1. Gallso

    Gallso New Member

    Photo experiments from the Minch Sea, Scotland.

    Took photos and videos whilst traveling from Oban to Barra ferry and vice versa. Height above sea level approximately 50 feet.

    Photo's taken over distances up to 80 miles away from observed islands and hills in both the Outer and Inner Hebrides.

    Distances calculated from Google Earth.

    Interestingly enough, Isle of Barra (facing due West) does indeed recede (as curvature equations would predict) into the sea. Island gradually disappears until major hill peaks can only be seen. Furthest photo is at a distance of 42 miles.

    However, when looking North towards Lewis & Harris (70 to 80 miles away), one can clearly see the island which defies all logic. Highest peak is at 2622 feet. The entire island should have disappeared over the horizon.

    First photo attached shows Lewis & Harris, Isle of Skye and Rum taken 15 minutes after leaving Castlebay on Barra.
    P8020077Z.JPG

    Second photo shows Barra taken from 42 miles away. Can clearly see curvature effect compared to third photo.
    P8020235Z.JPG
    I have photos from different ferry positions and panorama videos to prove my point also!

    Any clue as to what is going on here?
    P8020092Z.JPG
    Image 2.
     

    Attached Files:

    Last edited: Aug 4, 2016
  2. Mick West

    Mick West Administrator Staff Member

    What you labeled Lewis and Harris is actually part of the Isle of Skye:
    20160804-072927-tkfu4.

    20160804-073003-xy7zo.
     
    • Agree Agree x 1
  3. Mick West

    Mick West Administrator Staff Member

    Here's a Google Earth file, with Photo overlay:
    20160804-074656-k69rt.
     

    Attached Files:

  4. Trailblazer

    Trailblazer Moderator Staff Member

    Having been to that part of the world, I think that the prominent triangular peak at the centre of the left-hand landmass (under the "a" of "Harris") is Healabhal Bheag (one of "MacLeod's Tables"). The cluster of peaks that were labelled as "Isle of Skye" is definitely the Cuillin Hills.
     
  5. Gallso

    Gallso New Member

    Thanks Mick for the explanation.
     
  6. Gallso

    Gallso New Member

    Correct Trailblazer. I do see the flat table in the last photo. Proves curvature!! Good.
     
  7. Gallso

    Gallso New Member

    This is a really good example of proving curvature. To physically see the Isle of Barra lower behind the horizon as the distance from the island is increased was great to experience. A single photo from a point on land is not enough as we can get mirages etc.

    I do thank Mick and Trailblazer for correctly identifying my photo as being Skye. Now, if only I had had an old fashioned compass at the time, (or a phone with a built in compass) I would not have been thrown off base.

    I'm glad I joined this forum.

    Cheers, Paul
     
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