Curvature Calculator
v2.0
Calculate observer horizon, combined horizon, dip angle, and hidden target height with transparent formulas.
Cross-content topic · 12 matches
Curvature
This page groups tools, debunks, and experiments that connect to the tag “Curvature”.
3 tools7 debunks2 experiments
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Interactive models, calculators, and simulations connected to “Curvature”.
Fisheye Lens Horizon Simulator
v2.0
Simulate how a fisheye lens can bend a straight horizon in wide-angle footage, especially when the horizon sits away from the image center.
Debunks
Claim-by-claim responses tied to the same topic and underlying theory.
No Curvature Is Visible
v1.1
The Earth cannot be a globe because no visible curvature appears over water or at normal viewing height.
Down Is The Same Everywhere
v1.0
People everywhere stand upright the same way, so there cannot be a globe with different local vertical directions.
Sunsets Are Only Perspective
v1.0
The Sun does not go below a curved horizon. It only appears to recede into perspective.
Experiments
Repeatable observations you can use to test the same topic directly.
Shoreline Hidden Height Check
v1.4
Do distant shorelines or structures lose their lower sections first over water, as curvature predicts?