Recent content by Leon (AW)

  1. L

    Power output of an anchored propeller

    More power in will continually give more thrust (up to a limit) however the peak efficiency, where the law of diminishing returns starts to kick in, is not obvious on a power to thrust graph. It is obvious on a power into power out graph though.
  2. L

    Power output of an anchored propeller

    It is chained to a load cell I can read thrusting force of the screen. what I want is, knowing the mass of the object, how much power will that thrust be worth if i were to cut the chain. if I cut the chain I could measure it's speed and calculate the thrust from it's mass. with the chain I...
  3. L

    Power output of an anchored propeller

    Yes, I know the power in but I can't figure out how to calculate power out.
  4. L

    Power output of an anchored propeller

    I have googled it for hours but everything I have found either requires it moves or only measures forces. I likely have all the equations I need to figure this out I'm just not making the link somewhere between two of them. That's why I came here to see if anyone can point out the bit I am...
  5. L

    Power output of an anchored propeller

    I have a motore with a propeller anchored to a load cell to measure the lift produced at varying power inputs. This is for a student activity I am running and I wanted to show that though more power in gives more lift there is a point after which efficiencey starts to go down again so I tried to...
  6. L

    Can a Photon Have a Perfectly Smooth Orbit?

    Isn't its displacement in space the principal through which polorization works?
  7. L

    Can a Photon Have a Perfectly Smooth Orbit?

    can a photon have a perfectly smooth orbit? say for e.g. you have a photon orbiting a point, if its wavelength were to become twice the diameter of its orbit then would the wave not become a replica of the orbit offset by the amplitude? similarly say the amplitude is the radius of the...
  8. L

    How can a curve be one dimensional?

    change your axis set In the classic Cartesian x,y,z axis plotting system a curve is 2d as it goes through both x,z and y,z planes while lying on an x,y plane. If you use a cylindrical d,r,c axis system (distance, radius, circumference) then it would only go through the r,d plane while lying on...
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