1. Steve Funk

    Steve Funk Active Member

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  2. Leifer

    Leifer Senior Member

    I purchased some glass slides from the 1890's (edit: 1880s ??), from an internet auction site. They shipped from England.
    The photographer is George Washington Wilson (G.W.W.).
    You can read about him here.

    (I took photos of these slides with a macro lens, with a home-made light box.)


    The first image, is an early example of Altocumulus and Altostratus , and are believed by some to be "HAARP clouds" or "scalar clouds"........but these natural clouds have always been around.


    GWW_glass_1890s-2.



    GWW_glass_1890s-4.
     
    Last edited: Mar 22, 2015
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  3. Efftup

    Efftup Senior Member

    Ah, but these are from the 1890's, the time of Nikolai Tesla. So watch "true Believers" claim that HAARP is reproducing the work of Tesla and these clouds were caused by a Tesla tower.
    I shouldn't give them ideas,.
     
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  4. Leifer

    Leifer Senior Member

    The problem with that, is Tesla was not experimenting with high freq/high energy radio waves until 1899 --at the very earliest.....and were quite low-power. The experiments and inventions noted by conspiracy believers, were from the early 1900's and onward.
    G.W.W. (the photographer in the prior post) ...died in 1893, so these cloud photos were well before Tesla's time of wild experiments. The above photos were likely from the 1880's, or earlier.
    University of Aberdeen Photographic Archive
     
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  5. Leifer

    Leifer Senior Member

    A 1996 (or earlier ?) educational film primarily for sailplane/glider pilots. Though it is basic, it has good info.
    Photographed and narrated by Brian Cosgrove.
    The film has large contrails @1:50, and Cosgrove describes the lack of adequate cloud types and descriptions found in average textbooks, because of space and cost (budgetary concerns) for these books to go any more in depth.

    He photographs and describes nearly all the conspiracy's "disputed clouds"....lenticular, mammatus, mackerel sky, etc...



    Evidence for this film, and the year it was made....I found a review of it, in the bi-quarterly publication "Sailplane & Gliding" April-May 1996. (link)
    pilots_sky_review_2.
    pilots_sky_review_1.
     
    Last edited: May 16, 2015
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  6. Pete Tar

    Pete Tar Moderator Staff Member

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  7. JFDee

    JFDee Senior Member

    A recent review in the New York Times, introducing a new book about the history of meteorology, has made me aware of Thomas Forster, an English weather and cloud observer of the early 19th century.

    In his 1813 work "Researches About Atmospheric Phaenomena", he references and extends the cloud classification by his fellow countryman Luke Howard. Later editions of the book include his weather and nature observation journals from 1806 to 1819.

    The full second edition is available at Google books and in itself an interesting read that I've only just started.

    However, most striking are the seven illustrations by the author himself - which may come handy in discussions about this or that cloud "not being natural". These plates were first printed in 1806.

    Among others there are several halo variations, cirrus uncinus, ripples and a thunderstorm, nowadays referred to as "chem-bomb" by some believers. Here is an example:

    ThomasForster_Clouds.

    The illustrations - except for the halos - are at the end of the book, preceded by their explanation.

    (Just for fun, I searched for available copies of the original book. I found two offers for German translations - from 1819 - one for 400, the other one for 680 Euros ... There are several reprints on eBay available though)
     
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  8. Leifer

    Leifer Senior Member

    Here is yet another early publication showing "mackerel skies" (alto-cumulus)....1916.
    (they were common, before HAARP)
    This is another eBay purchase of mine.


    uvc006.

    uvc007.
     
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  9. Chew

    Chew Senior Member

    tea chemtrails.
     
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  10. Mick West

    Mick West Administrator Staff Member

    The Weather Book - web.
     
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  11. skephu

    skephu Senior Member

    Flawed, ambient humidity is not required for contrail formation.
    And the graphic shows condensation forming directly inside the exhaust where it's still hot.
     
  12. Mick West

    Mick West Administrator Staff Member

    The usefulness of that image is more that it's in a physical book from 1997. The entire book oversimplifies things.
     
  13. Steve Funk

    Steve Funk Active Member

    Last edited by a moderator: Aug 29, 2015
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  14. Trigger Hippie

    Trigger Hippie Senior Member

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  15. Leifer

    Leifer Senior Member

    Last edited: Oct 9, 2015
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  16. Critical Thinker

    Critical Thinker Senior Member

  17. Gridlock

    Gridlock Active Member

    [​IMG]

    "Air Crash Investigation" episode "Edge of Disaster".
     
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  18. Critical Thinker

    Critical Thinker Senior Member

    From CNN, a short article and video explaining cloud seeding and showing the apparatus used (which is often mistakenly promoted by chemtrail CTers as chemtrail spray equipment).




    Link

     
    Last edited: Mar 30, 2016
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  19. Mick West

    Mick West Administrator Staff Member

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  20. Graham2001

    Graham2001 Active Member

    A pair of US Air Force videos intended to be used to train meteorologists.

