What is Flying: Definition and 243 Discussions

A flying saucer (also referred to as "a flying disc") is a descriptive term for a supposed type of flying craft having a disc or saucer-shaped body, commonly used generically to refer to an anomalous flying object. The term was coined in 1947 but has generally been supplanted since 1952 by the United States Air Force term unidentified flying objects (or UFOs for short). Early reported sightings of unknown "flying saucers" usually described them as silver or metallic, sometimes reported as covered with navigation lights or surrounded with a glowing light, hovering or moving rapidly, either alone or in tight formations with other similar craft, and exhibiting high maneuverability.

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  1. B

    How Does Wind Affect Airplane Groundspeed and Flight Angle?

    Homework Statement a small airplane flies at a max airspeed of 255km/hr. (velocity relative to air). The wind is blwoing from the north at 63km/hr. The pilot heads this plane at a heading 41degrees south of straight east. a) what is the planes groundspeed (the velocity that the plane will...
  2. Mk

    UFO flying over Denver with six year old trapped inside

    http://www.tmz.com/2009/10/15/six-year-old-boy-trapped-in-weather-balloon/ Click for sound... this is a live feed. A six year old boy appears to have launched a homemade weather balloon— he is stuck inside at an altitude of 8000 feet. He's been in the air since before noon.
  3. P

    Flying Ski Jump: Exploring Distance and Speed

    Homework Statement In a flying ski jump, the skier acquires a speed of 110 km/h by racing down a steep hill and then lifts off into the air from a horizontal ramp. Beyond this ramp, the ground slopes downward at an angle of 45 degrees. (a) Assuming the skier is in a free-fall motion after he...
  4. M

    The science of flying molten tungsten

    Hi, a friend of mine - a college physics professor, and me, have had a discussion about an experience he had in his early school days, and we haven't been able to prove or dissprove what he thinks he saw. During an incandescent light burn-out (12V bulb on 220V =), he thinks he might have...
  5. A

    What Causes a Flying Disc to Roll in the Opposite Direction of its Spin?

    Why does a Frisbee delivered by a right handed thrower with a back hand release tend to roll to the left? or in general: Why does a flying disc tend to roll in the opposite direction that it is spinning? (see attached image)
  6. G

    Related rates and flying airplane

    Homework Statement An airplane flying horizontally at an altitude of 3 miles and at a speed of 480mi/hr passes directly above an observer on the ground. How fast is the distance from the observer to the airplane increasing 30 seconds later? Homework Equations The Attempt at a...
  7. T

    Questions About Aerodynamics and Flying Cars- Help

    Sorry i didn't know where else to ask this so I'm hoping you guys can help anyways. If a air moving over a wing causes lift then why do planes need to move in order for this to happen. What i mean is instead of moving in order for the air to pass the wing why can't we "blow" air at fast speeds...
  8. C

    How Can You Build a Flying Shoebox for a Physics Project?

    Hey, I was just referred to Physics Forums by a friend. I am not sure if this is in the correct forum, please movie if necessary. I just received a project for my High School Physics I class. I have to create a Flying Shoebox Cargo Project. This is the rubric...
  9. Cyrus

    Avoid Flying in Icing Conditions

    Don't fly into known icing conditions. http://d.yimg.com/img.news.yahoo.com/util/anysize/400,http%3A%2F%2Fd.yimg.com%2Fa%2Fp%2Fap%2F20090213%2Fcapt.47ac24e5a3de43cf8e46f8a78db23205.plane_into_home_nydd113.jpg?v=2 Pilot error...
  10. J

    Problem 3.62, Young and Freedman-On the Flying Trapeze

    Problem 3.62, Young and Freedman--On the Flying Trapeze A new circus act is called the Texas Tumblers. Mary Belle swings from a trapeze, projects herself at an angle of 53 degrees, and is supposed to be caught by Joe Bob whose hands are 6.1m above and 8.2 horizontally from her launch point. You...
  11. S

    An airplane flying with a velocity

    [b]1. Homework Statement An airplane is flying with a velocity of 85.0 m/s at an angle of 19.0 degrees above the horizontal. When the plane is a distance 106 m directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. [b]2. Homework Equations...
  12. E

    Can Sound Waves Create a Hoverboard?

