Let me look at a whole bunch of birds and see if there is a correlation between mass and wingspan. Manute Bol Wingspan. Here, we address a simulation-based study of the WBMR effects on insect flapping flights with a specific focus on unraveling whether some optimal WBMR exists in balancing the flapping aerodynamics and body control in terms of body pitch oscillation and power consumption. Femur-to-tibia is an intra-limb ratio that has at least a slight impact on perceived attractiveness as well.[2]. Birds with high-aspect ratio wings tend toward a soaring style of flight, with their wings held out straight, while low-aspect ratios are associated with more flapping. Here is that plot. Caching effects and some food discard effects convert food into points at a 1:1 ratio. Learn more about Stack Overflow the company, and our products. LBR has a much more significant effect on attractiveness than ABR. Even within the species, however, there are some that are larger than the others. [7] This belief leads attractive people to become more confident and develop better social and communication skills. Here's a list of 19 birds with big beaks, and their pictures, to help you better understand just how unique they are. To maintain human body shape ratio and anything even remotely resembling human you would have big problems with an animal like this. Its an ominous sign for rising sea levels. Aspect ratio: 6.48. The planned engine was to be a Thielert Centurion 2.0, liquid-cooled, two-liter displacement, dual overhead cam, four-cylinder, in-line, turbo-diesel with full authority digital engine control with an output of 155 hp and burning Jet-A fuel. Ok. T. Nakata, and The Best Nest Boxes Birds Will Actually Use for 2022, South Georgia and Tristan da Cunha in the Atlantic, The Top 9 Largest Flying Birds in the World By Wingspan. That sounds about right. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. H. Liu, , Recent progress in flapping wing aerodynamics and aeroelasticity, M. K. Salcedo, Wingspan is the distance from the tip of one wing to the tip of the other wing. I mean if total weight of an airplane is 100 Lbs(Kg), how much should be the least total area of it's wings? How is a bird's wingspan measured? The bad part is that they eat jet fuel. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. The aircraft was later refined into the Turbo Skyhawk JT-A, which was certified in June 2014 and discontinued in May 2018." T. Engels, W. Wu, and 2023 Cond Nast. Its wingspan on average ranges from 8.2 to 11.5 feet (2.51 to 3.50 meter). Accuracy is within inch total span. Most flying creatures have hollow bones, but dragons as they are usually depicted just look super heavy. [4][5][6], The total length of the body (also bill-to-tail length) of a bird is usually measured from dead specimens prior to their being skinned for preservation. A versatile, integrated computational model of hovering flight that couples flapping-wing-and-body aerodynamics and three degree of freedom body dynamics was employed to analyze free-flight body dynamics, flapping aerodynamics, and power cost for three typical insects of a fruit fly, a bumblebee, and a hawkmoth over a wide range of Reynolds numbers (. M. Farge, A third group lives mostly around the equator in Ecuador and Peru. The heaviest specimen ever found was from Manchuria, China, and was 40 lbs. With these stats, its clear why the albatross is considered to be the largest flying bird in the world without too much of a contest. H. Aono, Using this method, an albatross is able to travel 10,000 miles in a single journey a truly amazing ability. T. Nakata, Attractive people can use their enhanced skillset to earn better, which means they tend to be happier than those seen as unattractive. Perceived attractiveness leads to a halo effect, leading attractive people to be seen as kinder, better, and more capable than the rest regardless of their abilities. Example: Daniel Woods, arguably the greatest boulderer of all time, is 5 8 (68 in) with a 72-inch wingspan. This can however vary with the handling and can depend on the age and state of shrinkage in the case of measurements taken from preserved skins in bird collections. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. That is works out to 13.9 pounds per foot of wingspan. This measurement is particularly prone to variation resulting from wing posture and is rarely used except as a rough indicator of size, but it is an important measurement for studies of bird flight. C.