men are more prone to genetic defects one hypothesis is that testosterone might also play a role in the prevalence of Cardiovascular Disease in men. Nutrition also
affects our life expectancy. A good diet is crucial to Overall Health and can help us live longer. A mediterranean diet one that includes lots of fresh fruit and vegetables and refined cereals and olive oil is another factor associated with increased life expectancy. Swedish researches back to the theory with statistical evidence. Calorie consumption also affects life expectancy. Maintaining a normal weight boosts the likelihood of a long and healthy life. On outlook on the world is another significant factor. In the one Nine Hundred Seventy s. Researchers in the us found people who are optimistic about getting older live longer. Back in the one Nine Hundred Twenty s. American psychologist lewis terman began a long term study eighty years on the Research Project made some unexpected findings on lifestyle and aging. It established that retiring and devoting time to playing golf isnt that beneficial. In fact people who continue to work after the age of sixty five live on average four years longer stay young to be in later life extends life. Exercise prolongs our life span. Sports and Physical Activity have positive effects on health and well being in later years. Regular running provides a health boost that lasts well after drugs have put away their running shoes. Research is hard study volunteers train vigorously for several weeks. They were
then able to identify cellular changes directly triggered by the participants workouts. Physical activity had contacted cellular aging. So factors that contribute to a long life include our genes in our agenda but also ones that we can influence a good diet a positive approach to life on plenty of exercise. Living longer and staying young its something many people dream of we asked our viewers on facebook what they think keeps people young. Adult biden was a book i think you need to find a good place to live so that you can rid yourself of bad feelings. Carlos slim. And as to viruses inclement mexico lots of people swear by coconut oil. And in italy olive oil is the recipe for a long life says sell paradise. Not seen you shade says happiness love
and joy other key to looking young so be happy and love each other. Also swears by positive attitude it gets rid of negative thoughts and worries and makes you feel free. Service dimitri wrote to us from the Greek Capital Athens to say partying is how people there stay young with lots of traditional dancing. And David Irvings recipe for youth is to make music. Maybe hes on to something mick jagger is after all seventy five years old. We humans spend a lot of time probably our entire lives learning new things one way or another in schools if we have the opportunity but also in everyday life knowledge social
skills strategies to negotiate the world. Different species develop their own clever methods for survival. We visited a lab where bunch of small fish showed what they can do together. In carson has had a big build here. Today thats reserved for a school of sticklebacks. The pool has some regions that are lit up and some in the shade. The tiny fish always manage to stay in the dark areas avoiding the areas in the light thats a matter of survival for sticklebacks. Some light reflects off their skin making them visible to predators but when carson puts a single fish in the pool it fails to locate the shadowy parts it seems but sticklebacks can only do that as a swarm one of the most frustrating things about schools is that the exhibit
collective intelligence the group can often solve problems but no individual within the group. Where does that collective intelligence come from how does the swarm develop capabilities that individual fish dont have. That something thats puzzled researchers for a long time. They watched the Swimming Fish over and over again. But they found the decisive clue in an old russian book there were some Great Britain work in the fiftys and sixtys in russia is a guy called Dmitri Ruddock of who was the first person to actually realize that the interactions among these individuals could produce Emergent Properties and he tracked the motion of first by projecting city thought on a wall and tracking where each individual goes with a pencil and he speculated that in future this is going to become increasingly
important to understand how and why this fall schools. In carson and his colleagues took on the idea and refined it with the help of modern technology. Theyve created bar codes to attach to the fishes dorsal fin. Each fish gets one of these individual markers so they can be clearly identified at any time. Of the. When theyre released into the big pool. As expected the fish moved from shadow to shadow. All. The Camera Footage of the Swarms Movement is then analyzed using software that can show the path of each individual fish. Straight away the scientists notice that the fish swim or slowly when they reach a dark area. In Carson Studies how the changes in speed affect the swarms overall behavior. To attract the motion we can look at the accelerations that the individuals exert influence the social influence that exists between these different individuals and we can visualize these this connections almost like springs or realistic connections between the individuals and this allows us to understand then how the collective how this network of communication helps the the group solve problems what we find is that the social interactions
its almost like a spring an invisible spring between the individuals and sort of two individuals are moving together and one hits a dog crate and slows down the other remains going fast the spring its title the elastic gets tighter and tighter against the soft exerting a force that turns the Cinder Goodwill towards the dark region even though it doesnt know its there. The spring represents one of the swarms of ground rules always keep the same distance from your nearest neighbors. When one fish slows down and lags behind initially the distance grows the spring stretches the restoring force makes the fish swim to the shadow. The amazing thing here is that evolution has found very very simple rules the rules of the simplest possible of the organisms could use and even though the individuals
are not aware that the solving the problem as a collective. Its not just sticklebacks that solve problems together lots of species seem to demonstrate collective intelligence. One thing salt water fish dont need to learn is how to deal with the sultan the water they live in whenever they drink lots of salt enters their blood luckily they have specialised cells and they kill those that transports it back into the water. Which brings us to an interesting question that our fear francisco enough for in mexico has posed. Why is the ocean so salty is someone constantly pouring salt into it just the opposite so farmers harvest the minerals from the sea so we can later sprinkle it on our food. The ocean salt begins its journey when it rains in the mountains for example. As the water flows