    Hi there, I was just wondering if it would be possible to create a hover board by using sound. i have a vague idea on how it would work but would it be feasible or just a waste of time and effort or even if there are some out there already. It would work by using some speakers and a...
  13. A

    What is the maximum height reached by a flying cow launched from a castle?

    This is part of a project I'm doing, and I'm not sure if you can actually work out the answer with the information I have available, but I'll see. Its a review of the physics involved of the scene in the monty pythons the hold grail where the cow is catapulted out of the castle. So, the question...
  14. T

    Magnetic Flux, Equator and flying bullets

    Homework Statement At the equator, the earth’s magnetic field is approximately horizontal, is directed towards the north and has a value of 8 × 10^{-5} T. (i) Estimate the EMF induced between the top and bottom of a bullet shot horizontally at a target on the equator if the bullet is...
  15. I

    Plane flying at an angle, trying to find radius

    Homework Statement To change the direction of the plane, its wings are banked. If the wings of the plane are banked 50.0° to the horizontal, what is the radius of the circle in which the plane will be flying? Assume that the speed remains 480.0 km/h during the turn and that the magnitude of...
  16. M

    Building a Flying Ship: Calculating Necessary Horsepower

    im working on a ship that can fly; simple yes . well having a little trubble tring to found out how mutch HP is needed to lift one pound in the air. I am making the engine my self i can't really give to mutch information at this point in time becouse I am still working on the frame work for...
  17. lisab

    Flying through volcanic ash can be dangerous for aircraft and passengers.

    This isn't purely an Earth science question, but I don't know where else to post it. Recently, the Kasatochi volcano erupted in Alaska. It brought to mind something that happened to me a long time ago that I have always wondered about. In 1989 I was flying from Alaska to Seattle. Days...
  18. B

    Why is a space probe spinning around its own axes, when flying through space?

    Why is a space probe spinning around its own axes, when flying through space?
  19. M

    Is this flying theory Possible?

    Hi, My name is david and i was wondering if you would be able to see if my theory works. I don't know anything about physics but i do have a good inventive imagination. I want to know if you had 8-10 air compressors at maximum pressure and a 7m hose and nozzle fore each compressor attached...
  20. D

    Creating a Flying Device Using Vacuum Lift

    I'm working on a project with several others to create a flying device much like a blimp, but smaller and more agile. Our method of life is eighther a light gas like helium or preferablly, a Vacuum system that ajusts the % of vacuum inside a set space to provide lift and control decent. The...
  21. S

    Uncovering the Mystery of Thompson's Flying Ring

    Can anyone explain how flying ring works? like the demostration whith a magnetic coil connected to AC poer and an aluminum ring. the ring was placed on the top of the coil and althought aluminum is a non magnetic, the ring was thrown to the ceiling. can anyone tell me why there was force on...
  22. L

    Solving the Flying Pencil Problem - Get Help Now!

    Homework Statement Place a pencil on the edge of a table and I hit it. How shall it fly? When will it fly the highest distance? Homework Equations Definetely F=m*a and for the flight x = 1/2 a t^2 The Attempt at a Solution Well there are several hidden factors that are making the...
  23. D

    Can rotational force of the earth have any effect on flying projectiles?