-k. Kang, The wingspan is the distance between wingtips when the wings are held outstretched. The aspect ratio of a wing is important as generally the higher the aspect ratio (longer and narrower wings) the lower the induced drag produced by the wing at a given speed. In some cases the difference between the longest and shortest feathers, that is the depth of the fork or notch can also be of use. So fearow would have a larger wingspan-heigh ratio than, say, pidgey. This large species of vulture has a wingspan of up to 10. This bird's power converts food to points at a 1:1 ratio. The average adult bald eagle has a wingspan of about 2.3 meters (7.5 feet). What sort of strategies would a medieval military use against a fantasy giant? Long narrow wings have less end edges (tips) and more stable wing area than shorter wider wings so they have less drag. (2018). These different species can be broken up into four genera (the grouping above a species): great albatrosses, mollymawks, North Pacific albatrosses, and sooty albatrosses. These birds live in Morocco, Spain, and Portugal, flying to central Asia and Europe to breed and nest through the year. Look at a hang glider for example. What are (wing area)/(weight) ratio in birds and airplanes? What Do Crows Eat? The musculature to power all this would make this "human" unrecognizable to us. length of each wing, therefore, will be: (wingspan - (body length)/10) / 2. Simply put in your email and we'll discretely email you when STRYDE is back on the market. So a dragon would need much larger wings if it needs to be able to take off without a running start or jumping from a high place. The average ratio between the femur and the tibia is 0.743, and heterosexual women seem to find men with legs that come close to this average to be more physically desirable. Our total donation was $7,439 USD ($10,834 . http://www.limblengtheningforum.com/index.php?topic=2384.0, [5] Bertamini, M., & Bennett, K. M. (2009). Still, that isnt the whole story! C. E. S. Cesnik, and Their proportionally massive wingspan offers them a few advantages that separate them from many birds on the earth. J. N. S. Goo, and Wings are usually at least twice as long as they are wide, so something like $6.9\,$m$\times14.5\,$m would be about right. The wing length usually defined as the distance between the bend of the wing and the longest primary can also vary widely in some large birds which have a curved wing surface as well as curved primaries. A 1973 Cessna 177, a sleeker version of the 177 (more streamlined, no struts), has a wing loading of 14.4 Lbs/Sq ft. Or, 0.069 sq ft/lb. Birds arose as warm-blooded, arboreal, flying creatures with forelimbs adapted for flight and hind limbs for perching. Among flying birds, the wandering albatross has the greatest wingspan, up to 3.5 metres (11.5 feet), and the trumpeter swan perhaps the greatest weight, 17 . For the formula about wingspan to be accurate, you must use the bird's weight in pounds. Mi cuenta; Carrito; Finalizar compra 0. The words ideal physique bring to mind the image of da Vincis Vitruvian Man a proportional body of a male figure that is perfectly inscribed within a square and a circle. The A350 XWB from Airbus is a new family of wide-body aircraft featuring a wingspan of 64.75m. II. The male emperor penguin loses 40% of its weight during the course of incubation.[10]. How big would a dragon's wings need to be? T. Jakobi, Royal Society Open Science, 5(5). VI. These forces are reduced by streamlining the bird's body and wings. The fitting linear function has a slope of 0.408 and an intercept of 0.049. Lift and power requirements, Size effects on insect hovering aerodynamics: An integrated computational study, Lift and power requirements of hovering insect flight, Into thin air: Contributions of aerodynamic and inertial-elastic forces to wing bending in the hawkmoth Manduca sexta, Importance of body rotation during the flight of a butterfly, H. Liu, Not available new anymore " a diesel-powered model, to be designated the 172 Skyhawk TD ("Turbo Diesel") starting in mid-2008. The peregrine falcon, for example, tucks its wings in (producing a low aspect ratio) for swift manoeuvrability. Categories . 90-127 cm. Length: 18-26". [9], The ratio of the femur to the tibia can play a part in making your legs look more aesthetically pleasing. As an Amazon Associate I earn from qualifying purchases. Check out our bird wingspan selection for the very best in unique or custom, handmade pieces from our board games shops. The wandering albatross is often viewed as the largest albatross species in the world. This basic plan has become so modified during the course of evolution that in some forms it is difficult to recognize.. I can't remember who suggested this, but this is a plot of the natural log of the wingspan vs. the natural log of the mass. If you preorder a special airline meal (e.g. Limb Lengthening An Overview. Similar math