I read about these in a few places,

This article states:

Powers of Longitudinal Wave Interferometers

1 - influence and control the weather,

2 - deviate the giant jetstreams of the upper atmosphere,

cited by Tom Bearden at Cheniere.Org

This article states:

The talk was given in the mid-1980s and since then, the technology has been developed into more rigorous longitudinal EM wave interferometry, which is the exact nature of those earlier weather engineering weapons.

So, do these weapons actually exist? (or are they just theoretical)

And have they ever been used?

  • 12
    First link is to a page with "Time Cube" levels of crazy and the second link is to a chemtrail site. Can you come up with any better sources than that?
    – DenisS
    Commented Jan 25, 2018 at 21:47
  • 4
    Googling "Longitudinal Wave Interferometry" brings up a LOT of rubbish sites, but nothing even remotely sane/reputable. A lot of them seem to be referencing this Tom Bearden fellow, who is also involved with free energy/perpetual motion device shenanigans. Commented Jan 25, 2018 at 22:00
  • 8
    I'll just observe that a "-meter" is something used to produce some sort of measurement. It is not something used to cause alterations. Commented Jan 25, 2018 at 23:07
  • 10
    This claim's confusing. "Interferometry" is, by definition, an observational technique. Even if an interferometer were repurposed to perform some other task, e.g. control the weather, it'd no longer be "interferometry".
    – Nat
    Commented Jan 26, 2018 at 2:19
  • 8
    Also, "Maybe I was too quick to judge the Chemtrails site for lacking notability" is a sentence I never thought I would type in my life.
    – DenisS
    Commented Jan 26, 2018 at 16:29

1 Answer 1


I don't believe "longitudinal wave interferometry" is actually a thing. Therefore, I think it's safe to say that any related weapons do not actually exist, and even implying that said weapons are "just theoretical" would be giving the whole notion too much legitimacy.

Google Scholar returns only one result for "longitudinal wave interferometry", which is a paper by Bearden and others describing an inherently-fictional free energy device.

Regarding the second quote in your question, EM waves are transverse waves, so the mention of longitudinal EM wave interferometry doesn't even seem meaningful.

Lastly, interferometry is an observation and measurement technique, as many have pointed out in the comments. To say that interferometry has been used as any kind of weapon is absurd.

  • 1
    So basically they even got every word wrong in the name of their fictional device. Classic.
    – JMac
    Commented Feb 2, 2018 at 19:21

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