    Well we know guys that the Earth spins to the east. So i was thinking, if you launch projectiles (lets say golf balls) of equal speed and angle to the east and launch some to the west, will the ones thrown to the east land farther from the launching point compared to the ones thrown to the west...
  24. P

    Flying between aircraft carriers - vectors

    Homework Statement You are a pilot on an aircraft carrier. You must fly to another aircraft carrier, now 1450 km at 45 degree of your position, moving at 56 km/hr due east. The wind is blowing from the south at 72 km/hr. Calculate the heading and airspeed needed to reach the carrier 2.5 hour...
  25. Q

    Calculating Trajectory of a Plane Flying at 100m/s

    Question is: plane flies at a speed of 100m/s at a height of 18m above water plot the trajectory from release to first impact point, in intervals of 0.2m managed this and have plotted the trajectory, with relevant velocities and resultant but the next part asks: "At each bounce the...
  26. C

    Are those flying rods on tv real?

    just seen this flying rods on tv and people almost everywhere have seen and captured it on film just wondering if its real or something. here are some links if you don't know what iam talking about. http://www.subversiveelement.com/Rods.html
  27. L

    Can you feel the weight of a cloud as it flies over?

    I once read an article that said the average weight of a cloud is equal to eight elephants. I know that they are very massive and even larger so they are not that dense knowing this I pose two questions... How would one measure the wieght of a cloud when the density/volume is not uniform nor is...
  28. D

    Does a flying fly affect the weight of a plane?

    I know this may seem elementary to many on this forum so please forgive me if it does. We are having a late Christmas celebration and this question has arisen. If a fly is in a plane and flying does the plane weigh more than before the fly entered the plane? Assume the fly continues to...
  29. S

    Bicycle physics - Flying over the handlebars

    It is known that maximum braking occurs when the front brake is applied so hard that the rear wheel is just about to lift off. Skilled cyclists use the front brake alone probably 95% of the time. However, improperly modulating the force applied on the front brake will bring the bike to a...
  30. L

    Centripetal accel - airplane flying in a horizontal circle

    centripetal accel -- airplane flying in a horizontal circle... Homework Statement An airplane is flying in a horizontal circle at a speed of 116 m/s. The 77.0 kg pilot does not want his centripetal acceleration to exceed 6.00 times free-fall acceleration. (a) What is the minimum radius...
  31. A

    Calculating Angular Momentum of a Sliding Beam-Man System

    A uniform beam with mass M = 168 kg and length L = 2.3 m slides broadside down along the ice at a speed of v0 = 8 m/s. A man of mass 85 kg, who is initially at rest, grabs one end of the beam as it goes past and hangs on as the beam and man go spinning down the ice. Assume frictionless motion...
  32. P

    Airplane Flying: Finding Direction & Ground Speed

    Homework Statement An airplane is flying toward the Southeast with a speed of 200 m/s, and the wind is blowing toward the Northeast with a speed of 60 m/s. A. Which direction will the plane head now? B. What is the groud speed of the plane? Homework Equations The Attempt at a...
  33. A

    Optimal Angle to Throw a Stone for Maximum Distance | Flying Away Stone

    Homework Statement At which angle we should throw the ball ,so it always flies away from you? The Attempt at a Solution Somewhere after the max height the velocity of the stone is tangent to the line joining with the starting point(you can look to the file).Let's say that angle of this...
  34. kach22i

    Hoverboards - Flying Saucers - Jet Packs

    Future Horizons Hoverboards - Flying Saucers - Jet Packs http://www.futurehorizons.net/ I think the TV program "Mythbusters" debunked the JetPack design, but why should they have all the fun? Come on guys and gals, rip these guys a new one. :lol: I think the Flying Saucer actually has a...
  35. I

    Kinematics in 2d of eagle flying

    1. An eagle is flying horizontally at 6.0m/s with a fish in its claws. It accidentally drops the fish. (a) How much time passes before the fish's speed doubles? (b) How much additional time would be required for the fish's speed to double again? 2. Maybe I'm thinking too hard about this...
  36. E

    Plane flying between two points

    An event occurred at point A (x,y,z,t) = (0,0,0,0) and Point B (-500*10^3,0,0,0) simultaneously on earth. An airplane flies along the line (in space) connecting A and B with velocity 12/13v. The airplane is between B and S and is moving towards S. Which event occurred first. How...
  37. ZapperZ

    130 cats + 1 bag of food = flying fur

    I know there are plenty of cat lovers on here, but I think even you people can't stand them when there are THIS many! :biggrin: This is actually scary! Zz.
  38. D

    Can a Closed Jar Measure the Weight of Flying Bees Inside?

