The power levels required to cause physical injury are definitely detectable with very simple circuitry (RF diode in series with an LED, and a very short antenna), so these people could carry one on their person to determine if it is directed RF, if it happens again.
Ironically, these "attacks" could be easily defeated by literally wearing a tinfoil hat...
- facing the threat, whereupon the parabolic antenna focusses the energy on a single part of the brain (and the wearer loses, say, her grandmother or perhaps all words ending in "-ed", etc.) or
- facing away from the threat, whereupon the energy is safely dispersed by the foil.
So one could cleverly use the parabolic foil as a one-time direction detector, asking their friend to wear it for a moment and to please turn to their left or right until something happens? Do this twice with two former acquaintances and you can use their positions and last facing angles to triangulate to the location of the offending equipment.
To protect oneself, one should do a complete head foil wrap (the neck might still be a thruway for danger, since the transmitter could be embedded in the floor, so maybe foil soles for your footwear?) Seems the spies would be significantly easier to spot if this were the typical modus operandi.
See now, this is why they tell people not to take advice from the internet :)
However, you're correct old crystal radios worked like this. Condenser Mics might also work with some rectification.
there is actually a case here assuming russian-cuban ties are still strong after the USSR - e.g. if USA is trying to clean up shop entirely, it could be a warning that such activity will not be taken lightly..
Edit: I have a video of it, it's not as clear in the video as it is in real life though. You have to put volume at 100%.(https://www.dropbox.com/s/7h7n46kzqarzt0l/fridge.mp4?dl=0)
I think that the article describes the aftereffects of something like geological activity, so while its roots are real, the consequences are the product of "tired" minds. I heard also that if doctors allow their clients to speak about symptoms in waiting room, then many of them start having these "group symptoms" and diagnostics may go very wrong way.
Like this one (hot link): https://i.sakh.com/info/p/photos/13/131076/f58f5390937072.jp...
But I suspect something more mudane: a microwave beam, intended at powering a listening device seems more likely.
The weird thing is why the Cuban do not switch it off now that it has been detected.
That seems to be the obvious explanation to me. They were exposed to some sort of chemical which caused a stroke or seizure or migraine or whatever. Hell, there's no reason to think it couldn't have been a disease.
I thought of that too. Possible PTSD among many of the affected?
https://skeptics.stackexchange.com/questions/3638/is-it-poss...
Is it possible the sounds heard were illusory, as a result of whatever caused the brain damage? So not a sonic weapon, but some other mechanism of action?
> The blaring, grinding noise jolted the American diplomat from his bed in a Havana hotel. He moved just a few feet, and there was silence.
So something that can be focused at a specific point. If not a sonic weapon, then it has to be electromagnetic?
Talk about bizarre. Whole thing reads like a conspiracy theory. Presuming the reporting is accurate, it's hard not to believe people were specifically targeted with the internet to harm them (rather than the alternative explanation of an espionage technology gone wrong), if the effects were localized on their beds (i.e. a specific physical location where they would be known to be for several hours).