can be done for other birds. Rest assured we answer all these questions, and do our best to not blow body ratios out of proportion. why does loki have a green cape? Scientific name : Balaeniceps rex. Most "When Activated" powers (brown . The dragon is 20 foot long and weighs 6 tonnes. Albatrosses are seabirds that live along the Pacific and Southern Ocean (near Antarctica) coastlines. Lets take a look at these amazing birds to learn: how big are albatrosses and whats their wingspan? There is debate among the number of species that exist within the genus, but there are at least 22 commonly recognized species by the IUCN. The wingspan of an albatross is what allows it to go the distances required to breed, feed, and live. bird wingspan to body ratio Best Selling Author and International Speaker We use cookies to ensure that we give you the best experience on our website. A. P. Willmott, , A computational fluid dynamic study of hawkmoth hovering, The aerodynamics of revolving wings I. Want to improve this question? In birds of prey the measurement is usually from the bill tip to the ceres. Unmotorized? That would be a big bird (not Big Bird). *We often hear or read that the minimum size (horizontal length) of a cage should be 1 - 2 times the wingspan of the parrot housed there. Human Body Ratios. Please familiarise yourself with the rules before posting. (2015, June 29). Effect of Leg-to-Body Ratio on Body Shape Attractiveness. @CrossRoads The C172S is still in production. For example, if both wingspan and height are 180 cm, the ape index will be 180/180, which is 1. On of the heaviest extant flying birds is the Mute swan. 5 feet and can weigh up to 33 pounds, making it the largest and heaviest raptor in the Western Hemisphere. The WIRED conversation illuminates how technology is changing every aspect of our livesfrom culture to business, science to design. philip boyd wife; Tags . How could dragons effectively use their wings as weapons in ground combat? The aspect ratio of a wing is calculated as b2/S , where b is the wingspan and S is the surface area of the wing. S = Wing's area. The Andean condor is a powerful glider, taking advantage of the strong air currents found in its mountainous habitats. Due to the sheer number of birds affected by the Australian wildfires, Stonemaier Games announced early that the next expansion for Wingspan will focus on the region of Oceania. The measurement is made by laying the bird on its back and flattening out the head and neck gently and measuring between the tip of the bill and the tip of the tail. As part of this activity, students visit the PowerPlay exhibit at the Children's Museum of Houston. More fuel would be needed to keep them at a constant speed. III. Published by at 07/06/2022. Know When to Let Good Cards Go. Aviation Stack Exchange is a question and answer site for aircraft pilots, mechanics, and enthusiasts. $$ A = \frac{L}{0.5 v^2 \rho C_L} $$. It only takes a minute to sign up. In the case where special structures such as racquets or streamers exist, these are separately measured. This bird has a wingspan of 3.7 meters and a mass of about 12 kg. Since the average ABR and LBR vary across geographical and ethnic groups, preferences for these ratios also vary. A Little-Known Inflammatory Disease Is Hiding in Plain Sight. Categories . How Old Are You, Really? 15-Plus Foods They Love! 4B . In a study conducted by Mobius and Rosenblat, employers were willing to give a 10.5% higher salary to potential employees simply by looking at their photographs.[7]. When he isn't distracted by his backyard birdfeeder, you can find him camping, exploring, and telling everyone around him about what he's recently learned. Can scalable design of wings for flapping wing micro air vehicle be inspired by natural flyers? Actually, it makes the data look a little better. Can airtags be tracked from an iMac desktop, with no iPhone? Stability: Long narrow wings give a plane or bird more stability. Sooty albatrosses breed on islands in the sub-Antarctic but range along the Southern Ocean from South America all the way to Australia. New Tests Want to Tell You. The total body weight is an important biological measurement, usually used as a proxy for body mass. Want to improve this question? On the other hand, if the wingspan is 175 while the height is 170, the ape index will be 1.03. A 1977 Cessn 150, 2 seat trainer, has a wing loading of 10 Lbs/Sq ft. Or, 0.1 sq ft/lb. Ad Choices. ). Aside from flying birds, there are a few other species that are stuck on the ground that are significantly larger than an albatross. D. Kolomenskiy, and One way in which the shape of the wing can be described is through wing aspect ratio. M. Maeda, T. Nakata, However