flat earth

  1. Rory

    Debunked: Rivers flow uphill

    In @ericdubay's "200 proofs" list he claims that rivers such as the Nile, the Paraná, the Congo, the Paraguay, and the Mississippi "flow uphill". The rationale behind it seems to be that rivers which flow from north to south (in the northern hemisphere), or south to north (in the southern), and...
  2. Sandor Szekely

    Lake Balaton Laser experiment to determine the curvature of the Earth, if any.

    This thread documents the progress of planning, execution, and analysis of an Experiment conducted by Sandor Szekely (a believer in the "Flat Earth" theory) on Lake Balaton in Hungary. The goal of the experiment was to measure the curvature of the surface of a lake by shining a laser across it...
  3. Mick West

    Space Station Photos Disprove the "Flat Earth" Theory

    The above sequence of images is the international space station. I took them on Saturday, May 28th 2016, at 9:28PM in the Northern California town of Shingle Springs (near Sacamento). They are not very good, but you can still make out the general shape of the ISS, with the central body, and the...
  4. Z.W. Wolf

    Debunked: Gyro Experiment - Proves Motionless Earth?

    This experiment supports the null-hypothesis (earth is not moving). The experiment is faulty, of course, but I suspect anything I might say about that would be hopelessly naïve. The most cogent comments to this video I could find: Eric Charters2 months ago The gyro appears to precess only...
  5. Vogon

    Infra red cameras and curvature?

    So, this supposedly shows Three Lakeway Center, in Metairie, Louisiana, a 403-foot (123 m)-tall skyscraper from the other end of Lake Pontchartrain Causeway. Curvature should show a 116m drop for that distance, and the buildings around it are lower than 116m. (Google Street, from the...
  6. Chew

    Debunked: flat earth claims about lighthouse ranges

    Flat earthers will quote the height and range of a lighthouse and then claim the light should be hundreds of feet below the horizon at that range if the world were spherical. So therefore the world is flat. But they are assuming the listed range of a lighthouse is the maximum range it can be...
  7. Alec Riz

    Explained: Flat Earth Theory: Why don’t our clocks have to change by 12 hours in 6 months?

    When researching Flat Earth Theory there is 1 claim that I am finding puzzlingly hard to debunk. If the earth is spinning around its own axis, and orbiting around the sun, at a regular speed then, why don't we have to change our clocks by a full 12 hours every 6 months to account for the fact...
  8. Mick West

    Explained: Why Clouds Appear Behind the Sun and Moon

    Sometimes clouds appear to be behind the sun or the moon in photos and videos, like the example above (source). This confuses people, as the sun is 93 million miles away, so it's impossible for clouds to be behind it. Some people take this as evidence that reality is an illusion, or the Earth is...
  9. Mick West

    What to do about the Flat Earthers? Debunk, or ignore?

    My father was a member of the Flat Earth society. He knew the Earth was a globe, but liked the idea of questioning assumptions. Like many (if not most) flat earthers he was just playing devil's advocate - for intellectual amusement, and to make a point about accepting claims on face value. The...
  10. Mick West

    Flat Earth Theory Debunked by Short Flights (QF27 & QF28) From Australia to South America

    To debunk the Flat Earth theory, you can just use Sydney to Santiago, Chile, Quantas flight 27, 7000 miles. 12 hour flight. This flight would be impossible on the Flat Earth model, requiring the plane to travel at twice the speed of sound. Santiago is the furthest south South American city...
  11. G

    Needs debunking: Video of a solar eclipse is fake because we cannot see the moon covering the sun

    A particular flat earth video calims this video of a solar eclipse taken from a space balloon is fake because we cannot se the moon covering the sun in the footage of this solar eclipse: Why dont we see the moon covering the sun in the in the video? Shouldnt we see it? Or is it because of...
  12. David Ridlen

    Earth curvature refraction experiments - debunking flat/concave Earth

    I keep being presented with 'earth curvature experiment' videos recently, by flat/concave earth advocates. It seems to be their new favorite "evidence" that Earth is not spherical. Debunking this gets into math which I stink at, regarding refraction. I would like to be sure I have considered...
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