    We have bees flying in a jar, not touching it. Jar is closed and air in it has standard atmospheric pressure. Here is the question: if we put that jar on a weighing-machine, is ti going to show the mass of the bees? I had some theories about it, but many people thought differently, trying to...
  39. R

    Projectile motion of a flying plane

    Homework Statement An airplane is flying with a velocity of 90.0m/s at an angle of 23 degrees w/ the horizontal. When the plane is 114 m directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment . How far from the dog will the suitcase land? You can...
  40. Ivan Seeking

    Moller Flying Saucers starting at $125K

    http://blog.wired.com/defense/2007/04/flying_cars_pri.html
  41. R

    Pigeons flying in a truck on MythBusters

    A truck driver, it is said, once explained that when he was crossing a bridge and was overweight with birds; he just rapped on the truck and got the birds flying, so the truck was lighter! Of course, it was explained on MythBusters that Newton's Third Law does not work that way; and by...
  42. T

    Projectile Motion of Flying Balloon

    Homework Statement A balloon is flying directly upward with a constant velocity of 6.0 m/s. When it reaches 145 m above the ground, a package is thrown horizontally at 4.5 m/s with respect to the balloon. How many seconds after being launched will the package hit the ground? Homework...
  43. F

    About a bee flying inside a moving train

    I have some questions which i can't seem to answer and understand. Here goes: Imagine a bee flying inside a moving train moving at a constant velocity in one particular direction. the bee is flying in mid-air and is not in contact with any of the train parts. qns 1: does the bee need to...
  44. K

    How to make a flying rocket by using papers?

    Oh crap,my teacher asked me to participate in the coming Science Fair in my school.I have to make a rocket that can fly.How to do one?
  45. J

    Calculating Monarch Butterfly Flight Time in Steady Wind Conditions

    Flying ButterFly---URGENT Homework Statement Monarch butterflies can sustain air speeds of 4.4 m/s while migrating. A certain monarch wants to fly to a location due west 4.7 km away. A steady 2.4 m/s breeze is blowing from the east to the west. How long will it take the monarch to make the...
  46. daniel_i_l

    Catch a Flying Sheep - A Fun Program for Your Desktop

    Hi! how's everything going? i just made a small program which gives you something to do on the computer when you're board (or waiting for something to finish). The program put's an animated sheep on your desktop that you can catch with the mouse and throw around to make it bounce of the sides...
  47. Ivan Seeking

    What Makes the Manta Ray the Ultimate Flying Machine?

    - the Flying Manta Ray :cool: :cool: :cool: http://www.youtube.com/watch?v=HBa9wdOANHw&mode=related&search=
  48. S

    Relative speed of flying bird?

    Homework Statement speed of man=120m/h angle of bird flight with ground=60 degrees.Homework Equations A man on the ground sees a bird flying at angle of 60 degrees with horizontal.He started running at 120m/hour,is able to stay directly below the bird.What's bird speed? The Attempt at a...
  49. S

    Calculating the Speed of a Bird Flying at an Angle

    Hi friends, Plz. point me how to find the following: A man on the ground sees a bird flying at angle of 60 degrees with horizontal.He started running at 120m/hour,is able to stay directly below the bird.What's bird speed? Thanks in advance.
  50. siddharth

    Can Facing Turbulence Help Overcome a Fear of Flying?

    It's a long time since I traveled by flight. I was always uncomfortable flying. It's especially scary now when I'm not religious :rolleyes: Flight to catch tomorrow. Time for me to find some solace in statistics. P.S - I have proved the Riemann Hypothesis
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