let's look at at wingspan to weight ratios of some of the largest know flying creatures. North Pacific albatrosses are considered the most tropical of all the albatrosses, with two groups that nest on the Hawaiin Islands and Japanese Islands, respectively. To calculate his ape index as a ratio you divide his wingspan by his height: 72 in / 68 in = 1.06. This is important because a bird should be able to totally extend its wings (in the cage) and flap them vigorously for exercise. Aircraft (biplane): Starr Bumble Bee II - 1.68 m (5 ft 6 in) P. Schtzner, , Elastic deformation and energy loss of flapping fly wings, K. Suzuki, Men, meanwhile, are preferred if they have relatively higher LBRs than average. Why does the DC-8-70 have the same MTOW as the DC-8-60, despite its more powerful engines? Are preferences for legs length universal? This Lab-Grown Skin Could Revolutionize Transplants. The wing width can also be measured from the carpal joint to the tip of the first secondary feather.[9]. I always like to end by saying something. These birds are similar in size, with some sources arguing for their slight advantage. Navigation. Wingspan: 43-57". Great Blue Herons are large, long legged birds with a 6 foot wingspan! H. Liu, , The dynamics of passive feathering rotation in hovering flight of bumblebees, D. Kolomenskiy, The trade-off is that this type of plane wont be very manoeuvrable. Wandering Albatross. A study of over 300 women that examined the effect of ABR on attractiveness found that an ideal ABR doesnt exist, and ABR by itself didnt have any impact on mens appeal.[2]. I guess I did. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. In some birds the distance between the back of the skull and the tip of the beak may be more suitable and less prone to variation resulting from the difficulty of interpreting the feathered base of the mandible. Using this method, they will often go weeks at a time without ever touching land. T. Engels, Since then, many adaptations have been sculpted by natural selection, making birds the unique group they are today. Have some feedback for us? In my previous post about flying, I plotted wingspan squared vs. the mass of the bird. W. Shyy, N. Phillips, and Why men and women find longer legs more attractive. The ratio of the length of wings to their width is called aspect ratio. Unlike the On average, this number tends to be 0. Da Vinci and the Divine Proportion in Art Composition. M. H. Dickinson, , The aerodynamics of hovering flight in Drosophila, Near- and far-field aerodynamics in insect hovering flight: An integrated computational study, The changes in power requirements and muscle efficiency during elevated force production in the fruit fly Drosophila melanogaster, D. Kolomenskiy, Once the ratio of the upper and lower arm bones is changed too, both ratios combined affect how a man is perceived. These standards cant necessarily be applied to actual humans, though. D. Kolomenskiy, Aspect ratio = wing length (m)/wing width (m). Pick an average weight, 0.67 oz = 0.041 lbs, and the result is 0.28 sq ft/0.041 lbs = 6.68 sq ft/lb. This work was partly supported by the Grants-in-Aid for Scientific Research of KAKENHI, Grant No. That is works out to 2.75 pounds per foot of wingspan. Yes, he cheats a little bit. Tatum, at 6 8 tall, has a fairly typical height to wingspan ratio for an NBA player. Wood, , Controlled flight of a biologically inspired, insect-scale robot, A. J. Bergou, However, due to its variability with seasons and body condition, it is not recommended to be used as an indicator of body size. This gives us a range from about 3 pounds per foot of wing span to 14 pounds per foot of wingspan. A Cessna 172S, which is a fairly recent airplane (less than 20 years old) with 4 seats, has a Wing Loading of 14.7 Lbs/Sq ft. Does your dragon needs to take off or does he just glide from cliffs or high places? [7], The upper margin of the beak or bill is referred to as the culmen and the measurement is taken using calipers with one jaw at the tip of the upper mandible and the other at base of the skull or the first feathers depending on the standard chosen. The Kori bustard can weight up to 44 pounds and have a wingspan of 9 feet. Let me just make some guesses. It is widely accepted that the first bird, Archaeopteryx lithographica, evolved approximately 150 million years ago. The Mystery Vehicle at the Heart of Teslas New Master Plan, All the Settings You Should Change on Your New Samsung Phone, This Hacker Tool Can Pinpoint a DJI Drone Operator's Location, Amazons HQ2 Aimed to Show Tech Can Boost Cities. The WBMR and wing mass distribution can lead to large inertial forces and torques in fast-flapping wings, particularly in insect flights, comparable with or even greater than aerodynamic ones, which may greatly affect the aerodynamic performance, flight stability, and control, but still remain poorly understood. The best answers are voted up and rise to the top, Not the answer you're looking for? While this will make your legs look more proportional, you should remember that the tibia can be safely lengthened up to only 5 cm, while surgeons can safely lengthen the femur up to 8-10 cm.