Experiments to Prove Earth's Roundness

Apr 12, 2025

Lecture on Flat Earth Experiment

Introduction

  • Objective: To challenge a flat-earther's belief by conducting an experiment to prove the Earth is round.
  • Method: Large scale, extensive experiment using a boat and telescopes.
  • Verification: Lie detector test at the end of the experiment.

Experiment Setup

  • Location: First trip to the ocean for the believer.
  • Hypothesis: If the Earth is round, a boat going over the horizon will disappear bottom first.
  • Materials: Tall boat, telescopes, measurement tools.
  • Participants: Seb (the flat-earther), Jack, Josh, Colin, and Captain Matt.

Methodology

  • Boat Observation: As the boat travels, observe if it disappears over the horizon in stages—bottom first, then the middle, and finally the top.
  • Math Verification:
    • Use the Pythagorean theorem to calculate visibility range based on Earth's curvature.
    • Visibility expectation: 3.0 miles to horizon, then complete disappearance by 5.87 miles.
  • Second Observation: Use an elevated position (top floor of a building) to see the boat again over the Earth's curvature.

Results and Observations

  • Initial Observations: Slight doubts as the boat appeared to not disappear as expected.
  • Adjustment: Boat was moving parallel, not further, causing initial misinterpretation.
  • Final Observations: Boat disappeared at predicted distance, verified by telescopes and math.
  • Elevated View: From a higher vantage point, the boat was visible again.

Discussion

  • Believer's Skepticism: Seb was open to changing his belief but remained cautious.
  • Verification: Use of lie detector to affirm honesty of experiment participants.
  • Sponsor: Delete Me helped fund the experiment.

Conclusion

  • Outcome: Seb convinced of the Earth's roundness by the end of the experiment.
  • Trust: Reassured of no deception involved in the experiment.
  • Final Actions: Seb symbolically ripped up a flat Earth map.
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Reflection

  • The experiment demonstrated the Earth's curvature convincingly and changed a skeptic's view through firsthand experience and mathematical evidence.