through soil and over rocks it picks up Sodium Chloride a mineral formed when the metal sodium reacts with chlorine gas. You dont detect the sultan fresh water lakes and rivers because the concentration there is too low. But as the rivers transport the water into the oceans the salt accumulates over time along with more released from benson the ocean bottom. As a result one leader of sea water contains about three tablespoons of salt on average. Thats one good reason why you really dont want to drink ocean water. But why Doesnt The Sea continue to get salty or. Thats probably because some of the dissolved salt is constantly being removed from seawater to form new minerals deep down on the seabed. When sea water seeps into the shore along the coast it also leaves salt the posits there. The water evaporates into the atmosphere only to fall again as rain. In rivers washing more salt into the sea. The problem is right right right and even if you. Do you have a Science Question that youve always wanted on state were happy to help out send it to us as a video text over smell if we answer it on the show well send you a little surprise as a thank you cannot just ask. You to find as i do w dot com slash science or drop us a line at d. F. W. Undisclosed site tech on facebook d w dot science. Discovering pretty crowded what with countless birds flying around and lots of plane sitting all over the place. In fact there are about two
hundred thousand flights every day kids we see them full speed it up. Planes and bats do not mix its extremely important to keep birds away from airports but thats not easy. The Dutch Company called Clear Flight Solutions has come up with an interesting answer to the problem. It looks like a bad approach. But this is very bad and it hasnt quite mastered london yet. And this Clumsy Machine is supposed to frighten off real boats everyone knows that birds are dangerous for airplanes but birds are also annoying for farmers because they are crops and birds in history are not a really good match because first oil and gas side it is not wanted the birds can nest there so theres a lot of various sides where birds are. On one side so you want to keep them out of the area and thats where we can help. Come back at port windy weather isnt the
only factor hampering a smooth landing. Keep. Close tie or flying objects on the runway. A number of pose a safety risk but once youre in hamburg they include seagulls and crows. And were seeing increasing numbers of grey herons ducks oh i also grey geese. Called guns ingrid is a real falcon truly Firin Juicing Falcon ahead but boca takes her to the airport to scare off other birds hes heard of The Robot Falcon but he thinks his flesh and blood can do the job much better. In the eyes of between. Can tell very quickly if a bird of prey is in the mood to hunt so if its really a danger or not they know instinctively now and then you see
a hawk flying around here on its way somewhere on the crows dont react the bird of prey needs to be actively hunting as. In contrast to the real falcon the robot that can be controlled and thats an advantage. That. Looks for the nearest prey so you cant make it go after a specific but as soon as its flown off you cant control it. Once its taken off a real falcon pulte whatever takes its fancy. A robotic one is a lot more User Friendly other bad so convinced by. A real bird of prey its dangerous to them so they will try to stay away from it and since they dont see the difference between the row birds and a real bird of prey there will also be afraid of the robber. In designing a gram might be controlled by the crate with the realistic appearance and weight of
its living Counterpart Rowboats Developers have succeeded where many others have failed guiding is straight. Because it doesnt require the wings to me and across engineering uses the same principle. Of the movement a much harder to emulate but propel themselves forward by pushing at backwards with the wing tip following an elliptical. When the butt flaps its wings tangles them slightly and opens its sound effect this minimizes the average distance as the wings meet up but. When the flaps its wings down it spreads and the feathers are efficiently pushing arrow away. Looking to fight spec for what my shins on. The very best doesnt have any feathers but its movements emulate. What kind of
make to see and what the position is the engine is closely guarded secret. Bird fly basically is based on two different motions so its like a rowing boat so what you have this you dont only have the motion of a lot of people think the birds do like the Up And Down Movement but you also have the movement thats like a rowing boat so a little bit like this and so what we really want is that the wing. Can make a flexible motion so it should be able to really move like this so those motions are really needed for flapping wings light. The engine is soon found out that attempting to copy nature brings its own challenges for an airplane for example with this very easy to make a small scale model and the put it in the wind tunnel and then to calculate everything that this related to the aerodynamics before bird this is difficult
because you cannot put a real bird in the winter i know youre going to do these measurements so you really have to learn from how to do this in nature. They also copy. The shape of the body from nature thats how the bats recognize members of their own species so they can distinguish between friend and foe in the world theres a really important. And with that it is very important that it flies by flapping its wings so it doesnt flap its wings. Other birds noted is not active for you obviously but if the bird of prey starts flapping its wings then it starts to spend energy and it wants something in return so i would really wants to get Something Back for the effort that is making so thats when it starts hunting so they know to the moment that the bird of prey starts moving its wings that they need to get out. On the road just already deployed on runways in england in common but in germany its classed as a dragon and drones have found an app or so. Next
time on tamara today were going passing for many people parties mean alcohol but how does our social behavior change under the influence that is a serious academic Question Studies show we get smiley and others look friendly and of course to get the wrong impression were not saying go out and get wasted on down sides want to hear more then chew next week bye for now. Submit thirteen unspun. European stars the browsing performance of the be. The best concert every weekend cut good in concert on. The back. Yard to nashville and i think one day this war will be considered cruel and unjust war over. And certainly all citizens of ukraine every man woman
and child the only friend their homeland is the enemy invades. No one wants russia here dont need to nuke which is the. Rebel against global news that matters. D. W. Made for mines. Make your search easy to smarter with the t w force nor. What you want when you want to look to do it extraordinary. To a place decide whats on Sunday Morning that dot com smart t. V. Is creations the interests just brand understandable Carlock Effect of the. Look what do we really know about the man behind the dark she explains what motivates him how does he think and feel good moments in the life of