[10]. What bird has a 6 foot wingspan? Anyway, I thought I should compare these human wings to my other wing data. The measurement of the tail is taken from the base of the tail to the tip of the longest feathers. The wingspan is divided by the total height, giving the ape index. Kinematics, T. L. Hedrick, The most important thing though is that . Worldbuilding Stack Exchange is a question and answer site for writers/artists using science, geography and culture to construct imaginary worlds and settings. I have nothing for you on the wingspan-length relationship, but you might be interested in reading these articles about wings: https://www.scielo.br/j/jatm/a/3WrcFMLN96KyHFDJjQpR85M/?lang=en https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5075716/ https://pubmed.ncbi.nlm.nih.gov/2886265/. How to calculate sink rate from wing measurements. On the other hand, artists use head heights to draw realistic anatomy. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5990728/, [3] Science Buddies & De Brabandere, S. (2017, March 16). Different surgeons will have different ways of assessing which bones to extend, though. Algebraically, if you have two numbers, A and B, it has to be such that (A + B) divided by A = A divided by B. Students practice estimating and measuring in metric units, and investigate the concepts of ratio and proportion as they relate to features of the human body. Selecting this option will search all publications across the Scitation platform, Selecting this option will search all publications for the Publisher/Society in context, The Journal of the Acoustical Society of America, Shanghai Jiao Tong University and Chiba University International Cooperative Research Center (SJTU-CU ICRC), Graduate School of Engineering, Chiba University, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, https://doi.org/10.1088/1748-3182/8/4/046008, https://doi.org/10.1016/j.compfluid.2019.04.007, https://doi.org/10.1088/1748-3182/4/1/015002, https://doi.org/10.1103/physreve.93.033124, https://doi.org/10.1016/j.paerosci.2010.01.001, https://doi.org/10.1016/j.compbiomed.2020.103817, https://doi.org/10.1016/0022-5193(83)90394-6, https://doi.org/10.1007/s10409-010-0389-5, https://doi.org/10.1016/j.jcp.2008.09.020, https://doi.org/10.1016/j.jfluidstructs.2019.03.021, https://doi.org/10.1016/j.jtbi.2010.11.022, https://doi.org/10.1007/s10409-007-0068-3, https://doi.org/10.1103/physreve.92.033004, https://doi.org/10.1016/j.cois.2020.10.001, https://doi.org/10.1007/s10409-017-0677-4, https://doi.org/10.1016/S0300-9629(96)00162-4, https://doi.org/10.1103/PhysRevLett.104.148101, Effects of wing-to-body mass ratio on insect flapping flights. WIRED may earn a portion of sales from products that are purchased through our site as part of our Affiliate Partnerships with retailers. While this isnt as true as it sounds, its close! S. Ravi, Like the great albatrosses, the mollymawks live in the Southern Hemisphere and were only recently distinguished as a separate group. Diffusion models generate incredible images by learning to reverse the process that, among other things, causes ink to spread through water. B. Cheng, and Our website services, tools, and content is for informational purposes only. M. Yoshino, , Effect of wing mass in free flight of a two-dimensional symmetric flapping wing-body model, Free hovering of hummingbird hawkmoth and effects of wing mass and wing elevation, K. Suzuki, Smallest wingspan. Fearow is based off the anhinga, which wikipedia tells me is "35 in (88.9 cm) in length with a 45 in (1.14 m) wingspan.". N. Nishihashi, and However, it looks like a = 2 and b = 1 would about work. Less induced drag Long, narrow wings also have less induced drag than shorter wider wings. Wingspan-to-height or arm-to-body ratio (ABR) is one way to check if your body is proportional. 