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  1. Mendel

    Claim: Original Calvine UFO Photo

    If you turn 16 between 1 March and 30 September you can leave school after 31 May of that year. that's been true since 1973 not sure how old the kitchen regulation is, but remember a witness was claimed to be a dishwasher, that could be the younger one
  2. Mendel

    Refraction of light on a flat earth

    photon propagation at the subatomic level is weird, I can't say I fully understood it when I looked at refraction some time back (thanks, Metabunk!). The high-school level idea is that photons move along guided by the electromagnetic field, which follows the principles of wave propagation...
  3. Mendel

    Refraction of light on a flat earth

    Imagine a tank, or a tracked bulldozer. If both tracks run at the same speed, the tank moves in a straight line, but when one track is faster and the other is slower, that doesn't "cancel out", it makes the tank turn toward the slower side ("differential steering"). And you're right, the...
  4. Mendel

    Retired F-18 Pilot Reports 5 UAPs Pacing His Aircraft Over Channel Islands 8-18-22

    A Gulfstream G650 is not licensed for single-pilot operations. Some other aircraft are.
  5. Mendel

    Retired F-18 Pilot Reports 5 UAPs Pacing His Aircraft Over Channel Islands 8-18-22

    Please don't get hung up on terminology. Both people in the cockpit are fully FAA-certified to fly the aircraft, and the organisation operating the aircraft designs one as pilot in-command (PIC). The PIC traditionally occupies the left seat, but that's not set in stone. At any time, one pilot is...
  6. Mendel

    Debunking Humor...

    I'd like to buy a 'P'
  7. Mendel

    Welcome Thread - New Members Post Here

    Ideally, it should be in https://www.metabunk.org/forums/Tools/ (subforum under "Practical Debunking").
  8. Mendel

    Comparing flat Earth and spherical Earth from a geometric point of view

    Well, that these elevators don't exist is proof that Earth is flat, of course! When I worked for Target Corp, we had a huge warehouse in CA. When it was originally built, it followed the curve, to save excavation costs. Years later, we added a large automated storage retrival system which had...
  9. Mendel

    Claim: Declining rail mode share in Japan proves high-speed rail is impractical

    they can just as easily shoot up a busy restaurant, or place a bomb on the tracks. You can't use "security" to prevent attacks, all you'd do is inconvenience all travellers. (kind of like the effect of copy protection on digital media)
  10. Mendel

    Claim: Declining rail mode share in Japan proves high-speed rail is impractical

    that's 60 km per week per person, and, given that some commute via these trains, it seems entirely plausible
  11. Mendel

    Comparing flat Earth and spherical Earth from a geometric point of view

    Does he explain why the bridge appears to curve down in Soundly's videos and photographs?
  12. Mendel

    Patterson-Gimlin Bigfoot film is a hoax?

    Source: https://imgur.com/gallery/5IM0Mk0 gorilla costume, 1964 except for that one patch with the stitches...
  13. Mendel

    Refraction of light on a flat earth

    Yes. That's why your mathematical model does not describe physical reality.
  14. Mendel

    Claim: Original Calvine UFO Photo

    Where would you ever find such a forum? ;) The paper is reported to have copied the Calvine negatives before passing them on to the MoD, as a routine precaution—possibly the "original negatives" that turned up in the Mcminnville case are also copies.
  15. Mendel

    Refraction of light on a flat earth

    No, it doesn't. Imagine a sine wave that crosses several layers at once and figure out how it would bend. You will see bending all the way down (or until the beam leaves the atmosphere) no matter what the departure angle is. This is also experimentally demonstrable, look for videos of the...
  16. Mendel

    Refraction of light on a flat earth

    Apparently this is a standard physics lecture demonstration. An even layer of granulated sugar, about a centimeter thick, is placed on the bottom of a small water tank. Water is slowly added by dribbling from a hose that is constantly moved over the surface, to cause minimum disturbance of the...
  17. Mendel

    Claim: Congress implies UFOs have non-human origins

    Non-man-made UAP encompass birds, bats, bugs, weather phenomena such as lenticular clouds or gravity waves, astronomical objects, and optical illusions such as bokeh. For examples, see metabunk.org. By the time Project Blue Book ended, it had collected 12,618 UFO reports, and concluded that...
  18. Mendel

    Welcome Thread - New Members Post Here

    Review the forum rules under the "Info" heading on the site navigation menu. For most of the forums, a discussion starter must provide evidence of a claim, and this evidence must be shown entirely in that post, quoting sources where necessary/appropriate. What you have in mind seems suitable...
  19. Mendel

    Weird waves in the sky, does anyone know what these are?

    Nothing to do with particle physics. Air can have one of two motions, which are either STRAIGHT or WAVE. These waves can be vertical or horizontal. When you look at a 500-millibar chart with the troughs and ridges you are looking at horizontal waves (waves on a more or less horizontal plane)...
  20. Mendel

    Comparing flat Earth and spherical Earth from a geometric point of view

    That's an example of mixing FE thinking with globe analysis. It'd only "downhill" if you think "same level" is flat, when it's (very slightly) curved (as is the ocean) on the globe. If you put a globe in flat-Earth-land (as FEers would do by placing a household globe on their kitchen table)...
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