The Lieutenant-Colonel Portlock Experiment

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The Lieutenant-Colonel Portlock experiment used oxyhydrogen Drummond’s lights and heliostats to reflect the sun’s rays across stations set up across 108 miles of St. George’s Channel. If the Earth were actually a ball 25,000 miles in circumference, Portlock’s light should have remained hidden under a mile and a half of curvature.

One thought on “The Lieutenant-Colonel Portlock Experiment

  1. This is a false assertion by the FE community because they assume the experiment was conducted at SEA LEVEL, or they leave out the fact, that the lights were set up on mountains. One peak at 2483 feet and one peak at 1700 feet a difference of 783, well within the drop in curvature of 1,042 feet.

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