File:Water horizon (compressed).jpg

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Original file (100 × 1,200 pixels, file size: 20 KB, MIME type: image/jpeg)

Captions

Captions

A water horizon in northern Wisconsin, USA. By compressing the image, we can accentuate the curvature of the horizon due to the Earth being a globe, and not flat.

Summary

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Description
English: A water horizon in northern Wisconsin, USA.

By compressing the image, we can accentuate the curvature of the horizon due to the Earth being a globe, and not flat.

Methodology:

"The horizon appears flat because the curvature is too small when observed from near the Earth’s surface. However, in some cases, we can exaggerate the curve by taking photographs of the horizon and then magnifying the results vertically".

"The wider the lens and the higher the observer’s position, then the larger the curvature will appear, and the less possibility to be affected by lens distortions".

"A wide-angle lens usually has barrel distortion. Because we cannot know whether the photographer bothered to correct the distortion, it is a good idea to find pictures where the horizon line is right in the middle, where the distortion is minimal."

However:

"If the photo has barrel distortions, then a horizontal straight line below the center point will appear concave. If the result is convex, then there’s a good possibility that the curve of the horizon overwhelms the effect of barrel distortion."

See: https://flatearth.ws/vertical-magnification
Date
Source
Image extraction processThis file has an extracted image: Water horizon.jpg.
lang=en
Author

Original: Citynoise

Edit: Artistosteles

Licensing

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Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

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Date/TimeThumbnailDimensionsUserComment
current21:57, 2 September 2024Thumbnail for version as of 21:57, 2 September 2024100 × 1,200 (20 KB)Artistosteles (talk | contribs)Uploaded a work by Original: Citynoise Edit: Artistosteles from {{Extracted|Water horizon.jpg}} with UploadWizard

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