2023 Leg Lengthening Surgery. Genetic analyses show a newly discovered condition called Vexas is more common than previously thoughtand could explain some patients undiagnosed symptoms. S. Gorb, Ratios compare two quantities, like the size of one part of the body to the size of another part, or to the size of the whole. Why is an Ideal Leg-to-Body Ratio Preferred? How do Femur and Tibia Ratios Affect Leg Lengthening? Underneath thousands of feet of Thwaites Glaciers solid ice, a bot filmed peculiar features, where melting is much faster. Continue the learning with your students with one or more of these activities. It only takes a minute to sign up. For reference, two grown 6ft tall humans would need to stand head to head in order to equal the wingspan of a large albatross. How to handle a hobby that makes income in US, ERROR: CREATE MATERIALIZED VIEW WITH DATA cannot be executed from a function. Let me just ballpark it at 10 kg for the wings and stuff. https://www.goldennumber.net/leonardo-da-vinci-golden-ratio-art/, [2] Versluys, T. M. M., Foley, R. A., & Skylark, W. J. How can I find the optimum chord wing length for this wing? Even during the course of a day, the weight can vary by 5 to 10%. High aspect ratio wings Stability: Long narrow wings give a plane or bird more stability. With an estimated mass of 70-72 kg and a wingspan of 7 m, it was the world's largest known flying bird ( 1 - 10 ), about the size of a Cessna 152 light aircraft. Tian, Creating winged creatures part 1: Wingspan. [8], There are also groups like the Himba in Namibia, who have an opposite set of preferences. Here is a nice shot of the wings so that I can estimate the size: So, 7 meters. Z. J. Wang, , Fruit flies modulate passive wing pitching to generate in-flight turns, Muscle efficiency and elastic storage in the flight motor of Drosophila, This option allows users to search by Publication, Volume and Page. And what about the mass? Z. Feng, and Paley Orthopedic & Spine Institute. In some cases, a wingspan of about 9 meters (~30 feet) would be needed, especially for carrying a heavy load. Well, Cessna is still making them, and folks & schools are still buying them. They then lock their wings in place through a special biological mechanism and cruise in the clouds. Styling contours by colour and by line thickness in QGIS. Your dragon weights 12,000 pounds. H. Tanaka, , Biomechanics and biomimetics in insect-inspired flight systems, W. Shyy, WATCH: Sharks biting alligators, the most epic lion battles, and MUCH more. C.-k. Kang, and The conventions used for measurement can vary widely between authors and works, making comparisons of sizes a matter that needs considerable care.[1]. 8. The wingspan is determined by measuring the distance between the fingertips of both hands when outstretched. From Wikipedia. Bird measurement or bird biometrics are approaches to quantify the size of birds in scientific studies. A 1973 Cessna 177, a sleeker version of the 177 (more streamlined, no struts), has a wing loading of 14.4 Lbs/Sq ft. Or, 0.069 sq ft/lb An adult male barn swallow has a wingspan of 32-34.5 cm (12.6-13.6 in) and weighs 16-22 g (0.56-0.78 oz). An extinct species of bird just discovered may have had the largest wingspan ever. H. Liu, , Wing morphology and inertial properties of bumblebees, H. Liu, Press question mark to learn the rest of the keyboard shortcuts, https://www.scielo.br/j/jatm/a/3WrcFMLN96KyHFDJjQpR85M/?lang=en, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5075716/. All measurement is prone to error, both systematic and random. T. Nakata, Although field measurements are usually univariate, laboratory techniques can often make use of multivariate measurements derived from an analysis of variation and correlations of these univariate measures. Scientific American. The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. In case conversions are necessary, 16 oz is 1 pound; 1 kg = 2.2 pounds; 1000g = 1 kg. These can often indicate variations more reliably. In comparison, the largest wild-caught specimens of today's wandering albatross, Diomedea exulans, have a wingspan of only 3.5 m. Usually, people think of legs and arms measuring closer to the average more attractive, while they see those that differ vastly as unattractive. https://www.theguardian.com/science/2008/jan/17/humanbehaviour.psychology, [7] Baer, D. (2014, November 10). [6] However, when it comes to LBR, men with slightly longer torsos and shorter legs than average are seen as more attractive. An example of a human body ratio is a person's arm spanthe distance from the left hand's middle fingertip to the right hand's middle fingertip when stretching out both . Y. Chen, Enter your email in the box below to get the most mind-blowing animal stories and videos delivered directly to your inbox every day. The spirals of flower petals, shells, honeycombs all follow the golden ratio. The other competitor for the world's largest flying bird is the Southern royal albatross. Selecting this option will search the current publication in context. This gives us a range from about 3 pounds per foot of wing span to 14 pounds per foot of wingspan.