Ship Sailing over the Horizon

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As a ship sails away from your vantage point on shore, it appears not only to get smaller with distance but also to sink below the horizon, the lower parts of the ship disappearing first. This is a consequence of the curvature of the Earth.
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Contributed by: S. M. Blinder (March 2011)
Open content licensed under CC BY-NC-SA
Snapshots
Details
Snapshot 1: ship about to reach the horizon
Snapshot 2: view through telescope
Snapshot 3: ship begins to disappear beyond horizon
Permanent Citation
"Ship Sailing over the Horizon"
http://demonstrations.wolfram.com/ShipSailingOverTheHorizon/
Wolfram Demonstrations Project
Published: March 7 2011