    The first dates from 1962



    The second dates from 1966

     
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  21. Graham2001

    Graham2001 Active Member

    Located another pair of US Airforce meteorology training films from 1971. These ones deal with interpreting satellite imagry. Both were uploaded in two parts. To date the uploader has not re-uploaded the films in 1 part versions.

    Satellite Meteorology: Cloud Patterns (USAF Weather Forecasting, 1971) Pts 1 & 2





    Satellite Meteorology: Upper Air & Tropical Synoptic Applications (USAF Weather Forecasting, 1971) Pts 1 & 2



     
    Last edited: Oct 17, 2016
  22. Graham2001

    Graham2001 Active Member

  23. Trailblazer

    Trailblazer Moderator Staff Member

    This is something I had been meaning to do for a while: take a map of flight paths in my area from skyvector.com and overlay it into the sky in Google Earth at typical airliner cruise altitude, then compare the ground-level view to the contrail patterns I see from my location in various directions.

    1:

    upload_2016-10-17_17-18-0.

    upload_2016-10-17_17-18-28.



    2:

    upload_2016-10-17_17-19-13.

    upload_2016-10-17_17-20-55.



    3:

    upload_2016-10-17_17-27-19.

    upload_2016-10-17_17-28-46.



    Not a perfect match, by any means, as contrails do not exactly follow flight paths due to wind etc, but I think it's a fairly good illustration of how normal commercial flight paths produce these patterns.
     
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  24. Graham2001

    Graham2001 Active Member

    I was watching my way through the 12 part series on the history of photography by the George Eastman (Kodak) Museum and saw something in the 11th episode on color photography that I had not known before and which may in part explain the rise in claims that 'all clouds are fake'.

    The detail in question was that many 19thC emulsions had equal sensitivity to blue and white causing the sky to be reproduced as a uniform shade. The relevant bit runs from 0:50 to 0:15.

     
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  25. Landru

    Landru Moderator Staff Member

    @Graham2001 do you mean the 20th century? The period between 1901 and 2000.
     
  26. NoParty

    NoParty Senior Member

    It is talking about mid 19th Cent...around 1850.

    Interesting stuff, but way, way too early to contribute to the "chemtrails" nonsense.
     
  27. Graham2001

    Graham2001 Active Member

    Well one tendency (Aside from Americocentrism and finding a convoluted way to blame the whole thing on Jews) I've noticed among conspiracy theorists of all stripes is a tendency to push the boundaries of a conspiracy theory further and further back in time. And with some Chemtrailers denying that clouds exist it is worthwhile making information like this available.
     
  28. Leifer

    Leifer Senior Member

    I'm painting a Christmas display.
    While not realisticaly or scientifically accurate, thier design reminds me of crisscrossing trails....
    1479185293345-617277525.
     
  29. Graham2001

    Graham2001 Active Member

    Jeff Quitney re-uploaded one of the two US Airforce weather forecasting films I linked to earlier in a unified version as opposed to two parts. As I cannot edit the old post. Here is the link to the current version.

    Satellite Meteorology: Cloud Patterns (USAF Weather Forecasting, 1971)

     
  30. Leifer

    Leifer Senior Member

    Here's me painting some contrails and cirrus.....for a TV commercial.

    DS2_0860.

    DS2_0901.

    Finished.....with changes, and a piece of tape.

    DS2_0965.
     
    Last edited: Dec 1, 2016
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  31. Leifer

    Leifer Senior Member

    Last edited: Dec 6, 2016
  32. Critical Thinker

    Critical Thinker Senior Member

    An interesting phenomenon is occurring at Yellowstone's Old Faithful geyser that visually demonstrates how the introduction of super-heated water into a frigid temperatures results in an expanding 'cloud', which seems similar to how super-heated water/emissions found in aircraft contrails form and expand in the colder air found in high altitudes.

    IFLScience article






    In comparison to Old Faithful erupting in warmer temperatures... also noteworthy is the prisming (?) of light that is displayed in the video.

     
    Last edited: Dec 28, 2016
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  33. Mick West

    Mick West Administrator Staff Member

    It's related but not really the same. Geysers are mostly liquid water by mass, a lot of what you see is that water evaporating, condensing, then (if it's cold enough) freezing. Similar to throwing a cup of near-boiling water on a sub-zero day, as hiscussed here:
    https://www.metabunk.org/debunked-b...-you-throw-it-in-the-air-at-40-degrees.t2902/
     
    Last edited: Dec 28, 2016
  34. Trailblazer

    Trailblazer Moderator Staff Member

    Here's a nice resource showing the percentage of aluminium in topsoil in England and Wales:

    http://mapapps2.bgs.ac.uk/ukso/home.html

    (click the + button at the top right then add the "NSI Topsoil Aluminium" layer)

    Note the typical range of figures, and that the southeast, which has the heaviest air traffic, tends to have generally lower levels.

    upload_2017-4-25_19-7-14.

    The highest and lowest levels I can find, from semirandom clicking in the red and blue zones, are just over 10% in Somerset and just over 2% in the Yorkshire Dales. My own area in northeast Hampshire is well below average at around 3%, but that's still 30,000ppm!
     
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  35. Graham2001

    Graham2001 Active Member

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