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  1. Trailblazer

    I could have spiralled into flat earth belief.

    Also "I would rather go to a library than a party"? I mean, there are parties and there are parties. Summer party at the great aunt's nursing home? Let me grab my library card...
  2. Trailblazer

    I could have spiralled into flat earth belief.

    I scored 21 on the questionnaire. But then the questions seem fairly transparent in their intention, so I might have been subconsciously gaming my score ;)
  3. Trailblazer

    Photos of Clouds and Skies (That you took yourself)

    Mammatus clouds over London, after the UK recorded 100°F for only the second time in history today.
  4. Trailblazer

    Brian Cox on Orbital Motion

    Also noted here: Source: https://twitter.com/nick_attree/status/1143613887968874496
  5. Trailblazer

    Brian Cox on Orbital Motion

    Transcript of the relevant section, taken from the BBC iPlayer subtitles: So, something must be holding those rings in place, and the answer can be seen in this photograph taken by Voyager 2: You can see a bright, thin ring, which is known as the epsilon ring, and, above it and below it, you...
  6. Trailblazer

    Two problems need help debunking and debating tips? please.

    Don't use apples, use dollars (or your currency of choice). Having a negative number of apples isn't intuitive, but being overdrawn is (for some of us, anyway :( ). If you only have $5 but you have to give someone $6, you are left owing them $1, so you have minus one dollar.
  7. Trailblazer

    Chicago Skyline from Indiana Dunes, 33 miles away

    That Google Earth comparison is missing a tall building at the left, which seems to be the Essex on the Park tower. (It only opened this year.)
  8. Trailblazer

    Unusual Light Track in Long Exposures, Grand Canyon

    Somebody with the knowhow needs to do a simulated ground view from the camera location with the KML track superimposed. I could but I won't be on my home computer till tomorrow. @Mick West ?
  9. Trailblazer

    Unusual Light Track in Long Exposures, Grand Canyon

    Are you sure? It was a wide-angle shot (14mm lens), which has a horizontal field of view of about 104 degrees (AFAIK the D850 has a full-frame sensor, i.e. with no crop factor, so the FOV will be the same as for a 35mm film camera). If the camera was pointing east of south (about 28 degrees...
  10. Trailblazer

    Unusual Light Track in Long Exposures, Grand Canyon

    I don't have Google Earth on this computer, but I grabbed the KML file from Flightaware, if anyone wants to play with it.
  11. Trailblazer

    Unusual Light Track in Long Exposures, Grand Canyon

    AA1203 flew almost directly over the camera location (circled) at 4.12am UTC (10.12pm local time), at just under 20,000 feet and climbing. That's about one minute before the first photograph was taken. It was heading almost due east, but if the camera was pointing east of south, that might...
  12. Trailblazer

    Unusual Light Track in Long Exposures, Grand Canyon

    I can’t see any obvious candidates at that time on Planefinder, but it would be helpful to pin down the exact location. As others have said it may be a small plane that wouldn’t show up on flight radar sites.
  13. Trailblazer

    Unusual Light Track in Long Exposures, Grand Canyon

    Do we know the exact location of the photos? At that time, Jupiter (which appears to be the brightest "star" in the sky) was virtually due south (sky chart centred on Tusayan AZ)
  14. Trailblazer

    Debunking Humor...

    According to the magazine, competition for the worst spot in the rankings was particularly fierce this year, with the Mariana Trench competing with locations as far-ranging as Mt. Everest, an industrial slaughterhouse, an iceberg drifting in the Arctic, St. Louis, and the cone of Hawaii’s Mauna...
  15. Trailblazer

    Matt Anderssen-Indigo airlines and consultant

    It's just a letter to the editor in The Guardian newspaper, published on February 9 2012. https://www.theguardian.com/environment/2012/feb/09/at-war-over-geoengineering It appears to have been written in response to an article three days earlier about the feasibility study published by Aurora...
  16. Trailblazer

    Debunked: Trees being cut down "because they block 5G" (tree replacement in Belgium)

    Tallahassee also has a proposed ordinance regulating communications facilities that is anticipated to go before the city commissioners for consideration at a public hearing in January or February 2018. That ordinance was passed in June 2018...
  17. Trailblazer

    UFO video in Arizona from Reddit

    No. It uses data from the NOAA's weather model. GFS, as far as I know. That weather model has grid points 18 miles apart, so the resolution isn't enough to give accurate wind directions in a given spot. If there is a strong overall flow it is probably close, but at the time in question the wind...
  18. Trailblazer

    UFO video in Arizona from Reddit

    My best guess is that it was taken from the rear deck of one of the houses on the east side of East Avenue, around here: https://www.google.com/maps/@34.748264,-112.1105692,224m/data=!3m1!1e3 At a couple of points (eg 0:13 and 0:37) you can see cars driving along State Route 89A in the bottom...
  19. Trailblazer

    Photos of Clouds and Skies (That you took yourself)

    Sometimes known as "jellyfish clouds". https://weather.com/science/news/jellyfish-clouds-20130924
  20. Trailblazer

    UFO video in Arizona from Reddit

    Maybe a close match? http://lincolncastricone.photodeck.com/media/72e67224-c78b-4212-baaa-02a3d89536fd-the-verde-valley-from-jerome-arizona The video could have been taken from one of the buildings on the hill to the left, which is Hampshire Avenue, here...
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